@randahl What you're doing is called cherry picking. We had multiple days with low wind during the previous 7 days. Covering that with batteries is super expensive and don't forget about the grid when you get 100% one day and 5% the next when it's not utilized at all (hint you build more grid than you have to). Wind is a compliment, but nothing you can build a modern civilization on. I've not even started with the economy of windfarms which is just - waste of money.