These panels as-is have such a short lifespan you'd have to replace them on a daily basis, and the efficiency appears to be several orders of magnitude lower than PV, so this is not remotely close to being cheap. Maybe this line of research will lead to an actual usable technology a decade from now (and by then battery costs will have come down enough to make hydrogen make even less sense than it currently does), maybe it's a total dead end. It's certainly not a breakthrough right now.
