We need to build way more PV factories. But building the wrong kind would be counterproductive. If perovskites end up way better, it would be wasteful to have b

We need to build way more PV factories. But building the wrong kind would be counterproductive. If perovskites end up way better, it would be wasteful to have built out too many new silicon cell factories. While building out storage now would be a mistake, we should be building factories for storage like crazy. Every kind. We don't know which storage methods will win, but we can't afford to wait and find out.