Thanks, with solar and wind there do seem many times when there is a surplus of energy. I'm thinking somethings like water cracking to H, Aluminium smelting or

Thanks, with solar and wind there do seem many times when there is a surplus of energy. I'm thinking somethings like water cracking to H, Aluminium smelting or Steel Furnaces could be done with such supluses but Ammonia sounds like a good one for the list too.