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From your link...
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On average, therefore, wind turbines do not generate near their capacity. Industry estimates project an annual output of 30-40%, but real-world experience shows that annual outputs of 15-30% of capacity are more typical.
With a 25% capacity factor, a 1.5-MW turbine would produce
1.5 MW × 365 days × 24 hours × 25% = 3,285 MWh = 3,285,000 kWh
in a year.
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Seems like they are more realistically talking about 25%. I would love to see some real, measured and published annual data like there is from some of the Euro wind farms. But it seems this info is not published.. I found the 7 day rolling samples I posted earlier from the Pacific North West. Which didn't look good. But that is too small a sample to hold against them. Off shore UK in the Atlantic seems to hit 40%. Any data from farms in the midwest US is hidden.
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