What if photovoltaic technology just isn't actually ready for showtime? i.e. it may need more research, so there's a clear recycling plan for each unit. We've

What if photovoltaic technology just isn't actually ready for showtime? i.e. it may need more research, so there's a clear recycling plan for each unit. We've seen this sort of thing before - being too quick to proclaim X is ready to take over the world, without thinking of the consequences first. See autonomous cars.