This is what all these smart fridges and smart everything in our houses should be doing. I don't need a fridge that can tell me that the milk is almost out, but it could be super cool with a dishwasher that can be set to run when the price for electricity is low.

Besides that, if ever electricity cost goes negative I think some electricity companies should invest in storing solutions. I know there are a few out there but most I've seen need more research and large investment. Maybe some can be distributed with making it easier for common folk to store and sell back.