Another Fact that the Wind Industry does not want us to know!
John Curtis, a professional engineer, explains: “The turbines have to be rotated frequently so that the main shaft does not take a ‘set’ and bearings do not develop ‘spots’ in their tracks. This makes sure that lubrication is maintained. The forced rotation takes power from… the grid but this power is not charged for. Usually, the turbine are paid on gross power output, not net. Some turbines have diesel generators to run them when there is no wind. There has been some suspicion that any surplus power from the diesel generator is added to the power output of the plant.”
So now you know!