Solar panels and Wind are perfectly economical given that it is sunny or the wind is blowing. We could eliminate the need for baseload power(e.g. natural gas) if we have enough grid storage. But, right now there is hardly any grid storage. There is a lot of focus on things like pumped hydro which (highly geographically limited), and chemical batteries. These and many others(lol flywheels) seem like bad solutions. I would think that grid storage should actually be fairly easy. Why don't we start building massive hydrogen tank farms for power to gas? I would also think you could just build a giant insulated water tank and heat it up. Then, get the the power back with sterling engines. Alternatively, you could keep the water under pressure so that it is a liquid above 100 C and release the pressure and get back the power with steam. Why build lithium batteries when a giant water tank would scale a million times easier(in b4 efficiency)?