If you (as a person) can tolerate cooler temperatures well, you can already do this to some extent using the house itself as a thermal battery.
Run your A/C overnight when power is cheaper and the air conditioner is more efficient (and rolling blackouts are less likely...). Cool your house to say 4-8F cooler than you'd normally keep it (close off some vents in your bedroom if you need to, though personally I prefer sleeping in the cold). If your house is well insulated you may be able to make it through a significant portion of the next day without the air conditioner needing to cut in again.
In the grand scheme of things wood doesn't have a lot of thermal mass, but if there's a lot of it it still adds up. Even as the air begins to warm, the floor and walls still feel noticeably cooler.
Run your A/C overnight when power is cheaper and the air conditioner is more efficient (and rolling blackouts are less likely...). Cool your house to say 4-8F cooler than you'd normally keep it (close off some vents in your bedroom if you need to, though personally I prefer sleeping in the cold). If your house is well insulated you may be able to make it through a significant portion of the next day without the air conditioner needing to cut in again.
In the grand scheme of things wood doesn't have a lot of thermal mass, but if there's a lot of it it still adds up. Even as the air begins to warm, the floor and walls still feel noticeably cooler.