I’m pretty sure @ruud@lemmy.world has said before what he uses. I thought back in the day it was publicly listed with the expenses, but I couldn’t find it.
The most recent update I found was here: https://lemmy.world/post/75556
But it could definitely be old information, I’d take the other commenter’s advice and ask in the admin channel to be sure.
In fairness, my understanding is that there are a lot of complications with adding distributed power to existing grids. That doesn’t mean it shouldn’t happen, just that there are engineering and safety challenges when power is coming from “everywhere” vs centrally.
And of course, there’s a lot of energy companies lobbying against clean power sources as well.