Updated 1/28/11: Talk about distributed generation! In Germany in 2009, nearly 1 in 5 solar PV systems went on residential rooftops and 60% was installed on small to medium residential or commercial buildings.
The absolute numbers are big, too. Germany installed nearly 9 gigawatts installed 3 gigawatts of solar in 2009, to reach 9 gigawatts of installed capacity.
