The point is, a failing turbine makes not a noticable dent in the electricity production when there are tens of thousands of turbines. At that scale, the number

The point is, a failing turbine makes not a noticable dent in the electricity production when there are tens of thousands of turbines. At that scale, the number of turbines which are shut down for failures/maintenance becomes a constant. A huge power plant going down in an instant is another problem however.