For the first three weeks of September 2014, a large anticyclone was resting over the main part of the United Kingdom.
During such weather, which is quite common, air speeds are low. As a result, the thousands of wind turbines in operation, rated collectively at 10GW, contributed 0.4GW of electricity demand.
Over this period, the French interconnector supplied five times that amount of electricity - 2.0 GW, from nuclear plants.
All of the power data is presented clearly on the Gridwatch website, but it appears to be beyond the comprehension of politicians.
How has the failure of the wind turbine programme escaped the scrutiny of the BBC and Westminster?
Based on a letter in the national press from PHS, Cheshire.
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