The sun could be the world’s largest source of electricity by 2050, ahead of fossil fuels, wind, hydropower, and nuclear according to reports issued by the International Energy Agency.  Achieving this goal will require policy commitments by China, the United States and other nations where solar installations are cost effective.

In Munich Germany, a city of 1.4 million, intends to have 100 percent clean energy supply by 2025.  The city-owned utility company is investing not only on in local-green production, but also in projects such as a solar plant in Spain and a wind farm in the North Sea.  Electricity from those sources would be fed into the Europe-wide power grid.