Germany has an important coal industry and lobby and remains a large user of coal.
There's useful research done around the world.
I think where German companies felt they might maintain a manufacturing presence was in machinery infrastructure - whether the machines that populate the factory floors that manufacture either cells of modules or machines (say, inverters) or that are used downstream of electrical production in a module.
I was last in this space some yrs ago but it's not clear to me just how much of a presence German companies have been able to keep in either.
One industry web site is here:
and if I wanted to ascertain German presence in the industry (including some aspects of research) I might look through this site.