If solar prices keep trending the way they're trending, then we may have way more solar than we have anything useful to do with during peak sunlight hours in th

If solar prices keep trending the way they're trending, then we may have way more solar than we have anything useful to do with during peak sunlight hours in the relatively near future. Using iron as a big chemical battery seems at least plausible. More so if you get to reuse existing infrastructure to turn it back into energy.