And most of all, thermal storage, which we can achieve today with heat pumps and water heaters by simply insulating houses well, and then incentivizing a market

And most of all, thermal storage, which we can achieve today with heat pumps and water heaters by simply insulating houses well, and then incentivizing a market protocol to let people take advantage of better pricing automatically, if they wish to. But really, chemical batteries will be at the TW scale by 2030 and we will have lots of chemistries for lots of varied applications and demands.