Yes, and I replied to that. The used materials are changing. The hard ones for lithium chemistries are being replaced and there are more storage technologies th

Yes, and I replied to that. The used materials are changing. The hard ones for lithium chemistries are being replaced and there are more storage technologies than lithium. Given all the ways to improve/grow both mining and the chemistries of batteries and new storage technologies I wouldn't bet against the reduction of cost of storing electrical energy as demand increases.