Balcony solar is absolute awesome in germany. I get about 30% return on investment per year on my small solar panel. Hard not to do it. I have no idea why it is still a little niche
A program like this shouldn't take more than a weekend to cover all the issues including a Hands-On lab. A second weekend could be added for ground mounted solar setups.
I'd be willing to pay a couple hundred bucks get such a ticket.