Difference between pages "Wind Energy" and "Suzlon Energy"

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This report presents a brief introduction to wind energy and technologies available for horizontal wind turbines. A detailed taxonomy for horizontal axis wind turbines is presented covering parts of the turbine, control systems, applications among others. A detailed landscape analysis of patent and non-patent literature is done with a focus on Doubly-fed Induction Generators (DFIG) used in the horizontal axis wind turbines for efficient power generation. The product information of major players in the market is also captured for Doubly-fed Induction Generators. The final section of the report covers the existing and future market predictions for wind energy-based power generation.
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==Company Overview==
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[[Image:Wind_Energy.JPG|right|thumb|600px| Wind Energy]]
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Suzlon Energy (Suzlon) is engaged in the manufacture and sale of wind turbine generators (WTGs) and components. It provides various wind energy solutions including wind resource mapping, site identification and development, installation, operation, and maintenance services. The company has operations across Americas, Asia, Australia, and Europe. It is headquartered in Pune, India and employs about 16,000 people.
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The company recorded revenues of INR206, 196.6 million ($4,330.1 million) during the financial year ended March 2010 (FY2010), a decrease of 20.9% compared to FY2009. The operating profit of the company was INR6, 125 million ($128.6 million) during FY2010, a decrease of 77% compared to FY2009. The net loss was INR9, 825.6 million ($206.3 million) in FY2010, compared to a net profit of INR2, 364.8 million ($49.6 million) in FY2009.
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=Introduction=
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<br>
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* We have been using wind power at least since 5000 BC to propel sailboats and sailing ships, and architects have used wind-driven natural ventilation in buildings since similarly ancient times. The use of wind to provide mechanical power came later.
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<br>
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* Harnessing renewable alternative energy is the ideal way to tackle the energy crisis, with due consideration given to environmental pollution, that looms large over the world.
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===Key Facts===
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<br>
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* Renewable energy is also called "clean energy" or "green power" because it doesn’t pollute the air or the water. Wind energy is one such renewable energy source that harnesses natural wind power.<br>
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== Read More? ==
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Click on '''[[Wind Energy Background]]''' to read more about wind energy.
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In order to overcome the problems associated with fixed speed wind turbine system and to maximize the wind energy capture, many new wind farms are employing variable speed wind energy conversion systems (WECS) with doubly-fed induction generator (DFIG). It is the most popular and widely used scheme for the wind generators due to its advantages.
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For variable-speed systems with limited variable-speed range, e.g. ±30% of synchronous speed, the doubly-fed induction generator(DFIG) can be an interesting solution. This is mainly due to the fact that the power electronic converter only has to handle a fraction (20-30%) of the total power as the converters are connected to the rotor and not to the stator. Therefore, the losses in the power electronic converter can be reduced, compared to a system where the converter has to handle the total power. The overall structure of wind power generation through DFIG as shown in the figure below.
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=Market Research=
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==The History of Wind Energy==
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* '''3200 BC:''' Early Egyptians use wind to sail boats on the Nile River
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* '''0   : ''' The Chinese fly kites during battle to signal their troops
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* '''700s :'''      People living in Sri Lanka use wind to smelt (separate) metal from rock ore. They would dig large crescent-shaped furnaces near the top of steep mountainsides. In summer, monsoon winds blow up the mountain slopes and into a furnace to create a mini-tornado. Charcoal fires inside the furnace could reach 1200°C (2200°F). Archaeologists believe the furnaces enabled Sri Lankans to make iron and steel for weapons and farming tools.
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:'''.'''<br>
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:'''.'''<br>
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* '''1300s :'''      The Dutch invent the smock mill. The smock mill consists of a wooden tower with six or eight sides. The roof on top rotates to keep the sails in the wind.
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:'''.'''<br>
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:'''.'''<br>
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* '''1892        :'''      Danish inventor Poul LaCour invents a Dutch-style windmill with large wooden sails that generates electricity. He discovers that fast-turning rotors with few blades generate more electricity than slow-turning rotors with many blades. By 1908, Denmark has 72 windmills providing low-cost electricity to farms and villages.
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:'''.'''<br>
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:'''.'''<br>
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*'''2000s        :'''      North Hoyle, the largest offshore wind farm in the United Kingdom, is built. The Energy Policy Act of 2005 strengthens incentives for wind and other renewable energy sources.
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Source:[[Media:windenergy.pdf| Wind Energy]]<br>
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To know more about '''[[the History of Wind Energy]]''', '''[http://dolcera.com/wiki/index.php?title=Wind_Energy#The_History_of_Wind_Energy click here]'''
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==Global Wind Energy Market==
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===Market Overview===
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* In the year 2010, the wind capacity reached worldwide '''196’630 Megawatt''', after '''159’050 MW''' in 2009, '''120’903 MW''' in 2008, and '''93’930 MW''' in 2007.
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[[Image:World_Installed.JPG|center|589*277px|thumb|Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* Wind power showed a growth rate of '''23.6 %''', the lowest growth since 2004 and the second lowest growth of the past decade.
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* For the first time in more than two decades, the market for new wind turbines was smaller than in the previous year and reached an overall size of '''37’642 MW''', after 38'312 MW in 2009.
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[[Image:New.JPG|center|589*277px|thumb|Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* All wind turbines installed by the end of 2010 worldwide can generate '''430 Tera watt hours per annum''', more than the total electricity demand of the United Kingdom, the sixth largest economy of the world, and equaling 2.5 % of the global electricity consumption.
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* In the year 2010, altogether '''83 countries''', one more than in 2009, used wind energy for electricity generation. 52 countries increased their total installed capacity, after 49 in the previous year.
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* The turnover of the wind sector worldwide reached '''40 billion Euros (55 billion US$) in 2010''', after 50 billion Euros (70 billion US$) in the year 2009. The decrease is due to lower prices for wind turbines and a shift towards China.
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* China became number one in total installed capacity and the center of the international wind industry, and added '''18’928 Megawatt''' within one year, accounting for more than 50 % of the world market for new wind turbines.
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* The wind sector in 2010 employed '''670’000 persons''' worldwide.
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* Nuclear disaster in Japan and oil spill in Gulf of Mexico will have long-term impact on the prospects of wind energy. Governments need to urgently reinforce their wind energy policies.
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* WWEA sees a global capacity of '''600’000 Megawatt''' as possible by the year 2015 and more than '''1’500’000 Megawatt''' by the year 2020.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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===Global Market Forecast===
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* Global Wind Energy Outlook 2010, provides forecast under  [http://dolcera.com/wiki/index.php?title=Forecast_Scenarios three different scenarios] - Reference, Moderate and Advanced.
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* The Global Cumulative Wind Power Capacity is estimated to reach 572,733 MW by the year 2030, under the Reference Scenario
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* The Global Cumulative Wind Power Capacity is estimated to reach 1,777,550 MW by the year 2030, under the Moderate Scenario
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* The Global Cumulative Wind Power Capacity is estimated to reach 2,341,984 MW by the year 2030, under the Advanced Scenario
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* The following chart shows the Global Cumulative Wind Power Capacity Forecast,under the different scenarios:
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[[Image:Global_Forecast.JPG|center|618*363px|thumb|Global Cumulative Wind Power Capacity Forecast, Source: [http://www.gwec.net/fileadmin/documents/Publications/GWEO%202010%20final.pdf Global Wind Energy Outlook 2010]]]
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Source: [http://www.gwec.net/fileadmin/documents/Publications/GWEO%202010%20final.pdf Global Wind Energy Outlook 2010]
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===Market Growth Rates===
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* The growth rate is the relation between the new installed wind power capacity and the installed capacity of the previous year.
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* With '''23.6 %''', the year 2010 showed the second lowest growth rate of the last decade.
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[[Image:World_Market_Growth Rates.JPG|center|594*345px|thumb|World Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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* Before 2010, the annual growth rate had continued to increase since the year 2004, '''peaking in 2009 at 31.7%''', the highest rate since 2001.
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* The highest growth rates of the year 2010 by country can be found in '''Romania''', which increased its capacity by 40 times.
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* The second country with a growth rate of more than 100 % was '''Bulgaria (112%)'''.
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* In the year 2009, four major wind markets had more than doubled their wind capacity: '''China, Mexico, Turkey, and Morocco'''.
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* Next to China, strong growth could be found mainly in '''Eastern European and South Eastern European''' countries: Romania, Bulgaria, Turkey, Lithuania, Poland, Hungary, Croatia and Cyprus, and Belgium.
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* Africa (with the exception of Egypt and Morocco) and Latin America (with the exception of Brazil), are again lagging behind the rest of the world in the commercial use of wind power.
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* The Top 10 countries by Growth Rate are shown in the figure listed below (only markets bigger than 200 MW have been considered):
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[[Image:Top_Growth_Countries.JPG|center|606*428px|thumb|Top Countries by Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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==Geographical Market Distribution==
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* China became number one in total installed capacity and the center of the international wind industry, and added '''18'928 Megawatt''' within one year, accounting for more than 50 % of the world market for new wind turbines.
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* Major decrease in new installations can be observed in North America and the '''USA lost its number one position''' in total capacity to China.
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* Many Western European countries are showing stagnation, whereas there is strong growth in a number of Eastern European countries.
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* '''Germany''' keeps its number one position in Europe with '''27'215 Megawatt''', followed by Spain with 20'676 Megawatt.
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* The highest shares of wind power can be found in three European countries: '''Denmark (21.0%), Portugal (18.0 %) and Spain (16.0%)'''.
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* '''Asia''' accounted for the largest share of new installations '''(54.6%)''', followed by '''Europe (27.0%)''' and '''North America (16.7 %)'''.
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* '''Latin America (1.2%)''' and '''Africa (0.4%)''' still played only a marginal role in new installations.
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* Africa: North Africa represents still lion share of installed capacity, wind energy plays hardly a role yet in Sub-Sahara Africa.
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* Nuclear disaster in Japan and oil spill in Gulf of Mexico will have long-term impact on the prospects of wind energy. Governments need to urgently reinforce their wind energy policies.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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The regional breakdowns for the period 2009-2030 has been provided for the following three scenarios:
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;# [[Regional Breakdown: Reference scenario (GWEO 2010)]]
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;# [[Regional Breakdown: Moderate scenario (GWEO 2010)]]
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;# [[Regional Breakdown: Advanced scenario (GWEO 2010)]]
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''Note: To know more about the '''[[Forecast Scenarios]]''', [http://dolcera.com/wiki/index.php?title=Forecast_Scenarios click here]''
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==Country-wise Market Distribution==
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* In 2010, the Chinese wind market represented more than half of the world market for new wind turbines adding '''18.9 GW''', which equals a market share of '''50.3%'''.
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* A sharp decrease in new capacity happened in the USA whose share in new wind turbines fell down to '''14.9% (5.6 GW)''', after 25.9% or 9.9 GW in
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the year 2009.
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* '''Nine further countries''' could be seen as major markets, with turbine sales in a range '''between 0.5 and 1.5 GW''': Germany, Spain, India, United
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Kingdom, France, Italy, Canada, Sweden and the Eastern European newcomer Romania.
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* Further, '''12 markets''' for new turbines had a medium size '''between 100 and 500 MW''': Turkey, Poland, Portugal, Belgium, Brazil, Denmark, Japan, Bulgaria, Greece, Egypt, Ireland, and Mexico.
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* By end of 2010, '''20 countries''' had installations of '''more than 1 000 MW''', compared with 17 countries by end of 2009 and 11 countries byend of 2005.
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* Worldwide, '''39 countries''' had wind farms with '''a capacity of 100 Megawatt''' or more installed, compared with 35 countries one year ago, and 24 countries five years ago.
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* The top five countries (USA, China, Germany, Spain and India) represented '''74.2%''' of the worldwide wind capacity, significantly more than 72.9 % in the year.
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* The '''USA and China''' together represented '''43.2%''' of the global wind capacity (up from 38.4 % in 2009).
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* The newcomer on the list of countries using wind power commercially is a Mediterranean country, '''Cyprus''', which for the first time installed a larger grid-connected wind farm, with 82 MW.
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Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]
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The top 10 countries by Total Installed Capacity for the year 2010, is illustrated in the chart below:
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[[Image:Top_Installed_Countries.JPG|center|702*434px|thumb|Top Countries by Market Growth Rates, Source: [http://www.wwindea.org/home/images/stories/pdfs/worldwindenergyreport2010_s.pdf World Wind Energy Report, 2010]]]
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To view the Top 10 countries by different other parameters for the year 2010, click on the links below:
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;# [[Top 10 countries by Total New Installed Capacity]]
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;# [[Top 10 countries by Capacity per Capita (kW/cap)]]
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;# [[Top 10 countries by Capacity per Land Area (kW/sq. km)]]
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;# [[Top 10 countries by Capacity per GDP (kW/ million USD)]]
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To view the '''[[Country-wise Installed Wind Power Capacity]]''' (MW) 2002-2010 (Source: World Wind Energy Association), '''[http://dolcera.com/wiki/index.php?title=Country-wise_Installed_Wind_Power_Capacity click here]'''
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==Country Profiles==
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===China===
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According to the third National Wind Energy Resources
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Census, China’s total exploitable capacity for both land-based
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and offshore wind energy is around 700-1,200 GW.
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Compared to the other leading global wind power markets,
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China’s wind resources are closest to that of the United
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States, and greatly exceed resources in India, Germany or
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Spain.
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<br>'''Market Developments in 2010'''
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<br>Due to varied wind resources across China and differing
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technical and economic conditions, wind power development
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to date has been focused on a few regions and provinces,
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including: Inner Mongolia, the Northwest, the Northeast,
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Hebei Province, the Southeast coast and offshore islands.
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<br>China’s wind market doubled every year between 2006 and
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2009 in terms of total installed capacity, and it has been the
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largest annual market since 2009. In 2010, China overtook the United States as the country with the most installed wind
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energy capacity by adding 16,500 MW* over the course of
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the year, a 64% increase on 2009 in terms of cumulative
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capacity, reaching 42.3 GW in total.
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<br>According to Bloomberg New Energy Finance, the growth in
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installed capacity was driven by a record level of investment
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in wind power in China, which exceeded USD 20 billion in
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2009. In the third quarter of 2010, China’s investment in new
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wind power projects accounted for half of the global total.
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In addition, the Chinese government report “Development
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Planning of New Energy Industry” calculated that the
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cumulative installed capacity of China’s wind power will
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reach 200 GW by 2020 and generate 440 TWh of electricity
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annually, creating more than RMB 250 billion (EUR 28 bn /
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USD 38 bn) in revenue.
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[[Image:China_Capacity.JPG|thumb|centre|1000px|Total Installed Capacity for China]]
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<br>'''Chinese Wind Power Sector'''
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<br>2010 was also an important year for Chinese wind turbine
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manufacturers, as four companies, including Sinovel,
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Goldwind, UnitedPower and Dongfang Electric, are part of
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the world's top ten largest wind turbine manufacturers, and
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are beginning to expand into overseas markets.
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Driven by global development trends, Chinese firms,
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including Sinovel, Goldwind, XEMC, Shanghai Electric Group
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and Mingyang, have entered the competition to manufacture
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wind turbines of 5 MW or more.
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<br>China’s wind power generation market is mainly shared
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among the ’Big Five’ power producers and several other
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major state-owned enterprises. These firms account for more
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than 80% of the total wind power market. The largest wind
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power operators, Guodian (Longyuan Electric Group), Datang
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and Huaneng expanded their capacity by 1-2 GW each during
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the year, while Huadian, Guohua and China Guangdong
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Nuclear Power are following close behind. Most of the local
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state-owned non-energy enterprises, as well as foreignowned
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and private enterprises have retreated from the
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market. Access to finance is generally not a problem for wind
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power projects.
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<br>'''The Renewable Energy Law and the Chinese Feed In Tariff'''
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<br>The breathtaking growth of the Chinese wind energy industry
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has been driven primarily by national renewable energy
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policies. The first Renewable Energy Law entered into force in
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2006, and gave huge momentum to the development of
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renewable energy. In 2007, the first implementation rules for
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the law emerged, giving further impetus to wind energy
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development. In addition, the “Medium and Long-term
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Development Plan for Renewable Energy in China” from 2007
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set out the government’s long term commitment and put
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forward national renewable energy targets, policies and
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measures for implementation, including a mandatory market
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share of 1% of non-hydro renewable energy in the total
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electricity mix by 2010 and 3% by 2020.
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<br>In 2009, the Renewable Energy Law was amended to
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introduce a requirement for grid operators to purchase a
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certain fixed amount of renewable energy. The amendment
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also requires grid companies to absorb the full amount of
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renewable power produced, also giving them the option of
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applying for subsidies from a new “Renewable Energy Fund”
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to cover the extra cost related to integrating renewable
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power if necessary.
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<br>The breathtaking growth of the Chinese wind energy industry
+
−
has been driven primarily by national renewable energy
+
−
policies. The first Renewable Energy Law entered into force in
+
−
2006, and gave huge momentum to the development of
+
−
renewable energy. In 2007, the first implementation rules for
+
−
the law emerged, giving further impetus to wind energy
+
−
development. In addition, the “Medium and Long-term
+
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Development Plan for Renewable Energy in China” from 2007
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set out the government’s long term commitment and put
+
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forward national renewable energy targets, policies and
+
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measures for implementation, including a mandatory market
+
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share of 1% of non-hydro renewable energy in the total
+
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electricity mix by 2010 and 3% by 2020.
+
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In 2009, the Renewable Energy Law was amended to
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introduce a requirement for grid operators to purchase a
+
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certain fixed amount of renewable energy. The amendment
+
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also requires grid companies to absorb the full amount of
+
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renewable power produced, also giving them the option of
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applying for subsidies from a new “Renewable Energy Fund”
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to cover the extra cost related to integrating renewable
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power if necessary.
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<br>'''Grid Connection Problem'''
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<br>The rapid development of wind power in China has put
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unprecedented strain on the country’s electricity grid
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infrastructure. This has become the biggest problem for the
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future development of wind power in the country, as some
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projects have to wait for several months before being
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connected to the national grid.
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<br>There are reports that a large share of China’s wind power
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capacity is not grid connected, but this is based on a
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fundamental misunderstanding, which has its source in the
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methodology used for calculating installed capacity. The
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Chinese Federation of Power Generation, which provides
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China’s energy statistics, only counts wind farms as operational from the moment that the last turbine of a
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project has become grid-connected. However, in reality, most
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of the installed wind turbines of a project are connected to
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the grid and generating power much earlier. This explains the
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much reported “gap” between installation and grid
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connection which is often reported from China. In other
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markets, it is common practice to include all turbines that are
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grid connected, whether or not they constitute a completed
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wind farm.
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<br>Due to a lack of incentives, Chinese grid companies have
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been reluctant to accept large amounts of wind power into
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their systems. However, they have recently reached an
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agreement to connect 80 GW of wind power by 2015 and
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150 GW by 2020. According to figures by the State Grid, at
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the end of 2010, 40 billion RMB (EUR 4.5 bn / USD 6.1 bn)
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had been invested to facilitate wind power integration into
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the national power grid.
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<br>'''Outlook 2011 & Beyond'''
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<br>Despite its rapid and seemingly unhampered expansion, the
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Chinese wind power sector continues to face significant
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challenges, including issues surrounding grid access and
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integration, reliability of turbines and a coherent strategy for
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developing China’s offshore wind resource. These issues will
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be prominent during discussions around the twelfth Five-Year
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Plan, which will be passed in March 2011. According to the
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draft plan, this is expected to reflect the Chinese
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government’s continuous and reinforced commitment to
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wind power development, with national wind energy targets
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of 90 GW for 2015 and 200 GW for 2020.
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===India===
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India had a record year for new wind energy installations in
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2010, with 2,139 MW of new capacity added to reach a total
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of 13,065 MW at the end of the year. Renewable energy is
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now 10.9% of installed capacity, contributing about 4.13% to
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the electricity generation mix, and wind power accounts for
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70% of this installed capacity. Currently the wind power
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potential estimated by the Centre for Wind Energy
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Technology (C-WET) is 49.1 GW, but the estimations of
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various industry associations and the World Institute for
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Sustainable Energy (WISE) and wind power producers are
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more optimistic, citing a potential in the range of 65-
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100 GW.
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<br>Historically, actual power generation capacity additions in
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the conventional power sector in India been fallen
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significantly short of government targets. For the renewable
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energy sector, the opposite has been true, and it has shown a
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tendency towards exceeding the targets set in the five-year
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plans. This is largely due to the booming wind power sector.
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Given that renewable energy was about 2% of the energy
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mix in 1995, this growth is a significant achievement even in
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comparison with most developed countries. This was mainly
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spurred by a range of regulatory and policy support measures
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for renewable energy development that were introduced
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through legislation and market based instruments over the
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past decade.
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<br>The states with highest wind power concentration are Tamil
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Nadu, Maharashtra, Gujarat, Rajasthan, Karnataka, Madhya
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Pradesh and Andhra Pradesh.
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+
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<br>'''Main market developments in 2010'''
+
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<br>Today the Indian market is emerging as one of the major
+
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manufacturing hubs for wind turbines in Asia. Currently,
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seventeen manufacturers have an annual production capacity
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of 7,500 MW. According to the WISE, the annual wind turbine
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manufacturing capacity in India is likely to exceed
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17,000 MW by 2013.
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<br>The Indian market is expanding with the leading wind
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companies like Suzlon, Vestas, Enercon, RRB Energy and GE
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now being joined by new entrants like Gamesa, Siemens, and
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WinWinD, all vying for a greater market share. Suzlon, however,
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is still the market leader with a market share of over 50%.
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<br>The Indian wind industry has not been significantly affected
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by the financial and economic crises. Even in the face of a
+
−
global slowdown, the Indian annual wind power market has
+
−
grown by almost 68%. However, it needs to be pointed out
+
−
that the strong growth in 2010 might have been stimulated
+
−
by developers taking advantage of the accelerated
+
−
depreciation before this option is phased out.
+
−
 
+
−
[[Image:India_capacity.JPG|thumb|centre|1000px|Total Installed Capacity for India]]
+
−
 
+
−
<br>'''Policy support for wind power in India'''
+
−
<br>Since the 2003 Electricity Act, the wind sector has registered
+
−
a compound annual growth rate of about 29.5%. The central
+
−
government policies have provided policy support for both
+
−
foreign and local investment in renewable energy
+
−
technologies. The key financial incentives for spurring wind
+
−
power development have been the possibility to claim
+
−
accelerated depreciation of up to 80% of the project cost
+
−
within the first year of operation and the income tax holiday
+
−
on all earnings generated from the project for ten
+
−
consecutive assessment years.
+
−
<br>In December 2009 the Ministry for New and Renewable
+
−
Energy (MNRE) approved a Generation Based Incentive (GBI)
+
−
scheme for wind power projects, which stipulated that an
+
−
incentive tariff of Rs 0.50/kWh (EUR 0.8 cents/USD 1.1 cents)
+
−
would be given to eligible projects for a (maximum) period of
+
−
ten years. This scheme is currently valid for wind farms
+
−
installed before 31 March 2012. However, the GBI and the
+
−
accelerated depreciation are mutually exclusive and a
+
−
developer can only claim concessions under one of them for the same project. Although the projected financial outlay for
+
−
this scheme under the 11th Plan Period (2007-2012) is
+
−
Rs 3.8 billion (EUR 61 million/USD 84 million), the uptake of
+
−
the GBI has been slow due to the fact that at the current rate
+
−
it is still less financially attractive than accelerated
+
−
depreciation.
+
−
<br>Currently 18 of the 25 State Electricity Regulatory
+
−
Commissions (SERCs) have issued feed-in tariffs for wind
+
−
power. Around 17 SERCs have also specified state-wide
+
−
Renewable Purchase Obligations (RPOs). Both of these
+
−
measures have helped to create long-term policy certainty
+
−
and investor confidence, which have had a positive impact on
+
−
the wind energy capacity additions in those states.
+
−
 
+
−
<br>'''Support framework for wind energy'''
+
−
<br>There has been a noticeable shift in Indian politics since the
+
−
adoption of the Electricity Act in 2003 towards supporting
+
−
research, development and innovation in the country’s
+
−
renewable energy sector. In 2010, the Indian government
+
−
clearly recognised the role that renewable energy can play in
+
−
reducing dependence on fossil fuels and combating climate
+
−
change, and introduced a tax (“cess”) of Rs.50 (~USD1.0) on
+
−
every metric ton of coal produced or imported into India. This
+
−
money will be used to contribute to a new Clean Energy Fund.
+
−
In addition, the MNRE announced its intention to establish a
+
−
Green Bank by leveraging the Rs 25 billion (EUR 400 million /
+
−
USD 500 million) expected to be raised through the national
+
−
Clean Energy Fund annually. The new entity would likely work
+
−
in tandem with the Indian Renewable Energy Development
+
−
Agency (IREDA), a government-owned non-banking financial
+
−
company.
+
−
<br>In keeping with the recommendations of the National Action
+
−
Plan on Climate Change (NAPCC) the MNRE and the Central
+
−
Electricity Regulatory Commission (CERC) have evolved a
+
−
framework for implementation of the Renewable Energy
+
−
Certificate (REC) Mechanism for India.1 This is likely to give
+
−
renewable energy development a further push in the coming
+
−
years, as it will enable those states that do not meet their
+
−
RPOs through renewable energy installations to fill the gap
+
−
through purchasing RECs.
+
−
 
+
−
<br>'''Obstacles for wind energy development'''
+
−
<br>With the introduction of the Direct Tax Code2, the
+
−
government aims to modernize existing income tax laws.
+
−
Starting from the fiscal year 2011-12, accelerated
+
−
depreciation, the key instrument for boosting wind power
+
−
development in India, may no longer be available.
+
−
Another limitation to wind power growth in India is
+
−
inadequate grid infrastructure, especially in those states with
+
−
significant wind potential, which are already struggling to
+
−
integrate the large amounts of wind electricity produced. As
+
−
a result, the distribution utilities are hesitant to accept more
+
−
wind power. This makes it imperative for CERC and SERCs to
+
−
take immediate steps toward improved power evacuation
+
−
system planning and providing better interface between
+
−
regional grids. The announcement of India’s Smart Grid Task
+
−
Force by the Ministry of Power is a welcome first step in this
+
−
direction.
+
−
 
+
−
==Market Share Analysis==
+
−
===Global Market Share===
+
−
* Vestas leads the Global Market in the 2010 with a 12% market share according to Make Consulting, while BTM Consulting reports it to have a 14.8% market share.
+
−
* According to Make Consulting, the global market share of Vestas has decreased from 19% in 2008, to 14.5% in 2009, to 12% in 2010.
+
−
* According to BTM Consulting, the global market share of Vestas has changed from 19% in 2008, to 12% in 2009, to 14.8% in 2010.
+
−
* According to Make Consulting, the global market share of GE Energy has decreased from 18% in 2008, to 12.5% in 2009, to 10% in 2010.
+
−
* The market share of world no. 2 Sinovel, has been constantly increasing, from 5% in 2008 , to 9.3% in 2009, to 11% in 2010
+
−
* The top 5 companies have been occupying more than half of the Global Market Share from 2008 to 2010
+
−
 
+
−
Source: [http://www.make-consulting.com Make Consulting], [http://www.btmgcs.com/ BTM Global Consulting]
+
−
 
+
−
The chart given below illustrates the Global Market Share Comparison of Major Wind Energy Companies for the period 2008-2010, as provided by two different agencies, Make Consulting and BTM Consulting:
+
−
[[Image:Market_Share_Comparison.JPG|center|1171*459px|thumb|Global Market Share Comparison of Major Companies for the period 2008-2010
+
−
, Source: [http://www.make-consulting.com Make Consulting], [http://www.btmgcs.com/ BTM Global Consulting]]]
+
  
−
===Market Share - Top 10 Markets===
+
{|border="2" cellspacing="0" cellpadding="4" width="55%" align="center"
−
* While Vestas is the Global Leader, it is the leader in only one of Top 10 markets, which is 10<sup>th</sup> placed Sweden
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Head Office'''</font>
−
* But, Vestas is ranked 2<sup>nd</sup> in 5 of Top 10 markets
+
|One Earth , Opp. Magarpatta City<br>Hadapsar<br>Pune 411 028<br>India
−
* Sinovel, ranked 2<sup>nd</sup> globally, features only once in the Top 3 Companies list in the Top 10 markets, but scores globally because it leads the largest market China
+
−
* The table given below illustrates the Top 3 players in Top 10 Wind Energy Markets of the world:
+
−
{|border="2" cellspacing="0" cellpadding="4" width="50%" align="center"
+
−
|bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Market'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''MW'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 1'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 2'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. 3'''</font>
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''China'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Phone'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|18928
+
|91 20 4012 2000
−
|align = "center" bgcolor = "#DBE5F1"|Sinovel
+
−
|align = "center" bgcolor = "#DBE5F1"|Goldwind
+
−
|align = "center" bgcolor = "#DBE5F1"|Dongfang
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''USA'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Fax'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|5115
+
|91 20 4012 2100
−
|align = "center" bgcolor = "#DBE5F1"|GE Energy
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|Siemens
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''India'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Web Address'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|2139
+
|[http://www.suzlon.com/ http://www.suzlon.com]
−
|align = "center" bgcolor = "#DBE5F1"|Suzlon
+
−
|align = "center" bgcolor = "#DBE5F1"|Enercon
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''Germany'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''<nowiki> </nowiki> Employees'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|1551
+
|16000
−
|align = "center" bgcolor = "#DBE5F1"|Enercon
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|Suzlon
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''UK'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Turnover (US $M)'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|1522
+
|4330
−
|align = "center" bgcolor = "#DBE5F1"|Siemens
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|Gamesa
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''Spain'''
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Financial Year End'''</font>
−
|align = "center" bgcolor = "#DBE5F1"|1516
+
|March
−
|align = "center" bgcolor = "#DBE5F1"|Gamesa
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|GE Energy
+
 
|-
 
|-
−
|bgcolor = "#DBE5F1"|'''France'''
+
|}
−
|align = "center" bgcolor = "#DBE5F1"|1186
+
===Key Financials===
−
|align = "center" bgcolor = "#DBE5F1"|Enercon
+
−
|align = "center" bgcolor = "#DBE5F1"|Suzlon
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|-
+
−
|bgcolor = "#DBE5F1"|'''Italy'''
+
−
|align = "center" bgcolor = "#DBE5F1"|948
+
−
|align = "center" bgcolor = "#DBE5F1"|Gamesa
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|Suzlon
+
−
|-
+
−
|bgcolor = "#DBE5F1"|'''Canada'''
+
−
|align = "center" bgcolor = "#DBE5F1"|690
+
−
|align = "center" bgcolor = "#DBE5F1"|Siemens
+
−
|align = "center" bgcolor = "#DBE5F1"|GE Energy
+
−
|align = "center" bgcolor = "#DBE5F1"|Enercon
+
−
|-
+
−
|bgcolor = "#DBE5F1"|'''Sweeden'''
+
−
|align = "center" bgcolor = "#DBE5F1"|604
+
−
|align = "center" bgcolor = "#DBE5F1"|Vestas
+
−
|align = "center" bgcolor = "#DBE5F1"|Enercon
+
−
|align = "center" bgcolor = "#DBE5F1"|Siemens
+
−
|-
+
−
|align = "center" bgcolor = "#DBE5F1" colspan = "5"|''Source: BTM Consult - part of Navigant Consulting - March 2011''
+
−
|-
+
−
|}<br clear="all">
+
  
−
Source: [http://www.btm.dk/reports/world+market+update+2010 BTM Consult]
+
[[Image:Suzlon1.jpg|thumb|center|600*400 px]]
  
−
==Company Profiles==
+
<br>
  
−
# '''[[Vestas Wind Systems A/S]]'''
+
Source: [http://www.ismcapital.com/images/news/ISM%20Capital_Suzlon_Tilting%20at%20Windmills.pdf IMS Capital Report]
−
# '''[[Suzlon Energy]]'''
+
  
−
==Products of Top Companies==
+
==Business Overview==
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
Suzlon's wind energy business traces its roots back to the incorporation of Suzlon Energy Limited in 1995 by the venture of Mr. Tulsi R. Tanti. The company along with its subsidiaries engages in designing, developing and manufacturing of wind turbine generators and related components such as rotor blades, control panels, nacelle cover, tubular towers, generators and gearboxes. Further, the company also provides consultancy, design, manufacturing, installation, operation and maintenance services as well as is involved in wind resource mapping, identification of suitable sites and technical planning of wind power projects. The company principally operates in India, China, The Americas, Europe, New Zealand, South Korea, South Africa and Australia. <br>
−
|align = "center" bgcolor = "#4F81BD" width=”38”|<font color="#FFFFFF">'''S. No.'''</font>
+
The company has forged ahead with an ethos of innovation in everything that it does. This has led to pioneering approaches and offerings such as a fully vertically-integrated value chain, leveraging local expertise and global experience, an 'end-to-end solutions' model and highly customized products – all contributing to make Suzlon the highest-growth, highest-margin wind turbine maker in a highly competitive environment. Suzlon's design, manufacture, operations and maintenance services have been certified as ISO 9001:2000 by Det Norske Veritas. It has a strong presence in the BSE as well as a part of S&P CNX Nifty Index (NSE) that shows investors’ satisfaction towards the company and the stability of its stock in the financial market.
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Company'''</font>
+
===Product & Services===
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Product'''</font>
+
'''Product Portfolio'''
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Specifications'''</font>
+
*Wind Turbine Generator, Low to Medium capacity (350 kW – 2.1 MW)
−
|-valign="top"
+
*Wind Turbine Generator, Medium to High capacity (1.5 MW – 5 MW)
−
|align = "center" bgcolor = "#DCE6F1"|1
+
*Wind Turbine Generator Gearbox (500 kW – 6 MW; 160 – 3,500 kNm)
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
'''Service Portfolio'''
−
|bgcolor = "#DCE6F1"|V80
+
*Wind Resource Mapping
−
|bgcolor = "#DCE6F1"|'''Rated Power: '''2.0 MW, '''Frequency:''' 50 Hz/60 Hz, '''Number of Poles:''' 4-pole, '''Operating Temperature: -'''30°C to 40°
+
*Identification & Procurement of Sites
−
|- valign="top"
+
*Execution of Project Work
−
|align = "center"|2
+
*Erection & Commissioning of Wind Turbine Generators
−
|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
*Construction of Power Evacuation Facilities
−
|V90
+
*Operation & Maintenance Services
−
|'''Rated Power:''' 1.8/2.0 MW, '''Frequency :''' 50 Hz/60 Hz, '''Number of Poles :''' 4-pole(50 Hz)/6-pole(60 Hz), '''Operating Temperature: -'''30°C to 40°
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|3
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.vestas.com/en/wind-power-plants/procurement/turbine-overview/v80-2.0-mw.aspx#/vestas-univers Vestas]</u></font>
+
−
|bgcolor = "#DCE6F1"|V90 Offshore
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 3.0 MW, '''Frequency:''' 50 Hz/60 Hz, '''Number of Poles:''' 4-pole, '''Operating Temperature: '''-30°C to 40°
+
−
|- valign="top"
+
−
|align = "center"|4
+
−
|<font color="#0000FF"><u>[http://www.china-windturbine.com/news/doubly_wind_turbines.htm North Heavy Company]</u></font>
+
−
|2 MW DFIG
+
−
|'''Rated Power:''' 2.0 MW, '''Rated Voltage:''' 690V, '''Rated Current:''' 1670A, '''Frequency:''' 50Hz, '''Number of Poles :''' 4-pole, '''Rotor Rated Voltage:''' 1840V, '''Rotor Rated Current''' 670A, '''Rated Speed:''' 1660rpm;''' Power Speed Range: '''520-1950 rpm, '''Insulation Class:''' H, '''Protection Class:''' IP54, '''Motor Temperature Rise''' =<nowiki><</nowiki>95K
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://docs.google.com/viewer?a=v&q=cache:X9KReq0YEigJ:www.iberdrolarenewables.us/bluecreek/docs/primary/03-Appendices/_Q-Brochure-of-G-90-Turbine/Brochure-G-90-Turbine.pdf+gamesa+g90&hl=en&pid=bl&srcid=ADGEESgldaLogi1i5Pg71zE-FO_AMqbeKL5wJiA8LVklgq5ev2in Gamesa]</u></font>
+
−
|bgcolor = "#DCE6F1"|G90
+
−
|bgcolor = "#DCE6F1"|'''Rated Voltage:''' 690 V, '''Frequency:''' 50 Hz,  '''Number of Poles:''' 4,  '''Rotational Speed:''' 900:1,900 rpm (rated 1,680 rpm) (50Hz); '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class:''' IP 54, '''Power Factor(standard):'''  0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power Factor(Optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
−
|- valign="top"
+
−
|align = "center"|6
+
−
|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
−
| N80
+
−
|'''Rated Power:''' 2.5 MW, '''Rated Voltage:''' 690V, '''Frequency:''' 50/60Hz, '''Cooling Systems:''' liquid/air
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|7
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
−
|bgcolor = "#DCE6F1"| N90
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 2.5 MW, '''Rated Voltage: '''690V,''' Frequency: '''50/60Hz,''' Cooling Systems: '''liquid/air
+
−
|- valign="top"
+
−
|align = "center"|8
+
−
|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
−
|N100
+
−
|'''Rated Power:''' 2.4 MW, '''Rated Voltage: '''690V, '''Frequency: '''50/60Hz, '''Cooling Systems: '''liquid/air
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|9
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.nordex-online.com/en/products-services/wind-turbines/n100-25-mw Nordex]</u></font>
+
−
|bgcolor = "#DCE6F1"| N117
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 2.5 MW, '''Rated Voltage: '''690V, '''Frequency: '''50/60Hz, '''Cooling Systems: '''liquid/air
+
−
|- valign="top"
+
−
|align = "center"|10
+
−
|<font color="#0000FF"><u>[http://www.converteam.com/majic/pageServer/1704040148/en/index.html Converteam]</u></font>
+
−
|DFIG
+
−
|NA
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|11
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://geoho.en.alibaba.com/product/252321923-0/1_5MW_doubly_fed_asynchronous_generator.html Xian Geoho Energy Technology]</u></font>
+
−
|bgcolor = "#DCE6F1"|1.5MW DFIG
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1550KW,  '''Rated Voltage: '''690V, '''Rated Speed: '''1755 r/min, '''Speed Range: '''975<nowiki>~</nowiki>1970 r/min, '''Number of Poles: '''4-pole, '''Stator Rated Voltage: '''690V±10%, '''Stator Rated Current: '''1115A; '''Rotor Rated Voltage: '''320V, '''Rotor Rated Current: '''430A, '''Winding Connection: '''Y / Y, '''Power Factor: '''0.95(Lead) <nowiki>~</nowiki> 0.95Lag,''' Protection Class: '''IP54, '''Insulation Class: '''H, '''Work Mode: '''S1, '''Installation ModeI: '''M B3, '''Cooling Mode: '''Air cooling,  '''Weight: '''6950kg
+
−
|- valign="top"
+
−
|align = "center"|12
+
−
|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
−
|TW450XX (0.5-1 KW)
+
−
|'''Rated Power:''' 0.5 -1 KW, '''Rated Voltage: '''460/ 575/ 690 V, '''Frequency: '''50/ 60 Hz, '''Number of Poles: '''4/6,''' Ambient Temp.(°C): -'''40 to 50, '''Speed Range (% of Synch. Speed): '''68% to 134%,  '''Power Factor (Leading): -'''0.90 to <nowiki>+</nowiki>0.90 , '''Insulation Class: '''H/F, '''Efficiency: '''<nowiki>></nowiki>= 96%
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|13
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
−
|bgcolor = "#DCE6F1"|TW500XX (1-2 KW)
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1-2 kW,''' Rated Voltage:''' 460/ 575/ 690 V, '''Frequency:''' 50/ 60 Hz, '''Number of Poles:''' 4/6, Ambient Temp.(°C): -40 to 50; '''Speed Range (% of Synch. Speed):''' 68 to 134%, '''Power Factor(Leading): -'''0.90 to <nowiki>+</nowiki>0.90, '''Insulation Class: '''H/F, '''Efficiency:''' <nowiki>></nowiki>= 96%
+
−
|- valign="top"
+
−
|align = "center"|14
+
−
|<font color="#0000FF"><u>[http://www.tecowestinghouse.com/products/custom_engineered/DF_WR_ind_generator.html Tecowestinghouse]</u></font>
+
−
|TW560XX (2-3 KW)
+
−
|'''Rated Power: '''2-3kW, '''Rated Voltage: '''460/ 575/ 690 V, '''Frequency: '''50/ 60 Hz, '''Number of Poles: '''4/6, '''Ambient Temp(°C): ''' -40 to 50, '''Speed Range(% of Synch. Speed)''':''' '''68 to 134%, '''Power Factor(Leading):''' -0.90 to <nowiki>+</nowiki>0.90, '''Insulation Class: '''H/F, '''Efficiency:''' <nowiki>></nowiki>= 96%.
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|15
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.acciona-na.com/About-Us/Our-Projects/U-S-/West-Branch-Wind-Turbine-Generator-Assembly-Plant.aspx Acciona]</u></font>
+
−
|bgcolor = "#DCE6F1"|AW1500
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1.5MW, '''Rated Voltage: '''690 V, '''Frequency: '''50 Hz, '''Number of Poles: '''4,  '''Rotational Speed: '''900:1,900 rpm(rated 1,680 rpm) (50Hz), '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class: '''IP54, '''Power Factor(standard): '''0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power factor(optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
−
|- valign="top"
+
−
|align = "center"|16
+
−
|<font color="#0000FF"><u>[http://www.acciona-na.com/About-Us/Our-Projects/U-S-/West-Branch-Wind-Turbine-Generator-Assembly-Plant.aspx Acciona]</u></font>
+
−
|AW3000
+
−
|'''Rated Power:''' 3.0MW, '''Rated Voltage: ''' 690 V, '''Frequency: '''50 Hz, '''Number of Poles: '''4, '''Rotational Speed: '''900:1,900 rpm(rated 1,680 rpm) (50Hz), '''Rated Stator Current: '''1,500 A @ 690 V, '''Protection Class: '''IP54, '''Power Factor(standard): '''0.98 CAP - 0.96 IND at partial loads and 1 at nominal power, '''Power Factor (optional):''' 0.95 CAP - 0.95 IND throughout the power range
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|17
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://gepower.com/businesses/ge_wind_energy/en/index.htm General Electric]</u></font>
+
−
|bgcolor = "#DCE6F1"|GE 1.5/2.5MW
+
−
|bgcolor = "#DCE6F1"|'''Rated Power:''' 1.5/2.5 MW, '''Frequency(Hz): '''50/60
+
−
|-
+
−
|}
+
  
−
= IP Search & Analysis =
+
===Geographic Presence===
−
== Doubly-fed Induction Generator: Search Strategy ==
+
[[Image:Location.jpg|900px|center]]
−
The present study on the IP activity in the area of horizontal axis wind turbines with focus on '''''Doubly-fed Induction Generator (DFIG)''''' is based on a search conducted on Thomson Innovation.  
+
−
===Control Patents===
+
  
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
===Organization Structure===
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
[[Image:Org chart.jpg|Center]]
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
+
<br>
−
|align = "center" bgcolor = "#4F81BD" width="15%"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|1
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6278211.PN.&OS=PN/6278211&RS=PN/6278211 US6278211]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|08/02/01
+
−
|bgcolor = "#DCE6F1"|Sweo Edwin
+
−
|bgcolor = "#DCE6F1"|Brush-less doubly-fed induction machines employing dual cage rotors
+
−
|- valign="top"
+
−
|align = "center"|2
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6954004.PN.&OS=PN/6954004&RS=PN/6954004 US6954004]</u></font>
+
−
|align = "center"|10/11/05
+
−
|Spellman High Voltage Electron
+
−
|Doubly fed induction machine
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|3
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7411309.PN.&OS=PN/7411309&RS=PN/7411309 US7411309]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|08/12/08
+
−
|bgcolor = "#DCE6F1"|Xantrex Technology
+
−
|bgcolor = "#DCE6F1"|Control system for doubly fed induction generator
+
−
|- valign="top"
+
−
|align = "center"|4
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7485980.PN.&OS=PN/7485980&RS=PN/7485980 US7485980]</u></font>
+
−
|align = "center"|02/03/09
+
−
|Hitachi
+
−
|Power converter for doubly-fed power generator system
+
−
|- valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|align = "center" bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7800243.PN.&OS=PN/7800243&RS=PN/7800243 US7800243]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|09/21/10
+
−
|bgcolor = "#DCE6F1"|Vestas Wind Systems
+
−
|bgcolor = "#DCE6F1"|Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
+
−
|- valign="top"
+
−
|align = "center"|6
+
−
|align = "center"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7830127.PN.&OS=PN/7830127&RS=PN/7830127 US7830127]</u></font>
+
−
|align = "center"|11/09/10
+
−
|Wind to Power System
+
−
|Doubly-controlled asynchronous generator
+
−
|-
+
−
|}
+
  
−
===Patent Classes===
+
===Mergers & Acquisitions===
 +
[[Image:Investment Details.jpg|700px|center]]
 +
'''Source: Suzlon Valuation Analyst Report'''
 +
<br>
  
 +
===Order Book===
 +
[[Image:order book.jpg|center]]
 +
(*Exchange rate: 1st February 2011: 1 EUR= 1.3742 USD, 1 USD= 45.7950 INR)
 +
<br>'''Source: Factiva News Articles, Analyst Reports'''
 +
<br>
 +
===Client Base in Key Markets===
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
{|border="2" cellspacing="0" cellpadding="4" width="100%"
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|align = "center" bgcolor = "#C5D9F1"|'''India'''
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class No.'''</font>
+
|align = "center" bgcolor = "#C5D9F1"|'''USA'''
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Class Type'''</font>
+
|align = "center" bgcolor = "#C5D9F1"|'''China'''
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Definition'''</font>
+
|align = "center" bgcolor = "#C5D9F1"|'''Australia/NewZealand'''
−
|-valign="top"
+
|align = "center" bgcolor = "#C5D9F1"|'''Europe & South America'''
−
|align = "center" bgcolor = "#DCE6F1"|1
+
|-
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=F03D0009000000 F03D9/00 ]</u></font>
+
|Tata Power<br>Bajaj Auto<br>Essel Mining<br>MSPL<br>ONGC
−
|bgcolor = "#DCE6F1"|IPC
+
|John Deere Credit<br>Edison Mission Group<br>PPM Energy<br>Horizon Wind<br>Duke Energy
−
|bgcolor = "#DCE6F1"|Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for / Wind motors / '''Adaptations of wind motors for special use; Combination of wind motors with apparatus driven thereby (aspects predominantly concerning driven apparatus) '''
+
|Huaneng Shandong<br>Guohua<br>Datang<br>Honiton<br>Jingneng<br>North Union Power
−
|-valign="top"
+
|Australia Gas & Light<br>TrustPower<br>Renewable Power Ventures <br>Pacific Hydro
−
|align = "center"|2
+
|SIIF Energies do Brasil Ltda (SIIF)<br>Servtec Instalacoses<br>NeoAnemos Srl<br>Techneira S.A.<br>Energi Kontoret<br>Martifer Energy Systems<br>Iniciativas Energetitas<br>Eólia Renovables group<br>Spanish Savings Bank Unicaja<br>Ayen Enerji
−
|<font color="#0000FF"><u>[http://v3.espacenet.com/eclasrch?classification=ecla&locale=en_EP&ECLA=f03d9/00c F03D9/00C ]</u></font>
+
−
|ECLA
+
−
|Machines or engines for liquids; wind, spring, or weight motors; producing mechanical power or a reactive propulsive thrust, not otherwise provided for / Wind motors / Adaptations of wind motors for special use; Combination of wind motors with apparatus driven thereby (aspects predominantly concerning driven apparatus) /''' The apparatus being an electrical generator '''
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|3
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#&refresh=page&notion=scheme&version=20110101&symbol=H02J0003380000 H02J3/38 ]</u></font>
+
−
|bgcolor = "#DCE6F1"|IPC
+
−
|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / Circuit arrangements or systems for supplying or distributing electric power; systems for storing electric energy / Circuit arrangements for ac mains or ac distribution networks / '''Arrangements for parallely feeding a single network by two or more generators, converters or transformers '''
+
−
|-valign="top"
+
−
|align = "center"|4
+
−
|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=H02K0017420000 H02K17/42 ]
+
−
</u></font>
+
−
|IPC
+
−
|Generation, conversion, or distribution of electric power / Dynamo-electric machines / Asynchronous induction motors; Asynchronous induction generators / '''Asynchronous induction generators '''
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/ipcpub/#refresh=page&notion=scheme&version=20110101&symbol=H02P0009000000 H02P9/00 ]</u></font>
+
−
|bgcolor = "#DCE6F1"|IPC
+
−
|bgcolor = "#DCE6F1"|Generation, conversion, or distribution of electric power / Control or regulation of electric motors, generators, or dynamo-electric converters; controlling transformers, reactors or choke coils /''' Arrangements for controlling electric generators for the purpose of obtaining a desired output '''
+
−
|-valign="top"
+
−
|align = "center"|6
+
−
|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc290/sched290.htm#C290S044000 290/044]</u></font>
+
−
|USPC
+
−
|Prime-mover dynamo plants / electric control / Fluid-current motors / '''Wind '''
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|7
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc290/sched290.htm#C290S055000 290/055]</u></font>
+
−
|bgcolor = "#DCE6F1"|USPC
+
−
|bgcolor = "#DCE6F1"|Prime-mover dynamo plants / Fluid-current motors / '''Wind'''
+
−
|-valign="top"
+
−
|align = "center"|8
+
−
|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc318/sched318.htm#C318S727000 318/727]</u></font>
+
−
|USPC
+
−
|Electricity: motive power systems / '''Induction motor systems '''
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|9
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.uspto.gov/web/patents/classification/uspc322/sched322.htm#C322S047000 322/047]</u></font>
+
−
|bgcolor = "#DCE6F1"|USPC
+
−
|bgcolor = "#DCE6F1"|Electricity: single generator systems / Generator control / '''Induction generator '''
+
 
|-
 
|-
 
|}
 
|}
 +
'''Source: BTM Consult'''
 +
<br>
  
−
===Concept Table===
+
==Market Overview==
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
===Market Share===
−
|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
[[Image:Market Position1.jpg|700px|center]]
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 1'''</font>
+
(*Suzlon 6.9% plus RE Power 2%)<br>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 2'''</font>
+
'''Source:BTM Consult'''<br>
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept 3'''</font>
+
*Market Share of Suzlon Wind Energy for 3 years from different sources (Excluding RE Power)
 +
{|border="2" cellspacing="0" cellpadding="4" width="47%" align = "center"
 +
|bgcolor = "#C5D9F1"|'''Source'''
 +
|align = "right" bgcolor = "#C5D9F1"|'''2010'''
 +
|align = "right" bgcolor = "#C5D9F1"|'''2009'''
 +
|align = "right" bgcolor = "#C5D9F1"|'''2008'''
 
|-
 
|-
−
|align = "center" bgcolor = "#95B3D7"|'''Doubly Fed'''
+
|'''BTM Consult'''
−
|align = "center" bgcolor = "#95B3D7"|'''Induction'''
+
|align = "right"|6.9
−
|align = "center" bgcolor = "#95B3D7"|'''Generator'''
+
|align = "right"|6.4
 +
|align = "right"|7
 
|-
 
|-
−
|align = "center" bgcolor = "#DCE6F1"|1
+
|'''Make Consulting'''
−
|bgcolor = "#DCE6F1"|doubly fed
+
|align = "right"|6
−
|bgcolor = "#DCE6F1"|induction
+
|align = "right"|5.8
−
|bgcolor = "#DCE6F1"|generator
+
|align = "right"|7
 
|-
 
|-
−
|align = "center"|2
+
|}
−
|double output
+
<br><br>
−
|asynchronous
+
 
−
|machines
+
===Share by Geography===
 +
*'''India'''
 +
Suzlon is the dominant provider in India, with a 50% market share in 2009. Enercon and Vestas have aggressively
 +
targeted the Indian market over the past 3 years, in part driven by the slowdown in developed markets. Suzlon has maintained
 +
its share. In India, many of Suzlon’s customers are small in size, and Suzlon provides the land as well as the infrastructure. This
 +
land bank of premium sites is an important barrier to entry.
 +
<br><br>
 +
*'''Brazil'''
 +
Suzlon is market leader in Brazil with a 50% share. ''Source:MAKE Consulting Report''
 +
<br><br>
 +
*'''China'''
 +
Chinese providers (Sinovel, Goldwind and DongFang Electric) are expected to continue to dominate the Chinese market. Suzlon
 +
has launched a price competitive product to compete with local players. A small market share would have a material impact on
 +
Suzlon due to the large size of the addressable market. Suzlon said in August 2010 that it hopes to generate up to 1/3 of its
 +
revenues from China, although it subsequently appears to have reduced this emphasis. The presence of Chinese companies
 +
outside China is minimal, held back by the perception that they produce low price, but low quality turbines.
 +
<br><br>
 +
===Competitive Advantage===
 +
Integration is a key advantage for Suzlon, setting it apart from most of its competitors. This helps to maintain quality standards
 +
and compatibility and is particularly important for gearboxes. Suzlon remains the dominant shareholder in Hansen and the two
 +
companies have long term supply agreements in place. Hansen is also developing a customised gearbox for RePower. If Suzlon
 +
sells its stake in Hansen, some of this advantage may be eroded.<br>
 +
[[Image:Competencies.jpg|center]]
 +
'''Source:Analyst Reports'''
 +
<br>
 +
===Strategic Position===
 +
[[Image:Strategic position.jpg|center]]
 +
'''Source:Analyst Reports'''
 +
===SWOT Analysis===
 +
{|border="2" cellspacing="0" cellpadding="4" width="55%" align = "center"
 +
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Strengths'''</font>
 +
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Weaknesses'''</font>
 
|-
 
|-
−
|align = "center" bgcolor = "#DCE6F1"|3
+
|1. Integrated business model<br>2. In house technology and design capabilities<br>3. Market leadership in India and global presence<br>4. Prudent acquisitions and alliances<br>5. Global production<br>6. Pricing power<br>7. Diversified product line
−
|bgcolor = "#DCE6F1"|dual fed
+
|1. Operational risk<br>2. Growth in assets diminishing  growth in profits<br>3. Unsupportive stock prices<br>4. Unfavorable ratings<br>5. Improper working capital management<br>6. Weak strategic financial management<br>
−
|bgcolor = "#DCE6F1"|
+
−
|bgcolor = "#DCE6F1"|systems
+
 
|-
 
|-
−
|align = "center"|4
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Opportunities'''</font>
−
|dual feed
+
|align = "center" bgcolor = "#CCCCFF"|<font color="#000000">'''Threats'''</font>
−
|
+
−
|  
+
 
|-
 
|-
−
|align = "center" bgcolor = "#DCE6F1"|5
+
|1. Environmental awareness<br>2. Government initiatives<br>3. Untapped offshore market<br>4. Steady growth in demand<br>5. Vast coastlines of India and low cost
−
|bgcolor = "#DCE6F1"|dual output
+
|1. Intense competition<br>2. Foreign exchange risk<br>3. Technology risk<br>4. Objections to wind power<br>
−
|bgcolor = "#DCE6F1"|
+
−
|bgcolor = "#DCE6F1"|
+
 
|-
 
|-
 
|}
 
|}
  
−
===Thomson Innovation Search===
+
==Recent Developments==
−
'''Database:''' Thomson Innovation<br>
+
{|border="2" cellspacing="0" cellpadding="4" width="90%" align = "center"
−
'''Patent coverage:''' US EP WO JP DE GB FR CN KR DWPI<br>
+
|align = "center" bgcolor = "#C5D9F1"|'''S.No'''
−
'''Time line:''' 01/01/1836 to 07/03/2011
+
|align = "center" bgcolor = "#C5D9F1"|'''Date'''
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
|align = "center" bgcolor = "#C5D9F1"|'''Details'''
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
+
|align = "center" bgcolor = "#C5D9F1"|'''Source'''
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Concept'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Scope'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Search String'''</font>
+
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''No. of Hits'''</font>
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|1
+
−
|bgcolor = "#DCE6F1"|Doubly-fed Induction Generator: Keywords(broad)
+
−
|bgcolor = "#DCE6F1"|Claims, Title, and Abstract
+
−
|bgcolor = "#DCE6F1"|(((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>4 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3)) NEAR5 (induction OR asynchronous)) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR dfig or doig)
+
−
|align = "right" bgcolor = "#DCE6F1"|873
+
−
|-valign="top"
+
−
|align = "center"|2
+
−
|Doubly-fed Induction Generator: Keywords(broad)
+
−
|Full Spec.
+
−
|(((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>1 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3)) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1))) OR dfig or doig)
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|3
+
−
|bgcolor = "#DCE6F1"|Induction Machine: Classes
+
−
|bgcolor = "#DCE6F1"|US, IPC, and ECLA Classes
+
−
|bgcolor = "#DCE6F1"|((318/727 OR 322/047) OR (H02K001742))
+
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
−
|-valign="top"
+
−
|align = "center"|4
+
−
|Generators: Classes
+
−
|US, IPC, and ECLA Classes
+
−
|((290/044 OR 290/055) OR (F03D000900C OR H02J000338 OR F03D0009<nowiki>*</nowiki> OR H02P0009<nowiki>*</nowiki>))
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|bgcolor = "#DCE6F1"|Combined Query
+
−
|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
+
−
|align = "left" bgcolor = "#DCE6F1"|2 AND 3
+
−
|align = "right" bgcolor = "#DCE6F1"|109
+
−
|-valign="top"
+
−
|align = "center"|6
+
−
|Combined Query
+
−
|align = "center"|<nowiki>-</nowiki>
+
−
|align = "left"|2 AND 4
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|align = "right"|768
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|7
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|bgcolor = "#DCE6F1"|French Keywords
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|bgcolor = "#DCE6F1"|Claims, Title, and Abstract
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|bgcolor = "#DCE6F1"|((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3 OR two OR deux) NEAR4 (nourris OR feed<nowiki>*</nowiki>3 OR puissance OR sortie<nowiki>*</nowiki>1 OR contrôle<nowiki>*</nowiki>1)) NEAR4 (induction OR asynchron<nowiki>*</nowiki>1) NEAR4 (générateur<nowiki>*</nowiki>1 OR generator<nowiki>*</nowiki>1 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR dfig or doig)
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|align = "right" bgcolor = "#DCE6F1"|262
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|-valign="top"
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|align = "center"|8
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|German Keywords
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|Claims, Title, and Abstract
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|(((((doppel<nowiki>*</nowiki>1 OR dual OR two OR zwei) ADJ3 (ausgang OR ausgänge OR kontroll<nowiki>*</nowiki> OR control<nowiki>*</nowiki>4 OR gesteuert OR macht OR feed<nowiki>*</nowiki>1 OR gefüttert OR gespeiste<nowiki>*</nowiki>1)) OR (doppeltgefüttert OR doppeltgespeiste<nowiki>*</nowiki>1)) NEAR4 (((induktion OR asynchronen) NEAR4 (generator<nowiki>*</nowiki>2 OR maschine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1)) OR (induktion?maschinen OR induktion?generatoren OR asynchronmaschine OR asynchrongenerator))) OR dfig)
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|align = "right"|306
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|9
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|bgcolor = "#DCE6F1"|Doubly-fed Induction Generator: Keywords(narrow)
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|bgcolor = "#DCE6F1"|Full Spec.
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|bgcolor = "#DCE6F1"|(((((((doubl<nowiki>*</nowiki>3 OR dual<nowiki>*</nowiki>3) ADJ3 (power<nowiki>*</nowiki>2 OR output<nowiki>*</nowiki>4 OR control<nowiki>*</nowiki>4 OR fed OR feed<nowiki>*</nowiki>3))) NEAR5 (generat<nowiki>*</nowiki>3 OR machine<nowiki>*</nowiki>1 OR dynamo<nowiki>*</nowiki>1))) SAME wind) OR (dfig SAME wind))
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|align = "right" bgcolor = "#DCE6F1"|1375
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|-valign="top"
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|align = "center"|10
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| Top Assignees
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|align = "center"|<nowiki>-</nowiki>
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|(vestas* OR (gen* ADJ2 electric*) OR ge OR hitachi OR woodward OR repower OR areva OR gamesa OR ingeteam OR nordex OR siemens OR (abb ADJ2 research) OR (american ADJ2 superconductor*) OR (korea ADJ2 electro*) OR (univ* NEAR3 navarra) OR (wind OR technolog*) OR (wind ADJ2 to ADJ2 power))
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|align = "center"|-
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|11
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|bgcolor = "#DCE6F1"|Combined Query
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|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
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|bgcolor = "#DCE6F1"|2 AND 10
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|align = "right" bgcolor = "#DCE6F1"|690
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|-valign="top"
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|align = "center"|12
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|Top Inventors
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|align = "center"|<nowiki>-</nowiki>
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|((Andersen NEAR2 Brian) OR (Engelhardt NEAR2 Stephan) OR (Ichinose NEAR2 Masaya) OR (Jorgensen NEAR2 Allan NEAR2 Holm) OR ((Scholte ADJ2 Wassink) NEAR2 Hartmut) OR (OOHARA NEAR2 Shinya) OR (Rivas NEAR2 Gregorio) OR (Erdman NEAR2 William) OR (Feddersen NEAR2 Lorenz) OR (Fortmann NEAR2 Jens) OR (Garcia NEAR2 Jorge NEAR2 Martinez) OR (Gertmar NEAR2 Lars) OR (KROGH NEAR2 Lars) OR (LETAS NEAR2 Heinz NEAR2 Hermann) OR (Lopez NEAR2 Taberna NEAR2 Jesus) OR (Nielsen NEAR2 John) OR (STOEV NEAR2 Alexander) OR (W?ng NEAR2 Haiqing) OR (Yuan NEAR2 Xiaoming))
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|align = "center"|-
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|13
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|bgcolor = "#DCE6F1" |Combined Query
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|align = "center" bgcolor = "#DCE6F1"|<nowiki>-</nowiki>
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|bgcolor = "#DCE6F1"|((3 OR 4) AND 10)
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|align = "right" bgcolor = "#DCE6F1"|899
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|-valign="top"
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|align = "center"|14
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|Final Query
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|align = "center"|<nowiki>-</nowiki>
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|1 OR 5 OR 6 OR 7 OR 8 OR 9 OR 11 OR 13
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|'''2466(1060 INPADOC Families)'''
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|}
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|align = "center"|1
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|align = "center"|23rd April<nowiki>’</nowiki>11
−
==Taxonomy==
+
|'''Suzlon '''has announced the signing of an order with Gujarat State Fertilizers & Chemicals (GSFC) to set up, operate and maintain wind energy projects totaling to 50.4 MW in Gujarat.The projects, utilising 24 units of Suzlon<nowiki>’</nowiki>s S88-2.1 MW wind turbine, will be set up in wind farms operated by Suzlon in the Rajkot and Surendranagar districts of Gujarat. This is GSFC<nowiki>’</nowiki>s fifth order with Suzlon and is scheduled for completion and commissioning by September 2011.
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*''Use the mouse(click and drag/scroll up or down/click on nodes) to explore nodes in the detailed taxonomy''
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|align = "center"|ProQuest
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*''Click on the red arrow adjacent to the node name to view the content for that particular node in the dashboard''
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{|border="2" cellspacing="0" cellpadding="4" width="100%"
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|<mm>[[Doubly_fed_Induction_Generator.mm|Interactive Mind-map|center|flash|Doubly-fed Induction Generator|600pt]]</mm>
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|}
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==Sample Analysis==
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A sample of 139 patents from the search is analyzed based on the taxonomy.
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Provided a link below for sample spread sheet analysis for doubly-fed induction generators.<br>
+
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===Patent Analysis===
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{|border="2" cellspacing="0" cellpadding="4" width="100%"
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|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="38"|<font color="#FFFFFF">'''S. No'''</font>
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|align = "center" bgcolor = "#4F81BD" rowspan = "2" |<font color="#FFFFFF">'''Patent/Publication No.'''</font>
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|align = "center" bgcolor = "#4F81BD" rowspan = "2" width="105"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
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|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
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|align = "center" bgcolor = "#4F81BD" rowspan = "2"|<font color="#FFFFFF">'''Title'''</font>
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|align = "center" bgcolor = "#4F81BD" colspan = "2"|<font color="#FFFFFF">'''Dolcera Analysis'''</font>
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|-
 
|-
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|align = "center" bgcolor = "#95B3D7"|'''Problem'''
 
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|align = "center" bgcolor = "#95B3D7"|'''Solution'''
 
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|-valign="top"
 
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|align = "center" bgcolor = "#DCE6F1"|1
 
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100117605%22.PGNR.&OS=DN/20100117605&RS=DN/20100117605 US20100117605]</u></font>
 
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|align = "center" bgcolor = "#DCE6F1"|05/13/10
 
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|bgcolor = "#DCE6F1"|Woodward
 
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|bgcolor = "#DCE6F1"|Method of and apparatus for operating a double-fed asynchronous machine in the event of transient mains voltage changes
 
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|bgcolor = "#DCE6F1"|The short-circuit-like currents in the case of transient mains voltage changes lead to a corresponding air gap torque which loads the drive train and transmission lines can damages or reduces the drive train and power system equipments.
 
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|bgcolor = "#DCE6F1"|The method presents that the stator connecting with the network and the rotor with a converter. The converter is formed to set a reference value of electrical amplitude in the rotor, by which a reference value of the electrical amplitude is set in the rotor after attaining a transient mains voltage change, such that the rotor flux approaches the stator flux.
 
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|-valign="top"
 
 
|align = "center"|2
 
|align = "center"|2
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100045040%22.PGNR.&OS=DN/20100045040&RS=DN/20100045040 US20100045040]</u></font>
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|align = "center"|9th April<nowiki>’</nowiki>11
−
|align = "center"|02/25/10
+
|Recently, '''Suzlon Energy''', India<nowiki>’</nowiki>s leader in wind energy launched a new range of large capacity wind turbine machines suitable for low wind speeds. It has also raised its stake in Repower Systems AG to 95.16% from earlier 91%. The company will initiate a <nowiki>’</nowiki>squeeze out procedure<nowiki>’</nowiki> of minority shareholders so that Repower becomes a wholly owned subsidiary.
−
|Vestas Wind Systems
+
|align = "center"|ProQuest
−
|Variable speed wind turbine with doubly-fed induction generator compensated for varying rotor speed
+
|-
−
|The DFIG system has poor damping of oscillations within the flux dynamics due to cross coupling between active and reactive currents, which makes the system potentially unstable under certain circumstances and complicates the work of the rotor current controller. These oscillations can damage the drive train mechanisms.
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|align = "center"|3
−
|A compensation block is arranged, which feeds a compensation control output to the rotor of the generator. The computation unit computes the control output during operation of the turbine to compensate partly for dependencies on a rotor angular speed of locations of poles of a generator transfer function, so that the transfer function is made independent of variations in the speed during operation of the turbine which eliminates the oscillations and increases the efficiency of the wind turbine.
+
|align = "center"|6th April<nowiki>’</nowiki>11
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|-valign="top"
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|'''Suzlon Energy''', through its subsidiary, would have full control over the off-shore wind equipment specialist Repower, thus enabling access to the German player<nowiki>’</nowiki>s portfolio of products and more importantly technology. Added to it, the reasonably rich cash status of REpower and its minimal debt balance sheet could be more effectively utilised by Suzlon. This was not possible earlier, with Suzlon holding a less than 100 per cent stake.
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|align = "center" bgcolor = "#DCE6F1"|3
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|align = "center"|Business Line
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090267572%22.PGNR.&OS=DN/20090267572&RS=DN/20090267572 US20090267572]</u></font>
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−
|align = "center" bgcolor = "#DCE6F1"|10/29/09
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|bgcolor = "#DCE6F1"|Woodward
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|bgcolor = "#DCE6F1"|Current limitation for a double-fed asynchronous machine
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−
|bgcolor = "#DCE6F1"|Abnormal currents can damage the windings in the doubly- fed induction generator. Controlling these currents with the subordinate current controllers cannot be an efficient way to extract the maximum amount of active power.
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−
|bgcolor = "#DCE6F1"|The method involves delivering or receiving of a maximum permissible reference value of an active power during an operation of a double-fed asynchronous machine, where predetermined active power and reactive power reference values are limited to a calculated maximum permissible active and reactive power reference values, and hence ensures reliable regulated effect and reactive power without affecting the power adjustment, the rotor is electrically connected to a pulse-controlled inverter by slip rings with a static frequency changer, and thus a tension with variable amplitude and frequency is imposed in the rotor.
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|-valign="top"
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|align = "center"|4
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008944%22.PGNR.&OS=DN/20090008944&RS=DN/20090008944 US20090008944]</u></font>
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|align = "center"|01/08/09
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|Universidad Publica De Navarra
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|Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network
+
−
|Double-fed asynchronous generators are very sensitive to the faults that may arise in the electricity network, such as voltage sags. During the sag conditions the current which appears in said converter may reach very high values, and may even destroy it.
+
−
|During the event of a voltage sag occurring, the converter imposes a new set point current which is the result of adding to the previous set point current a new term, called demagnetizing current, It is proportional to a value of free flow of a generator stator. A difference between a value of a magnetic flow in the stator of the generator and a value of a stator flow associated to a direct component of a stator voltage is estimated. A value of a preset calculated difference is multiplied by a factor for producing the demagnetizing current.
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|5
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7355295.PN.&OS=PN/7355295&RS=PN/7355295 US7355295]</u></font>
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|align = "center" bgcolor = "#DCE6F1"|04/08/08
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|bgcolor = "#DCE6F1"|Ingeteam Energy
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|bgcolor = "#DCE6F1"|Variable speed wind turbine having an exciter machine and a power converter not connected to the grid
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|bgcolor = "#DCE6F1"|a) The active switching of the semiconductors of the grid side converter injects undesirable high frequency harmonics to the grid.<br>b) The use of power electronic converters (4) connected to the grid (9) causes harmonic distortion of the network voltage.
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|bgcolor = "#DCE6F1"|Providing the way that power is only delivered to the grid through the stator of the doubly fed induction generator, avoiding undesired harmonic distortion. <br>Grid Flux Orientation (GFO) is used to accurately control the power injected to the grid. An advantage of this control system is that it does not depend on machine parameters, which may vary significantly, and theoretical machine models, avoiding the use of additional adjusting loops and achieving a better power quality fed into the utility grid.
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|-valign="top"
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|align = "center"|6
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080203978%22.PGNR.&OS=DN/20080203978&RS=DN/20080203978 US20080203978]</u></font>
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|align = "center"|08/28/08
+
−
|Semikron
+
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|Frequency converter for a double-fed asynchronous generator with variable power output and method for its operation
+
−
|Optislip circuit with a resistor is used when speed is above synchronous speed, results in heating the resistor and thus the generator leads to limitation of operation in super synchronous range which results in tower fluctuations.
+
−
|Providing a back-to-back converter which contains the inverter circuit has direct current (DC) inputs, DC outputs, and a rotor-rectifier connected to a rotor of a dual feed asynchronous generator. A mains inverter is connected to a power grid, and an intermediate circuit connects one of the DC inputs with the DC outputs. The intermediate circuit has a semiconductor switch between the DC outputs, an intermediate circuit condenser between the DC inputs, and a diode provided between the semiconductor switch and the condenser. Thus the system is allowed for any speed of wind  and reduces the tower fluctuations.
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|-valign="top"
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|align = "center" bgcolor = "#DCE6F1"|7
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070210651%22.PGNR.&OS=DN/20070210651&RS=DN/20070210651 US20070210651]</u></font>
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|align = "center" bgcolor = "#DCE6F1"|09/13/07
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|bgcolor = "#DCE6F1"|Hitachi
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−
|bgcolor = "#DCE6F1"|Power converter for doubly-fed power generator system
+
−
|bgcolor = "#DCE6F1"|During the ground faults, excess currents is induced in the secondary windings and flows into power converter connected to secondary side and may damage the power converter. Conventional methods of increasing the capacity of the power converter increases system cost, degrade the system and takes time to activate the system to supply power again.
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−
|bgcolor = "#DCE6F1"|The generator provided with a  excitation power converter connected to secondary windings of a doubly-fed generator via impedance e.g. reactor, and a diode rectifier connected in parallel to the second windings of the doubly-fed generator via another impedance. A direct current link of the rectifier is connected in parallel to a DC link of the converter. A controller  outputs an on-command to a power semiconductor switching element of the converter if a value of current flowing in the power semiconductor switching element is a predetermined value or larger.
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|-valign="top"
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|align = "center"|8
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070132248%22.PGNR.&OS=DN/20070132248&RS=DN/20070132248 US20070132248]</u></font>
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−
|align = "center"|06/14/07
+
−
|General Electric
+
−
|System and method of operating double fed induction generators
+
−
|Wind turbines with double fed induction generators are sensitive to grid faults. Conventional methods are not effective to reduce the shaft stress during grid faults and slow response and using dynamic voltage restorer (DVR) is cost expensive.
+
−
|The protection system has a controlled impedance device. Impedance device has bidirectional semiconductors such triac, assembly of thyristors or anti-parallel thyristors. Each of the controlled impedance devices is coupled between a respective phase of a stator winding of a double fed induction generator and a respective phase of a grid side converter. The protection system also includes a controller configured for coupling and decoupling impedance in one or more of the controlled impedance devices in response to changes in utility grid voltage and a utility grid current. High impedance is offered to the grid during network faults to isolate the dual fed wind turbine generator.
+
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|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|9
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−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060192390%22.PGNR.&OS=DN/20060192390&RS=DN/20060192390 US20060192390]</u></font>
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|align = "center" bgcolor = "#DCE6F1"|08/31/06
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|bgcolor = "#DCE6F1"|Gamesa Innovation
+
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|bgcolor = "#DCE6F1"|Control and protection of a doubly-fed induction generator system
+
−
|bgcolor = "#DCE6F1"|A short-circuit in the grid causes the generator to feed high stator-currents into the short-circuit and the rotor-currents increase very rapidly which cause damage to the power-electronic components of the converter connecting the rotor windings with the rotor-inverter.
+
−
|bgcolor = "#DCE6F1"|The converter is provided with a clamping unit which is triggered from a non-operation state to an operation state, during detection of over-current in the rotor windings. The clamping unit comprises passive voltage-dependent resistor element for providing a clamping voltage over the rotor windings when the clamping unit is triggered.
+
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|-valign="top"
+
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|align = "center"|10
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|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220050189896%22.PGNR.&OS=DN/20050189896&RS=DN/20050189896 US20050189896]</u></font>
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|align = "center"|09/01/05
+
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|ABB Research
+
−
|Method for controlling doubly-fed machine
+
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|Controlling the double fed machines on the basis of inverter control to implement the targets set for the machine, this model is extremely complicated and includes numerous parameters that are often to be determined.
+
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|A method is provided to use a standard scalar-controlled frequency converter for machine control. A frequency reference for the inverter with a control circuit, and reactive power reference are set for the machine. A rotor current compensation reference is set based on reactive power reference and reactive power. A scalar-controlled inverter is controlled for producing voltage for the rotor of the machine, based on the set frequency reference and rotor current compensation reference.
+
 
|-
 
|-
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|}
 
−
Click '''[[Media:Doublyfed_induction_generator1.xls| here]]''' to view the detailed analysis sheet for doubly-fed induction generators patent analysis.
 
−
 
−
===Article Analysis===
 
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{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
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|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S No.'''</font>
 
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
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|align = "center" bgcolor = "#4F81BD" width="105"|<font color="#FFFFFF">'''Publication Date<br>'''(mm/dd/yyyy)</font>
 
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
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|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Dolcera Summary'''</font>
 
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|-valign="top"
 
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|align = "center" bgcolor = "#DCE6F1"|1
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1709031&queryText=Study+on+the+Control+of+DFIG+and+Its+Responses+to+Grid+Disturbances&openedRefinements=*&searchField=Search+All Study on the Control of DFIG and its Responses to Grid Disturbances ]</u></font>
 
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|align = "center" bgcolor = "#DCE6F1"|01/01/06
 
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|bgcolor = "#DCE6F1"|Power Engineering Society General Meeting, 2006. IEEE
 
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|bgcolor = "#DCE6F1"|Presented dynamic model of the DFIG, including mechanical model, generator model, and PWM voltage source converters. Vector control strategies adapted for both the RSC and GSC to control speed and reactive power independently. Control designing methods, such as pole-placement method and the internal model control are used. MATLAB/Simulink is used for simulation.
 
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|-valign="top"
 
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|align = "center"|2
 
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|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=1649950&queryText=Application+of+Matrix+Converter+for+Variable+Speed+Wind+Turbine+Driving+an+Doubly+Fed+Induction+Generator&openedRefinements=*&searchField=Search+All Application of Matrix Converter for Variable Speed Wind Turbine Driving an Doubly Fed Induction Generator ]</u></font>
 
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|align = "center"|05/23/06
 
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|Power Electronics, Electrical Drives, Automation and Motion, 2006. SPEEDAM 2006.
 
−
|A matrix converter is replaced with back to back converter in a variable speed wind turbine using doubly fed induction generator. Stable operation is achieved by stator flux oriented control technique and the system operated in both sub and super synchronous modes, achieved good results.
 
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|-valign="top"
 
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|align = "center" bgcolor = "#DCE6F1"|3
 
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|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4778305&queryText=Optimal+Power+Control+Strategy+of+Maximizing+Wind+Energy+Tracking+and+Conversion+for+VSCF+Doubly+Fed+Induction+Generator+System&openedRefinements=*&searchField=Search+Al Optimal Power Control Strategy of Maximizing Wind Energy Tracking and Conversion for VSCF Doubly Fed Induction Generator System ]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|08/14/06
 
−
|bgcolor = "#DCE6F1"|Power Electronics and Motion Control Conference, 2006. IPEMC 2006. CES/IEEE 5th International
 
−
|bgcolor = "#DCE6F1"|Proposed a new optimal control strategy of maximum wind power extraction strategies and testified by simulation. The control algorithm also used to minimize the losses in the generator. The dual passage excitation control strategy is applied to decouple the active and reactive powers. With this control system, the simulation results show the good robustness and high generator efficiency is achieved.
 
−
|-valign="top"
 
 
|align = "center"|4
 
|align = "center"|4
−
|<font color="#0000FF"><u>[http://docs.google.com/viewer?a=v&q=cache:HqaFsMBhchcJ:iris.elf.stuba.sk/JEEEC/data/pdf/3_108-8.pdf+A+TORQUE+TRACKING+CONTROL+ALGORITHM+FOR+DOUBLY–FED+INDUCTION+GENERATOR&hl=enπd=bl&srcid=ADGEESgbHXoAbKe4O7b5DnykDc7h_LaHwCMIhkVrGX_whx4iUuE4Mc-3Rfq1DyW_h A Torque Tracking Control algorithm for Doubly–fed Induction Generator ]</u></font>
+
|align = "center"|5th,April <nowiki>’</nowiki>11
−
|align = "center"|01/01/08
+
|Massive, new natural-gas discoveries in the U.S. slashed the price of the fuel that wind competes most directly against. And the recession slowed demand for new power plants of any kind, leading more politicians to question renewables subsidies. Congress has declined so far to pass a renewable-energy requirement. Some major wind-turbine makers are cutting production at some factories. More than a year ago, '''Suzlon Energy Ltd.''', an Indian company that is one of the world<nowiki>’</nowiki>s biggest wind-turbine makers, began laying off workers at its plant in Pipestone, Minn., which makes blades for turbines; the plant now is operating at just one-third of its capacity, says Tulsi Tanti, the company<nowiki>’</nowiki>s chief executive. Given the lack of a nation-wide renewables mandate, he says, Suzlon also has postponed plans to build another U.S. factory, in Texas.
−
|Journal of Electrical Engineering
+
|align = "center"|Factiva
−
|Proposed a torque tracking control algorithm for Doubly fed induction generator using PI controllers. It is achieved by controlling the rotor currents and using a stator voltage vector reference frame.
+
−
|-valign="top"
+
−
|align = "center" bgcolor = "#DCE6F1"|5
+
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/search/freesrchabstract.jsp?tp=&arnumber=4651578&queryText=Fault+Ride+Through+Capability+Improvement+Of+Wind+Farms+Usind+Doubly+Fed+Induciton+Generator&openedRefinements=*&searchField=Search+All Fault Ride Through Capability Improvement Of Wind Farms Using Doubly Fed Induction Generator ]</u></font>
+
−
|align = "center" bgcolor = "#DCE6F1"|09/04/08
+
−
|bgcolor = "#DCE6F1"|Universities Power Engineering Conference, 2008. UPEC 2008. 43rd International
+
−
|bgcolor = "#DCE6F1"|An active diode bridge crowbar switch presented to improve fault ride through capability of DIFG. Showed different parameters related to crowbar such a crowbar resistance, power loss, temperature and time delay for deactivation during fault.
+
 
|-
 
|-
 
|}
 
|}
−
Click '''[[Media:Doublyfed_induction_generators1.xls| here]]''' to view the detailed analysis sheet for doubly-fed induction generators article analysis.
 
 
<br>
 
<br>
−
===Top Cited Patents===
 
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Patent/Publication No.'''</font>
 
−
|align = "center" bgcolor = "#4F81BD" width="105"|<font color="#FFFFFF">'''Publication Date'''<br>(mm/dd/yyyy)</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Assignee/Applicant'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citation Count'''</font>
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|1
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5289041.PN.&OS=PN/5289041&RS=PN/5289041 US5289041]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|02/22/94
 
−
|bgcolor = "#DCE6F1"|US Windpower
 
−
|bgcolor = "#DCE6F1"|Speed control system for a variable speed wind turbine
 
−
|align = "center" bgcolor = "#DCE6F1"|80
 
−
|-valign="top"
 
−
|align = "center"|2
 
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=4982147.PN.&OS=PN/4982147&RS=PN/4982147 US4982147]</u></font>
 
−
|align = "center"|01/01/91
 
−
|Oregon State
 
−
|Power factor motor control system
 
−
|align = "center"|62
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|3
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5028804.PN.&OS=PN/5028804&RS=PN/5028804 US5028804]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|07/02/91
 
−
|bgcolor = "#DCE6F1"|Oregon State
 
−
|bgcolor = "#DCE6F1"|Brushless doubly-fed generator control system
 
−
|align = "center" bgcolor = "#DCE6F1"|51
 
−
|-valign="top"
 
−
|align = "center"|4
 
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=5239251.PN.&OS=PN/5239251&RS=PN/5239251 US5239251]</u></font>
 
−
|align = "center"|08/24/93
 
−
|Oregon State
 
−
|Brushless doubly-fed motor control system
 
−
|align = "center"|49
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|5
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6856038.PN.&OS=PN/6856038&RS=PN/6856038 US6856038]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|02/15/05
 
−
|bgcolor = "#DCE6F1"|Vestas Wind Systems
 
−
|bgcolor = "#DCE6F1"|Variable speed wind turbine having a matrix converter
 
−
|align = "center" bgcolor = "#DCE6F1"|43
 
−
|-valign="top"
 
−
|align = "center"|6
 
−
|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=1999029034 WO1999029034]</u></font>
 
−
|align = "center"|06/10/99
 
−
|Asea Brown
 
−
|A method and a system for speed control of a rotating electrical machine with flux composed of two quantities
 
−
|align = "center"|36
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|7
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://www.wipo.int/pctdb/en/wo.jsp?WO=1999019963 WO1999019963]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|04/22/99
 
−
|bgcolor = "#DCE6F1"|Asea Brown
 
−
|bgcolor = "#DCE6F1"|Rotating electric machine
 
−
|align = "center" bgcolor = "#DCE6F1"|36
 
−
|-valign="top"
 
−
|align = "center"|8
 
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7015595.PN.&OS=PN/7015595&RS=PN/7015595 US7015595]</u></font>
 
−
|align = "center"|03/21/06
 
−
|Vestas Wind Systems
 
−
|Variable speed wind turbine having a passive grid side rectifier with scalar power control and dependent pitch control
 
−
|align = "center"|34
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|9
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=4763058.PN.&OS=PN/4763058&RS=PN/4763058 US4763058]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|08/09/88
 
−
|bgcolor = "#DCE6F1"|Siemens
 
−
|bgcolor = "#DCE6F1"|Method and apparatus for determining the flux angle of rotating field machine or for position-oriented operation of the machine
 
−
|align = "center" bgcolor = "#DCE6F1"|32
 
−
|-valign="top"
 
−
|align = "center"|10
 
−
|<font color="#0000FF"><u>[http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7095131.PN.&OS=PN/7095131&RS=PN/7095131 US7095131]</u></font>
 
−
|align = "center"|08/22/06
 
−
|General Electric
 
−
|Variable speed wind turbine generator
 
−
|align = "center"|25
 
−
|-
 
−
|}
 
−
===Top Cited Articles===
 
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
 
−
|align = "center" bgcolor = "#4F81BD" width="38"|<font color="#FFFFFF">'''S. No.'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Title'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Publication Date'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Journal/Conference'''</font>
 
−
|align = "center" bgcolor = "#4F81BD"|<font color="#FFFFFF">'''Citations Count'''</font>
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|1
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=502360 Doubly fed induction generator using back-to-back PWM converters and its application to variable-speed wind-energy generation]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|May. 1996
 
−
|bgcolor = "#DCE6F1"|IEEE Proceedings Electric Power Applications
 
−
|align = "center" bgcolor = "#DCE6F1"|906
 
−
|-valign="top"
 
−
|align = "center"|2
 
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=999610 Doubly fed induction generator systems for wind turbines]</u></font>
 
−
|align = "center"|May. 2002
 
−
|IEEE Industry Applications Magazine
 
−
|align = "center"|508
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|3
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=1198317 Dynamic modeling of doubly fed induction generator wind turbines]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|May. 2003
 
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Power Systems
 
−
|align = "center" bgcolor = "#DCE6F1"|274
 
−
|-valign="top"
 
−
|align = "center"|4
 
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1201089 Modeling and control of a wind turbine driven doubly fed induction generator]</u></font>
 
−
|align = "center"|Jun. 2003
 
−
|IEEE Transactions on Energy Conversion
 
−
|align = "center"|271
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|5
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/iel5/60/30892/01432858.pdf?arnumber=1432858 Ride through of wind turbines with doubly-fed induction generator during a voltage dip]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|Jun. 2005
 
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
 
−
|align = "center" bgcolor = "#DCE6F1"|246
 
−
|-valign="top"
 
−
|align = "center"|6
 
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=970114 Dynamic modeling of a wind turbine with doubly fed induction generator]</u></font>
 
−
|align = "center"|July. 2001
 
−
|IEEE Power Engineering Society Summer Meeting, 2001
 
−
|align = "center"|196
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|7
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1597345 Modeling of the wind turbine with a doubly fed induction generator for grid integration studies]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|Mar. 2006
 
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
 
−
|align = "center" bgcolor = "#DCE6F1"|174
 
−
|-valign="top"
 
−
|align = "center"|8
 
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=543631 A doubly fed induction generator using back-to-back PWM converters supplying an isolated load from a variable speed wind turbine]</u></font>
 
−
|align = "center"|Sept. 1996
 
−
|IEEE Proceedings Electric Power Applications
 
−
|align = "center"|150
 
−
|-valign="top"
 
−
|align = "center" bgcolor = "#DCE6F1"|9
 
−
|bgcolor = "#DCE6F1"|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?&arnumber=1432853 Doubly fed induction generator model for transient stability analysis]</u></font>
 
−
|align = "center" bgcolor = "#DCE6F1"|Jun. 2005
 
−
|bgcolor = "#DCE6F1"|IEEE Transactions on Energy Conversion
 
−
|align = "center" bgcolor = "#DCE6F1"|106
 
−
|-valign="top"
 
−
|align = "center"|10
 
−
|<font color="#0000FF"><u>[http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1677655 Control of a doubly fed induction generator in a wind turbine during grid fault ride-through]</u></font>
 
−
|align = "center"|Sept. 2006
 
−
|IEEE Transactions on Energy Conversion
 
−
|align = "center"|112
 
−
|-
 
−
|}
 
  
−
===White Space Analysis===
+
==Key Insights==
−
* White-space analysis provides the technology growth and gaps in the technology where further R&D can be done to gain competitive edge and to carry out incremental innovation.
+
'''Support from Government of India'''<br>
−
* Dolcera provides White Space Analysis in different  dimensions. Based on Product, Market, Method of Use, Capabilities or Application or Business Area and defines the exact categories within the dimension.
+
The Indian government has enacted legislation giving a tax break for investments in renewable energy twice in the last five years giving a significant boost to Suzlon as it has a 50% market share in India.
−
* Below table shows a sample representation of white space analysis for controlling DFIG parameters with converters, based on the sample analysis.
+
<br><br>
−
{|border="2" cellspacing="0" cellpadding="14" width="20%"
+
'''Rejection of Wind Turbine Blades'''
−
| style="background-color:#99ccff;"| <center>'''White Space of converters used to control'''</center>
+
<br>Suzlon has faced the problem of continuous rejection of wind turbine blades and it resulted in the following:
−
| style="background-color:#99ccff;"| <center>'''Active power'''</center>
+
*Shares dropped 19% because of china issue
−
| style="background-color:#99ccff;"| <center>'''Reactive Power'''</center>
+
*Shares dropped 84% last year because of US issue
−
| style="background-color:#99ccff;"| <center>'''Decoupled P-Q control'''</center>
+
*Spends $100M to fix cracked-blade problem
−
| style="background-color:#99ccff;"| <center>'''Field oriented control'''</center>
+
<br>
−
| style="background-color:#99ccff;"| <center>'''Direct torque control'''</center>
+
'''Debt Problem'''
−
| style="background-color:#99ccff;"| <center>'''Speed control'''</center>
+
Suzlon currently has net debt of USD 2.05bn and faces a heavy debt repayment schedule beginning in FY2013.
−
| style="background-color:#99ccff;"| <center>'''Frequency Control'''</center>
+
*Monetized 35.22% stake in Hansen Transmissions
−
| style="background-color:#99ccff;"| <center>'''Pitch control'''</center>
+
*Realized GBP 224 million through placement of 236 million depository interests at a price of 95 pence per depository interest
−
| style="background-color:#99ccff;"| <center>'''PWM Technique'''</center>
+
<br>
−
| style="background-color:#99ccff;"| <center>'''Low voltage ride through'''</center>
+
'''R&D and NPD Outlook'''
−
| style="background-color:#99ccff;"| <center>'''Network fault/Grid fault'''</center>
+
*Suzlon has doubled its R&D expenditure
−
| style="background-color:#99ccff;"| <center>'''Symmetrical and Asymmetrical Faults'''</center>
+
*Introduced 2 new products
−
| style="background-color:#99ccff;"| <center>'''Temp control'''</center>
+
*Extensive research in setting up wind mills in forested area
 +
<br>
 +
'''Repeat Orders in India'''
 +
*Gujarat State Petronet Ltd.
 +
*Rajasthan State Miners & Minerals Ltd.
 +
*Gujarat Alkalies and Chemicals Ltd.
 +
*State Bank of India
 +
*Gas Authority of India
 +
<br>
  
 +
==Key Executives==
 +
{|border="2" cellspacing="0" cellpadding="4" width="70%" align="center"
 +
|bgcolor = "#CCCCFF"|<font color="#000000">'''Name'''</font>
 +
|bgcolor = "#CCCCFF"|<font color="#000000">'''Designation'''</font>
 
|-
 
|-
−
| style="background-color:#99ccff;"| <center>'''Grid Side active converters'''</center>
+
|Tulsi Tanti
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052394%22.PGNR.&OS=DN/20070052394&RS=DN/20070052394 US20070052394A1]
+
|Founder, Chairman, Managing Director, Chairman of Employees Stock Option Plan Committee, Chairman of Securities Issue Committee and Member of Investors Grievance Committee
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220060028025%22.PGNR.&OS=DN/20060028025&RS=DN/20060028025 US20060028025A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100148508%22.PGNR.&OS=DN/20100148508&RS=DN/20100148508 US20100148508A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100133816%22.PGNR.&OS=DN/20100133816&RS=DN/20100133816 US20100133816A1]
+
−
[http://v3.espacenet.com/searchResults?NUM=EP2166226A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2166226A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070132248%22.PGNR.&OS=DN/20070132248&RS=DN/20070132248 US20070132248A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052394%22.PGNR.&OS=DN/20070052394&RS=DN/20070052394 US20070052394A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100096853%22.PGNR.&OS=DN/20100096853&RS=DN/20100096853 US20100096853A1]
+
−
|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100114388%22.PGNR.&OS=DN/20100114388&RS=DN/20100114388 US20100114388A1]
+
−
|
+
−
|
+
−
| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008938%22.PGNR.&OS=DN/20090008938&RS=DN/20090008938 US20090008938A1]
+
−
| style="background-color:#ffffff;"| [http://www.wipo.int/pctdb/en/wo.jsp?WO=2010079234 WO2010079234A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090230689%22.PGNR.&OS=DN/20090230689&RS=DN/20090230689 US20090230689A1]
+
−
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090206606%22.PGNR.&OS=DN/20090206606&RS=DN/20090206606 US20090206606A1]
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070024247%22.PGNR.&OS=DN/20070024247&RS=DN/20070024247 US20070024247A1]
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| style="background-color:#ffffff;"|[http://v3.espacenet.com/searchResults?NUM=EP2166226A1&DB=EPODOC&submitted=true&locale=en_V3&ST=number&compact=false EP2166226A1]
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| style="background-color:#99ccff;"| <center>'''Grid side passive converters'''</center>
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|Robin Banerjee
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030151259%22.PGNR.&OS=DN/20030151259&RS=DN/20030151259 US20030151259A1]
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|Chief Financial Officer
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220030151259%22.PGNR.&OS=DN/20030151259&RS=DN/20030151259 US20030151259A1]
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| style="background-color:#99ccff;"| <center>'''Rotor side converter'''</center>
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|Andris Cukurs
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220100142237%22.PGNR.&OS=DN/20100142237&RS=DN/20100142237 US20100142237A1]
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|Chief Executive Officer of USA
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| style="background-color:#ffffff;"|[http://www.wipo.int/pctdb/en/wo.jsp?WO=2010079234 WO2010079234A1]
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090230689%22.PGNR.&OS=DN/20090230689&RS=DN/20090230689 US20090230689A1]
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| style="background-color:#ffffff;"|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220080157533%22.PGNR.&OS=DN/20080157533&RS=DN/20080157533 US20080157533A1]
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070052244%22.PGNR.&OS=DN/20070052244&RS=DN/20070052244 US20070052244A1]
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070024059%22.PGNR.&OS=DN/20070024059&RS=DN/20070024059 US20070024059A1]
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| style="background-color:#ffffff;"|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090273185%22.PGNR.&OS=DN/20090273185&RS=DN/20090273185 US20090273185A1]
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090121483%22.PGNR.&OS=DN/20090121483&RS=DN/20090121483 US20090121483A1]
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[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090008938%22.PGNR.&OS=DN/20090008938&RS=DN/20090008938 US20090008938A1]
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|-
 
|-
−
| style="background-color:#99ccff;"| <center>'''Matrix converters'''</center>
+
|Dan Kofoed Hansen
−
|
+
|Chief Executive Officer of Australia & New Zealand and Vice President of Sales & Marketing - Asia Pacific
−
| style="background-color:#ffffff;"| [http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220020079706%22.PGNR.&OS=DN/20020079706&RS=DN/20020079706 US20020079706A1]
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070216164%22.PGNR.&OS=DN/20070216164&RS=DN/20070216164 US20070216164A1]
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220090265040%22.PGNR.&OS=DN/20090265040&RS=DN/20090265040 US20090265040A1]
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|[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220070216164%22.PGNR.&OS=DN/20070216164&RS=DN/20070216164 US20070216164A1]
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+
−
== Dolcera Dashboard ==
+
−
[[Image:dashboard_features.png|center|750px|]]
+
−
 
+
−
'''Dashboard Link'''<br>
+
−
{|border="2" cellspacing="0" cellpadding="4" width="100%"
+
−
|'''[http://client.dolcera.com/dashboard/dashboard.html?workfile_id=825 Doubly Fed Induction Generator - Dashboard] '''
+
−
|width="100"|[[Image:dashboard_thumb.png|center|100px|]]
+
 
|-
 
|-
−
|}
+
|Per Hornung Pedersen
−
*Flash Player is essential to view the Dolcera dashboard
+
|Chief Executive Officer of Europe
−
 
+
−
 
+
−
 
+
−
==Key Findings==
+
−
=== Major Players ===
+
−
* [http://www.vestas.com/ Vestas Wind Energy Systems] and [http://www.ge.com/ General Electric] are the major players in wind energy generation technology.
+
−
[[Image:Wind_Major_Players.png|center|thumb|700px|'''Major Players''']]
+
−
 
+
−
=== Key Patents ===
+
−
* The key patents in the field are held by [http://www.windpoweringamerica.gov/wind_installed_capacity.asp US Windpower], [http://www.oregon.gov/ENERGY/RENEW/Wind/windhome.shtml Oregon State] and [http://www.vestas.com/ Vestas Wind Energy Systems].
+
−
 
+
−
[[Image:wind_top_cited.png|center|thumb|700px|'''Key Patents''']]
+
−
 
+
−
=== IP Activity ===
+
−
* Patenting activity has seen a very high growth rate in the last two years.
+
−
[[Image:ind_pat_act_3.png|center|thumb|700px|'''Year wise IP Activity''']]
+
−
 
+
−
=== Geographical Activity ===
+
−
* USA, China, Germany, Spain, and India are very active in wind energy research.
+
−
[[Image:wind_geographical_act.png|center|thumb|700px|'''Geographical Activity''']]
+
−
 
+
−
=== Research Trend ===
+
−
* Around 86% patents are on controlling the doubly-fed induction generation(DFIG) which indicates high research activity going on in rating and controlling of the DFIG systems.
+
−
 
+
−
=== Issues in the Technology ===
+
−
* 86% of the patent on DFIG operation are focusing on grid connected mode of operation, suggesting continuous operation of the DFIG system during weak and storm winds, grid voltage sags, and grid faults are major issues in the current scenario.
+
−
 
+
−
[[Image:Windenergyanalysis.jpg|center|1200px|thumb|'''Problem Solution Mapping''']]
+
−
 
+
−
=== Emerging Player ===
+
−
* [http://www.woodward.com/ Woodward] is a new and fast developing player in the field of DFIG technology. The company filed 10 patent applications in the field in year 2010, while it has no prior IP activity.
+
−
 
+
−
=<span style="color:#C41E3A">Like this report?</span>=
+
−
<p align="center"> '''This is only a sample report with brief analysis''' <br>
+
−
'''Dolcera can provide a comprehensive report customized to your needs'''</p>
+
−
{|border="2" cellspacing="0" cellpadding="4" align="center" "
+
−
|style="background:lightgrey" align = "center"  colspan = "3"|'''[mailto:info@dolcera.com <span style="color:#0047AB">Buy the customized report from Dolcera</span>]'''
+
 
|-
 
|-
−
| align = "center"| [http://www.dolcera.com/website_prod/services/ip-patent-analytics-services Patent Analytics Services]
+
|Silas Zimu
−
|align = "center"| [http://www.dolcera.com/website_prod/services/business-research-services Market Research Services]
+
|Chief Executive Officer of South African Operations
−
|align = "center"| [http://www.dolcera.com/website_prod/tools/patent-dashboard Purchase Patent Dashboard]
+
 
|-
 
|-
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|align = "center"| [http://www.dolcera.com/website_prod/services/ip-patent-analytics-services/patent-search/patent-landscapes Patent Landscape Services]
+
|Ashok D'Sa
−
|align = "center"| [http://www.dolcera.com/website_prod/research-processes Dolcera Processes]
+
|President of India South Asia and Middle East
−
|align = "center"| [http://www.dolcera.com/website_prod/industries Industry Focus]
+
 
|-
 
|-
−
|align = "center"| [http://www.dolcera.com/website_prod/services/ip-patent-analytics-services/patent-search/patent-landscapes Patent Search Services]
+
|Arvind Mathew
−
|align = "center"| [http://www.dolcera.com/website_prod/services/ip-patent-analytics-services/alerts-and-updates Patent Alerting Services]
+
|President of Nacelle Manufacturing
−
|align = "center"| [http://www.dolcera.com/website_prod/tools Dolcera Tools]
+
|-
 +
|Nilesh Vaishnav
 +
|President of Blades
 
|-
 
|-
 
|}
 
|}
 
<br>
 
<br>
−
=References =
 
−
{|border="0" cellspacing="0" cellpadding="4" width="100%"
 
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|-valign="top"
 
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|'''Background References'''
 
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# [http://www.brighthub.com/environment/renewable-energy/articles/71440.aspx Wind Energy History]
 
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# [[Media:windenergy.pdf| Wind Energy]]
 
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# [http://windeis.anl.gov/guide/basics/index.cfm Wind Energy Basics]
 
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# [http://www1.eere.energy.gov/windandhydro/wind_how.html#inside How Wind Turbines Work]
 
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# [http://www.windpowertv.com/forum/index.php?topic=18.0 Different types of wind turbines]
 
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# [http://www.house-energy.com/Wind/Offshore-Onshore.htm Onshore Vs Offshore Wind Turbines]
 
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# [http://library.thinkquest.org/06aug/01335/wind%20Power.htm Wind Power]
 
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# [http://www.ehow.com/list_5938067_types-wind-farms-there_.html Types of Wind Farms]
 
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# [http://www.offshorewindenergy.org/ca-owee/indexpages/Offshore_technology.php?file=offtech_p2.php Offshore Technology]
 
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# [http://windsine.org/?act=spage&f=wind The Fundamentals of Wind Energy]
 
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# [http://windertower.com/ Winder Tower]
 
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# [http://www.thesolarguide.com/wind-power/wind-towers.aspx Wind Towers]
 
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# [http://guidedtour.windpower.org/en/tour/design/concepts.htm Wind Turbine Blades]
 
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# [http://www.wind-energy-the-facts.org/en/part-i-technology/chapter-3-wind-turbine-technology/evolution-of-commercial-wind-turbine-technology/design-styles.html Wind Turbine Design Styles]
 
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# [http://www.awewind.com/Products/TurbineConstruction/MainAssembly/RotorHub/tabid/81/Default.aspx Rotor Hub Assembly]
 
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# [http://www.gears-gearbox.com/wind-turbines.html Gearbox for Wind Turbines]
 
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# [http://guidedtour.windpower.org/en/tour/wtrb/yaw.htm The Wind Turbine Yaw Mechanism]
 
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# [http://guidedtour.windpower.org/en/tour/wtrb/yaw.htm The Wind Turbine Yaw Mechanism]
 
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# [[Media:windturbinegenerators.pdf| Wind Turbine Generators]]
 
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# [http://www.uni-hildesheim.de/~irwin/inside_wind_turbines.html Inside wind turbines]
 
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|'''Image References'''
 
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# [http://www.windsimulators.co.uk/DFIG.htm DFIG Working Principle]
 
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# [http://www.wwindea.org/home/index.php  Country share of total capacity]
 
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# [http://www.atlantissolar.com/wind_story.html Wind turbine principle]
 
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# [http://www.windturbinesnow.com/horizontalaxis-windturbines.htm Horizontal axis wind turbine]
 
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# [http://www.solarpowerwindenergy.org/2009/12/25/types-of-wind-turbines/ Vertical axis wind turbine]
 
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# [http://zone.ni.com/devzone/cda/tut/p/id/8189 Pitch control]
 
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# [http://zone.ni.com/devzone/cda/tut/p/id/8189 Yaw control]
 
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# [http://www.eco-trees.org/europes-biggest-onshore-wind-farm-goes-online/ Onshore Wind turbines]
 
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# [http://www.house-energy.com/Wind/Offshore-Onshore.htm Offshore wind turbines]
 
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# [http://www.solarpowerwindenergy.org/2010/04/02/parts-of-a-wind-turbine/ Wind turbine parts]
 
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# [http://www.windsolarenergy.org/map-of-best-locations-for-wind-power.htm Tower height Vs Power output]
 
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# [http://americanrenewableenergycorp.com/towers Tubular tower]
 
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# [http://www.mywindpowersystem.com/2010/03/wind-power-stats-quiet-critics/ Lattice tower]
 
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# [http://itgiproducts.com/energy/windTowers.asp Guy tower]
 
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# [http://itgiproducts.com/energy/windTowers.asp Tiltup tower]
 
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# [http://itgiproducts.com/energy/windTowers.asp Free stand tower]
 
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# [http://www.wind-energy-the-facts.org/en/part-i-technology/chapter-3-wind-turbine-technology/evolution-of-commercial-wind-turbine-technology/design-styles.html Single blade turbine]
 
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# [http://www.trendir.com/green/?start=15 Two blade turbine]
 
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# [http://www.china-windturbine.com/wind-turbines-blades.htm Three blade turbine]
 
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# [http://windturbinesforthehome.com/ Internal nacelle structure]
 
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# [http://syigroup.en.made-in-china.com/product/dbTQyzJOHYRi/China-Iron-Casting-Wind-Mill-Tower-Rotor-Hub.html Rotor hub]
 
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# [http://jiangyinzkforging.en.made-in-china.com/product/hewxIQjbgTpr/China-Wind-Turbine-Shaft-For-Wind-Power-Generator-ALIM2143-.html Shaft system]
 
−
# [http://machinedesign.com/article/green-technology-inside-an-advanced-wind-turbine-0605 Gear box]
 
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# [http://www1.eere.energy.gov/windandhydro/wind_how.html Anemometer & Wind vane]
 
  
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|-
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*'''Biography of CMD, Tulsi Tanti'''
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|}
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**Tulsi Tanti is from Gujarat, India where he started his first venture which was in textiles but he found the prospects stunted due to infrastructural bottlenecks. The biggest of them all was the cost and unavailability of power, which formed a high proportion of operating expenses of textile industry. In 1990, he invested in two wind turbine and realized their huge potential. In 1995, he formed Suzlon and gradually quit textiles. This is how he set out on a new path.
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**The $10 billion Suzlon Energy is his wind power based company that has expanded its operations into various parts of the globe. With this successful venture, Tanti is amongst the ten richest Indians and one of the most successful entrepreneurs in Asian region. With a net worth of $5.9 billion, he is the chairman and managing director of Suzlon energy. Tanti owns 70% of the company with his three siblings.
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=Contact Dolcera=
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{| style="border:1px solid #AAA; background:#E9E9E9" align="center"
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|-
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! style="background:lightgrey" | Samir Raiyani
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|-
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| '''Email''': [mailto:info@dolcera.com info@dolcera.com]
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|-
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| '''Phone''': +1-650-269-7952
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Revision as of 22:12, 10 May 2011

Company Overview

Suzlon Energy (Suzlon) is engaged in the manufacture and sale of wind turbine generators (WTGs) and components. It provides various wind energy solutions including wind resource mapping, site identification and development, installation, operation, and maintenance services. The company has operations across Americas, Asia, Australia, and Europe. It is headquartered in Pune, India and employs about 16,000 people. The company recorded revenues of INR206, 196.6 million ($4,330.1 million) during the financial year ended March 2010 (FY2010), a decrease of 20.9% compared to FY2009. The operating profit of the company was INR6, 125 million ($128.6 million) during FY2010, a decrease of 77% compared to FY2009. The net loss was INR9, 825.6 million ($206.3 million) in FY2010, compared to a net profit of INR2, 364.8 million ($49.6 million) in FY2009.

Key Facts


Head Office One Earth , Opp. Magarpatta City
Hadapsar
Pune 411 028
India
Phone 91 20 4012 2000
Fax 91 20 4012 2100
Web Address http://www.suzlon.com
Employees 16000
Turnover (US $M) 4330
Financial Year End March

Key Financials

600*400 px


Source: IMS Capital Report

Business Overview

Suzlon's wind energy business traces its roots back to the incorporation of Suzlon Energy Limited in 1995 by the venture of Mr. Tulsi R. Tanti. The company along with its subsidiaries engages in designing, developing and manufacturing of wind turbine generators and related components such as rotor blades, control panels, nacelle cover, tubular towers, generators and gearboxes. Further, the company also provides consultancy, design, manufacturing, installation, operation and maintenance services as well as is involved in wind resource mapping, identification of suitable sites and technical planning of wind power projects. The company principally operates in India, China, The Americas, Europe, New Zealand, South Korea, South Africa and Australia.
The company has forged ahead with an ethos of innovation in everything that it does. This has led to pioneering approaches and offerings such as a fully vertically-integrated value chain, leveraging local expertise and global experience, an 'end-to-end solutions' model and highly customized products – all contributing to make Suzlon the highest-growth, highest-margin wind turbine maker in a highly competitive environment. Suzlon's design, manufacture, operations and maintenance services have been certified as ISO 9001:2000 by Det Norske Veritas. It has a strong presence in the BSE as well as a part of S&P CNX Nifty Index (NSE) that shows investors’ satisfaction towards the company and the stability of its stock in the financial market.

Product & Services

Product Portfolio

  • Wind Turbine Generator, Low to Medium capacity (350 kW – 2.1 MW)
  • Wind Turbine Generator, Medium to High capacity (1.5 MW – 5 MW)
  • Wind Turbine Generator Gearbox (500 kW – 6 MW; 160 – 3,500 kNm)

Service Portfolio

  • Wind Resource Mapping
  • Identification & Procurement of Sites
  • Execution of Project Work
  • Erection & Commissioning of Wind Turbine Generators
  • Construction of Power Evacuation Facilities
  • Operation & Maintenance Services

Geographic Presence

Location.jpg

Organization Structure

Center

Mergers & Acquisitions

Investment Details.jpg

Source: Suzlon Valuation Analyst Report

Order Book

Order book.jpg

(*Exchange rate: 1st February 2011: 1 EUR= 1.3742 USD, 1 USD= 45.7950 INR)
Source: Factiva News Articles, Analyst Reports

Client Base in Key Markets

India USA China Australia/NewZealand Europe & South America
Tata Power
Bajaj Auto
Essel Mining
MSPL
ONGC 		John Deere Credit
Edison Mission Group
PPM Energy
Horizon Wind
Duke Energy 		Huaneng Shandong
Guohua
Datang
Honiton
Jingneng
North Union Power 		Australia Gas & Light
TrustPower
Renewable Power Ventures
Pacific Hydro 		SIIF Energies do Brasil Ltda (SIIF)
Servtec Instalacoses
NeoAnemos Srl
Techneira S.A.
Energi Kontoret
Martifer Energy Systems
Iniciativas Energetitas
Eólia Renovables group
Spanish Savings Bank Unicaja
Ayen Enerji

Source: BTM Consult

Market Overview

Market Share

Market Position1.jpg

(*Suzlon 6.9% plus RE Power 2%)
Source:BTM Consult

  • Market Share of Suzlon Wind Energy for 3 years from different sources (Excluding RE Power)
Source 2010 2009 2008
BTM Consult 6.9 6.4 7
Make Consulting 6 5.8 7



Share by Geography

  • India

Suzlon is the dominant provider in India, with a 50% market share in 2009. Enercon and Vestas have aggressively targeted the Indian market over the past 3 years, in part driven by the slowdown in developed markets. Suzlon has maintained its share. In India, many of Suzlon’s customers are small in size, and Suzlon provides the land as well as the infrastructure. This land bank of premium sites is an important barrier to entry.

  • Brazil

Suzlon is market leader in Brazil with a 50% share. Source:MAKE Consulting Report

  • China

Chinese providers (Sinovel, Goldwind and DongFang Electric) are expected to continue to dominate the Chinese market. Suzlon has launched a price competitive product to compete with local players. A small market share would have a material impact on Suzlon due to the large size of the addressable market. Suzlon said in August 2010 that it hopes to generate up to 1/3 of its revenues from China, although it subsequently appears to have reduced this emphasis. The presence of Chinese companies outside China is minimal, held back by the perception that they produce low price, but low quality turbines.

Competitive Advantage

Integration is a key advantage for Suzlon, setting it apart from most of its competitors. This helps to maintain quality standards and compatibility and is particularly important for gearboxes. Suzlon remains the dominant shareholder in Hansen and the two companies have long term supply agreements in place. Hansen is also developing a customised gearbox for RePower. If Suzlon sells its stake in Hansen, some of this advantage may be eroded.

Competencies.jpg

Source:Analyst Reports

Strategic Position

Strategic position.jpg

Source:Analyst Reports

SWOT Analysis

Strengths Weaknesses
1. Integrated business model
2. In house technology and design capabilities
3. Market leadership in India and global presence
4. Prudent acquisitions and alliances
5. Global production
6. Pricing power
7. Diversified product line 		1. Operational risk
2. Growth in assets diminishing growth in profits
3. Unsupportive stock prices
4. Unfavorable ratings
5. Improper working capital management
6. Weak strategic financial management
Opportunities Threats
1. Environmental awareness
2. Government initiatives
3. Untapped offshore market
4. Steady growth in demand
5. Vast coastlines of India and low cost 		1. Intense competition
2. Foreign exchange risk
3. Technology risk
4. Objections to wind power

Recent Developments

S.No Date Details Source
1 23rd April’11 Suzlon has announced the signing of an order with Gujarat State Fertilizers & Chemicals (GSFC) to set up, operate and maintain wind energy projects totaling to 50.4 MW in Gujarat.The projects, utilising 24 units of Suzlon’s S88-2.1 MW wind turbine, will be set up in wind farms operated by Suzlon in the Rajkot and Surendranagar districts of Gujarat. This is GSFC’s fifth order with Suzlon and is scheduled for completion and commissioning by September 2011. ProQuest
2 9th April’11 Recently, Suzlon Energy, India’s leader in wind energy launched a new range of large capacity wind turbine machines suitable for low wind speeds. It has also raised its stake in Repower Systems AG to 95.16% from earlier 91%. The company will initiate a ’squeeze out procedure’ of minority shareholders so that Repower becomes a wholly owned subsidiary. ProQuest
3 6th April’11 Suzlon Energy, through its subsidiary, would have full control over the off-shore wind equipment specialist Repower, thus enabling access to the German player’s portfolio of products and more importantly technology. Added to it, the reasonably rich cash status of REpower and its minimal debt balance sheet could be more effectively utilised by Suzlon. This was not possible earlier, with Suzlon holding a less than 100 per cent stake. Business Line
4 5th,April ’11 Massive, new natural-gas discoveries in the U.S. slashed the price of the fuel that wind competes most directly against. And the recession slowed demand for new power plants of any kind, leading more politicians to question renewables subsidies. Congress has declined so far to pass a renewable-energy requirement. Some major wind-turbine makers are cutting production at some factories. More than a year ago, Suzlon Energy Ltd., an Indian company that is one of the world’s biggest wind-turbine makers, began laying off workers at its plant in Pipestone, Minn., which makes blades for turbines; the plant now is operating at just one-third of its capacity, says Tulsi Tanti, the company’s chief executive. Given the lack of a nation-wide renewables mandate, he says, Suzlon also has postponed plans to build another U.S. factory, in Texas. Factiva


Key Insights

Support from Government of India
The Indian government has enacted legislation giving a tax break for investments in renewable energy twice in the last five years giving a significant boost to Suzlon as it has a 50% market share in India.

Rejection of Wind Turbine Blades
Suzlon has faced the problem of continuous rejection of wind turbine blades and it resulted in the following:

  • Shares dropped 19% because of china issue
  • Shares dropped 84% last year because of US issue
  • Spends $100M to fix cracked-blade problem


Debt Problem Suzlon currently has net debt of USD 2.05bn and faces a heavy debt repayment schedule beginning in FY2013.

  • Monetized 35.22% stake in Hansen Transmissions
  • Realized GBP 224 million through placement of 236 million depository interests at a price of 95 pence per depository interest


R&D and NPD Outlook

  • Suzlon has doubled its R&D expenditure
  • Introduced 2 new products
  • Extensive research in setting up wind mills in forested area


Repeat Orders in India

  • Gujarat State Petronet Ltd.
  • Rajasthan State Miners & Minerals Ltd.
  • Gujarat Alkalies and Chemicals Ltd.
  • State Bank of India
  • Gas Authority of India


Key Executives

Name Designation
Tulsi Tanti Founder, Chairman, Managing Director, Chairman of Employees Stock Option Plan Committee, Chairman of Securities Issue Committee and Member of Investors Grievance Committee
Robin Banerjee Chief Financial Officer
Andris Cukurs Chief Executive Officer of USA
Dan Kofoed Hansen Chief Executive Officer of Australia & New Zealand and Vice President of Sales & Marketing - Asia Pacific
Per Hornung Pedersen Chief Executive Officer of Europe
Silas Zimu Chief Executive Officer of South African Operations
Ashok D'Sa President of India South Asia and Middle East
Arvind Mathew President of Nacelle Manufacturing
Nilesh Vaishnav President of Blades


  • Biography of CMD, Tulsi Tanti
    • Tulsi Tanti is from Gujarat, India where he started his first venture which was in textiles but he found the prospects stunted due to infrastructural bottlenecks. The biggest of them all was the cost and unavailability of power, which formed a high proportion of operating expenses of textile industry. In 1990, he invested in two wind turbine and realized their huge potential. In 1995, he formed Suzlon and gradually quit textiles. This is how he set out on a new path.
    • The $10 billion Suzlon Energy is his wind power based company that has expanded its operations into various parts of the globe. With this successful venture, Tanti is amongst the ten richest Indians and one of the most successful entrepreneurs in Asian region. With a net worth of $5.9 billion, he is the chairman and managing director of Suzlon energy. Tanti owns 70% of the company with his three siblings.


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