Not only for Cybertruck any more. Tesla just brought Powershare to Model 3 and Model Y, so your car can power your house in a blackout, for up to 2 days according to Tesla. ⚡ The catch: it's only guaranteed on cars ordered Oct 1 or later, and some older cars get it but not all. You also need a Powerwall 3, and it can't sell power back to the grid. Would you pay more for a Tesla that keeps your lights on, yes or no?