Depends on time and place. I know there's spot price contracts you can get that will -at times of day and year- go negative. That is to say, they'll pay you to

Depends on time and place. I know there's spot price contracts you can get that will -at times of day and year- go negative. That is to say, they'll pay you to use electricity (or alternately, they'll actually charge you if you feed in solar power). At other times of day the price is positive again. It takes a bit of savvy -and panels, and batteries- to actually make optimal use of this, I figure. That said, prices sometimes going negative, however the circumstances, is definitely a bit of a change.