> I think that really depends, I don't think you can compare 99.9% reliability power to 95% reliability power. I question whether you can call any renewable 95

> I think that really depends, I don't think you can compare 99.9% reliability power to 95% reliability power. I question whether you can call any renewable 95% reliable. The capacity factor of solar in the US has averaged 25% and wind at about 35%: * https://en.wikipedia.org/wiki/Capacity_factor#United_States https://en.wikipedia.org/wiki/Capacity_factor#United_States One can certainly argue a large enough grid can shuffle energy to and from across large areas to create 'aggregate reliability' of course.