This is a win - win arrangement that allows investors to help further solar energy use, creating a very green investment opportunity. (earth911.com)
As solar energy use continues to grow across the world, even the more expensive systems are coming down in price, making them sensible for more people. (solar-estimate.org)
... In fact, wind and solar energy use more copper than conventional forms of energy, such as coal, natural gas, and nuclear power plants. (freerepublic.com)