Thus you can easily maintain redundancy at a very low overall cost. In the long run, we're all dead. John Maynard Keynes
This is in any case very much a secondary point. The greater point made above is that the wider the dispersal of windfarms and the larger the grid they are connected to, the less overall redundancy is required to provide a stable supply/demand platform. "It's a mystery to me - the game commences, For the usual fee - plus expenses, Confidential information - it's in my diary..."