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…w%20Year's%20Resolution.htm 404 - File not found]</ref> However, installed cost averaged €1,300 per kilowatt in 2007,<ref name=gwec2007/> compared to € …ew generating capacity in the United States for coal and natural gas: wind cost was estimated at $55.80 per MWh, coal at $53.10/MWh and natural gas at $52.