The solar panel manufacturing industry is fine. Healthy year on year growth at a rather spectacular rate with absolutely no sign of that changing any time soon (the opposite rather). Demand world wide is strong; and growing. Both for grid solar and roof top solar. Hundreds of gigawatts added every year and that's trending towards terawatts.

The bit of the industry that is at risk collapsing is the VC funded companies that "help" their customers get solar roofs by talking them into dodgy loans or leases they can't afford. If people can't pay off their loans or cancel their lease, these companies end up with a lot of solar panels that are stuck on roofs not generating any monthly recurring revenue. Removing them means spending more money and the second hand value is probably not amazing.

Add a lot of dodgy sales practices to the mix and the same kind of sleazy practices that banks used to talk people into mortgages they couldn't afford before the housing bubble burst in 2008 and you have a nice recipe for a company sitting on a lot of debt that is at a high risk of defaulting and not bringing in the revenue that they thought they were going to get. They'll create a big mess by twisting lots of arms to get some of their money back and bankrupting some families in the process and they'll get bogged down in expensive court cases for years to come. So, what's collapsing is the notion that these companies that took billions in investment to fund all this are going to turn into nice little rainbow pooping unicorns.

This kind of economical Darwinism is fine. Bad businesses not making it and taking some investors with them is not going to be the end of the world. But it's not going to slow down solar panel production and deployment. The US has plenty of underused roof real estate, and most of it us at a great latitude for getting some decent energy out of solar. With US grid infrastructure being as bad and expensive as it is, there are going to be plenty of people looking at getting some panels on their roofs. Just like every else in the world.