Companies that have solar and wind power generators tied into the grid are part of a major growth area, according to Pike Research. Renewable Distributed Energy Generation (RDEG) revenue from sub-utility scale operations grew 76 percent globally between 2007 and 2008. Pike Research puts total revenues at $29.9 billion at the end of 2008, and it predicts the market to more than double in value to $60.6 billion by 2013.
