PG&E’s Virtual Power Plant program lets utilities tap into home batteries during grid emergencies. You can get paid, but the payouts are modest and the tradeoff is control. Here’s what homeowners should actually understand before enrolling.

Thinking about adding a battery to your home? Tesla is offering up to $1,000 back on Powerwall installations ordered this winter. Here’s how the rebate works, who qualifies, and whether it’s actually worth paying attention to.