You are mixing up Tesla and SpaceX. SpaceX already produces solar panels for the 10,000+ satellites it has in space.

> SpaceX already produces solar panels for the 10,000+ satellites it has in space

No they don't, they procure them from Taiwan Solar Energy Corp. They do not produce or manufacture their own cells, they're using off the shelf components.

Cells != panels. And why do you think there would be any issue scaling up what they have done for already the largest constellation by a large margin?