I had looked at dry storage of heat using NaOH a while ago, I can't recall the energy density but it's on wikipedia. The bigger problem that I found was that t

I had looked at dry storage of heat using NaOH a while ago, I can't recall the energy density but it's on wikipedia. The bigger problem that I found was that the efficiency was horrible. I wonder if having it in solution resolved this problem, if that's the case then there's going to be some applications for this with even a reasonable energy density.