Wind Turbine (WTG) Companies are increasingly facing competition from a host of new entrants into the industry.The dominants firms like Vestas,Gamesa,GE,Siemens and Suzlon have seen their stock prices fall steeply due to declining revenues and margins.A number of Giant Industrial Firms have entered the Wind Energy Industry to diversify from the slow growth in their own sectors.Korean Shipbuilders have invested heavily in the Wind Turbine Manufacturing en masse to take advantage of the secular growth of Wind Energy.Chinese companies have risen from virtually nothing 5 years ago to become Top 5 Global Wind Energy Players.The Chinese companies have seen massive growth on the back of a strongly growing domestic market.China which now accounts of 50% of the world Wind Turbine market in 2010 is expected to see continued strong growth with the Chinese government setting a target of more than 100 GW by 2015.Here is a list of the major Wind Power Companies in the World.

Solar Inverters are a crucial component of the overall solar system accounting for around 10% of the overall costs.Solar inverters connect the solar panels to the grid converting the DC to AC which is used by the grid.Solar inverters have become highly sophisticated with features like optimization and monitoring etc.The efficiency of solar inverters are a major factor in their purchase as well as the quality and reliability.Inverters comes in various sizes and can be as large as 1 MW for utility applications.Unlike Solar Panels,the Solar Inverter Market is much less crowded though competition is growing as the size of the market increases rapidly.The ~$2.1 billion market in 2009 with 7 GW of installations has increased by more than 130% to around $5 billion in 2010 as the solar panel demand globally increased to around 17 GW.Note Solar Inverter Companies have done much better as competition is much lower and the annual price declines in solar inverters has been much lower at around 10% compared to the 50% decline in solar panel in the last 2-3 years.Here is a list of the major solar power inverter companies

Solar Thin Film Technology has been growing rapidly despite falling costs of the mainstream Photovoltaic Crystalline Silicon Technology.While a number of Weaker Hands in Thin Film have downed shutters,Thin Film Producers continue to grow and expand.The massive growth potential of Solar Energy makes it possible for both of these PV technologies to flourish.Thin Film Technology unlike c-Si has a number of variants.Amorphous Silicon (a-Si),Copper Indium Gallium Sulphide (CIGs) and Cadmium Tellurium (Cd-Te) are the 3 main types of Thin Film Technology.There are a number of manufacturers of all of these 3 types of Technology.CIGs Technology is said to have the most potential in improving efficiency and competing with c-Si,however Cd-Te is currently the top dog as the world’s biggest solar producer First Solar currently uses this technology.a-Si Technology is not that hot with low efficiencies however Oerlikon and Sharp are pushing ahead with developing this technology.Here is a list of the world’s top Thin Film Companies.

Nuclear Energy in India is going to quadruple in the next decade as India’s power hungry economy requires increasing amounts of energy to sustain its growth.India’s Electricity Capacity is targeted to reach 450 GW from around 160 GW at present which would require increasing the supply from all renewable energy sources as well as non-renewable sources.While Thermal Power will continue to remain the top dog with 60-70% of the capacity,Nuclear Power which forms just 3% of the current capacity is also poised to grow exponentially.India’s Nuclear Power deal with USA have paved the way for India to again part of the civilian nuclear club which would allow import of uranium fuel and nuclear technology.It would also allow Nuclear Equipment Producers like Toshiba,Areva and GE to set up Nuclear Power Plants in India.Note India has a long history of a home grown indigenous nuclear power program with nuclear power capacity of around 4.5 GW.Despite facing low utilization in recent times due to inadequate supply of uranium fuel,the nuclear energy industry has continued its growth path.India is the only country spending large amounts in Thorium Fuel R&D as the country has huge deposits of the element.

Boeing,the US Aircraft and Military Equipment Supplier had decided to sell its high efficiency solar cells in 2011.Note Boeing Subsidiary had created a record a couple of years ago with a 39.2% multi junction solar cell.These cells are primarily used in spacecraft where low space requirements require the use of high efficiency cells without major cost considerations.Spectrolab has continued to improve on the efficiency of the cells reaching 41.6% in a NREL Lab Test.Boeing has claimed a 60% marketshare of the space solar cell market and hopes to replicate that success on Earth as well.Boeing had earlier said that it would set up a 300 MW capacity by 2010 and market solar cells to CPV companies such as SolFocus.Will Boeing be Successful at Selling High Efficiency Spectrolab Germanium Solar Cells

Siemens has planned to increase its Environmental Revenues to Euro 40 Billions by 2014 which is quite a big jump considering the large base.GE is its biggest competitor which is also rapidly increasing investment and research into Renewable Energy.Areva,ABB,Samsung,LG,Hyundai,Toshiba,Sharp,Panasonic,Mitsubishi are other industrial giants looking to rapidly increase revenue from Clean Technology.Siemens has a definite technological and incumbent advantages however the competition is quite formidable.Siemens has made important wins recently in the field of high speed railways,new generation high voltage DC electricity transmission,offshore wind etc.But it lacks size and scale in the fields of nuclear and solar energy and has little presence in the area of Energy Storage as well.While Siemens has bought Soliel in the Solar Thermal field,it lacks a Solar PV product portfolio.Siemens however remains a good long term safe green investment in a volatile cleantech sector.