As the total amount of solar modules produced has increased over the past few decades (from left to right), the price per watt has also fallen. Prices 1975-2009 are from Nemet (2009), and prices for 2010 and 2011 are based on data from Navigant and Bloomberg New Energy Finance. Red circles indicate the expectations from Near Zero's survey, for solar module prices at 300 GW and 600 GW of total installations (also called cumulative capacity). Also shown for reference in blue is the module price target of the Department of Energy's SunShot Program. (Credit: Near Zero) |