This doesn't really work in a lot of places in the world, because the base things are already too expensive. Most of the world does not have HVAC at home. They don't generate heat with electricity either. Car battery chargers only matter if you own an electric car, own a house and have a charger at home. None of this is relevant to most people in the world. It might be in a couple of decades, but not yet. And this includes France.