If that's the situation, then you have just demonstrated that you can't do it like that. Solar plus battery. That's fine. You look for something else. For examp

If that's the situation, then you have just demonstrated that you can't do it like that. Solar plus battery. That's fine. You look for something else. For example you get a contract to fund a gas-powered humongous plant from the companies whose mandate it is to not run out of power. (but you probably can't get gas for that plant on a one-off basis - you'll have to store.) The point is to do that use case planning (and fund a plant based on the results.) Hopefully nobody is really getting themselves in that situation.