I subscribe to a solar farm through https://powermarket.io and the rates seem better than the standard offer (they are supposed to be 15% lower, seems about right.) Only challenges: getting a spot in one, and the fact that they bill you as the power is produced and the power “banks” for future use. So I get high bills in the summer and almost nothing in the winter. But it all works out. And it seems fairly real that I am actually buying solar power for my use (albeit indirectly.)