Polysilicon or refined silicon is the raw material behind most of the world’s consumer electronics.Polysilicon is used to make both solar and semiconductor silicon wafers.Silicon wafers are used in making chips which are used by the Intels and Samsungs of the world while Solar Wafers are used in making solar crystalline panels used in generating electricity from the sun.Most of the world’s major solar energy companies used c-Si Technology in making solar panels.Polysilicon is an energy intensive process which requires cheap electricity.The polysilicon is produced mostly in the western countries like Japan,USA and Germany now.However the rise of solar panel producers in Asia has given rise to large volume Asian producers of polysilicon as well.Note Polysilicon production is concentrated in the hands of 8-9 companies unlike solar panel production which is done by hundreds of companies.This is a capital intensive process and requires around 2 years to complete a single plant.Semiconductors require higher purity levels of Polysilicon than the solar industry.The massive increase in demand from the solar industry has led to massive growth in poly production.Here are a list of the main polysilicon companies in the world
India’s Transport Policy is an unmitigated disaster with traffic congestion frequently killing people.The lack of roads and traffic planning has made transport in Indian cities a daily monstrous headache for commuters.The use of modern transport which does not cause pollution and reduces congestion is the need of the hour.The government seems to be moving slowly in that direction.While MNRE had announced a capital subsidy for Green Transport earlier,the Finance Minister cut excise and custom duties on Green Vehicles as well.India’s Union Budget did not have much for the Green Industry except a piffling Rs 200 crore fund for the environment and the cuts of duties for EVs.
Solar Wafer Companies are mainly concentrated in Asia specifically China and Taiwan.Cheap labour,lower land and capital costs as well as presence of major customers has made China the No.1 Solar Wafer Producer in the world.Despite most of the polysilicon being produced in Europe and USA,China leads the way in wafer production.Note semiconductor wafers in contrast are mainly produced in the developed countries like Japan,USA and Germany.The structural forces of the crystalline silicon industry is forcing vertical integration with cell producers making wafers and wafer production companies making cells.However there are a few companies which predominantly concentrate on supply solar wafers to solar cell manufacturers.Here is the list of the main solar wafer producers which have shown stunning growth in the last few years.
Solar Thermal Technology has been facing tough competition from its sister Solar PV Technology in recent times.Despite strong government subsidies and support,numerous drawbacks have contributed to this Technology losing out to Solar PV in a number of projects in the US notably by Tessera.However a number of startups and big conglomerates continue to make huge investments in this technology.Spain and US are leaders in implementation of this Solar Technology type,however others like India and China are to building CSP plants as their energy needs continue to grow.Note like Solar PV,there are a number of different technology types for CSP like Power Tower,Parabolic Troughs,linear fresnel technology and Stirling Engines.Here is a list of the most important Solar Thermal Companies (Technology Providers cum Project Developers)