Solar Roofs are a niche area but is growing in popularity with the entry of more and more companies selling products tailormade for this area.What are Solar Roofs exactly – does it mean a Roof with Solar Panels installed on it or something else.Solar Roofs are not roofs where solar electricity is generated by putting in solar mounting/racking systems and mainstream solar panels,rather they are roofs where specialized solar products called solar shingles are installed.Solar Roofs can also mean a roof where Building Integrated Photovoltaic products are installed.Some companies make BIPV products like flexible solar panels or organic/dye solar cell panels ( these are niche companies).
Sharp is the biggest company in the world in terms of making revenues from sales of solar panels so it seems counterintuitive for someone to recommend not buying Sharp Solar Panels.However this Japanese Conglomerate has been losing marketshare rapidly to cheaper Asian competitors.Sharp due to its factories in high cost locations makes solar panels at a much higher cost and sells them at much higher prices as well.The reason is that they manage to sell so many solar panels is that consumers are not educated about other better options and the other solar panel companies don’t have the distribution networks.Note Sharp has been trying to diversify away from crystalline solar panels to thin film solar panels.The reason is that they are losing the competitive advantage to Chinese companies like Trina Solar and others.
The radioactive fallout from the Fukushima Nuclear Disaster is not only keeping Japan on high alert but also its neighbours.China has said that it has detected trace radiation levels from the spreading radiation in its provincial regions bordering Japan.Note most of the Chinese economic centres are situation near the eastern coast near Japan.Its 2 main cities of Guangdong and Shanghai have also detected trace levels of radioactive elements like iodine and caesium.Note China has turned back vessels and people from Japan in the last week because of high radiation levels.
The Fukushima Nuclear Disaster shows more dangerous radiation signs each day.While Plutonium Poisoning was found in the soil near the Nuclear Reactors,a more alarming development is the high levels of Caesium being found in areas far away from the plant.Note Caesium is a heavy element which is found in areas of radioactivity like Iodine 130.Caesium has a much bigger half life than iodine and can cause radiation poisoning for a much longer period.
It remains to be seen whether the top corporate executives of India’s topmost conglomerates get prosecuted over these wrongdoings.Essar and ADAG are amongst the top 10 conglomerates in India with wide ranging operations with billions of dollars in revenues nationally as well as internationally.The Supreme Court has been instrumental in bringing this case so far as the government seems totally coopted by corruption.It has been frequently been castigated by the Supreme Court and has shamelessly defended corrupt bureaucrats and politicians.It remains to be seen how this 2G Telecom Case ends.If justice is done,then it may provide a new chapter to India’s corruption ridden story till now.
Hydroelectricity power plants are the biggest power stations in the world dwarfing the biggest nuclear and coal power projects.The world’s biggest power plant is the Three Gorge Dam in China which at 22.5 GW is more than 50% larger than the 2nd biggest power station in the world.Most of the world’s largest hydroelectricity plants in the world are situation in China and South America.North America also has some of the larger hydro power plants.China is the by far the world leader in hydro power plant capacity with around 200 GW which it aims to double to around 400 GW by 2020.Other major hydroelectricity countries are Canada,USA,Brazil and India.Note Hydroelectricity is responsible for producing around 20% of the world’s electricity.Here are some of the major world hydroelectricity power plants .