23 September 2012

Why is rooftop solar cheaper in Germany than in the U.S.?

By David Roberts

The installed cost for residential solar power systems in Germany — that is, installations of up to 10 kW — is considerably less than in the U.S. Why? That’s the subject of a fascinating analysis [PDF] from sharp minds at Lawrence Berkeley National Laboratory.

The researchers conducted a survey of German solar installers and reviewed public and private consultant data to get a handle on the German market. The answers they found aren’t as obvious as you might think.

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