That’s not a tax break specific to solar installations. In fact, it’s not a tax break at all. It is just a consequence of how German tax law is constructed. It

That’s not a tax break specific to solar installations. In fact, it’s not a tax break at all. It is just a consequence of how German tax law is constructed. It has nothing to do with subsidizing solar installations. If you register your private solar installation as a business, you are exempt from paying sales tax if you also pay revenue tax (= sales tax) for the energy you are selling. Just like the baker buying her oven, if a business buys something for the business, it is (usually) exempt from paying sales tax for it – since sales tax is supposed to be only paid once, not several times. You know, what annoys me is ignorance about the actual policies and then pontificating as if you have it all figured out.