"Make money" in many energy markets is a misnomer, because not all markets pay out. For instance, I have home solar in Massachusetts, where I get a billing credit at the end of the month for excess generation. I can't cash that in (so I'll never be paid), but it does give me a "free" way to use electricity in the future. (Yes, I know it's not really free, because there's no return - I effectively lose money to inflation.)

I could do something economically productive with the billing credit, like charge EVs or mine crypto, but I consider that more a knock-on effect than a moneymaker.