18 Jun '11, 4pm

German rooftop solar price *averages* less than $4 per watt

German rooftop solar price *averages* less than $4 per watt

This post originally appeared on Energy Self-Reliant States , a resource of the Institute for Local Self-Reliance's New Rules Project . Earlier this spring I shared a graphic illustrating the dramatic fall in distributed solar PV prices in Germany , down to $4.11 per Watt installed, for rooftop systems under 100 kilowatts. As it turns out, the graphic was out-of-date. In Germany, the average installed cost for rooftop solar PV under 100 kW is $3.70 per Watt . It's a 50% drop in price since 2006, an average of 13% per year. For comparison, here's the average installed cost for under 10 kW rooftop solar PV in the United States, by state. Chart is from page 19 of the brilliant report, Tracking the Sun III: The Installed Cost of Photovoltaics in the U.S. from 1998-2009 (large pdf). This is 2009 data, of course, and is comparing very small PV systems (< 10 kW) to small commerci...

Full article: http://www.grist.org/article/2011-06-16-german-rooftop-so...

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