Thanks, nice vids! It's true that most homes have very nice windows and insulation, especially modern houses. And we use hot water radiators a lot. However, the other stuff shown there is not even close to a normal German house. Most houses still use oil / gas heating and have no solar panels at all
So don't be too jealous. The EU government also forbids importing cheap chinese solar panels, probably to protect some German manufacturers, so we don't really get a lot of new solar lately. And as soon as someone wants to install new wind generators, you can be sure that a bunch of people will sue them because there's a lot of NIMBY going on here. Also, the new insulation laws that were planned to go into effect soon might be pushed back for 3 years or so to decrease cost of building refugee homes. (Don't get me wrong, we need a place for refugees to live, but why not spend the extra few % to reduce heating costs for the next 20-50 years?)
So the videos depict Germany in a way I'd like it to be, but I know it's not 100% correct.