I finally installed my two panels, plugged them in and they started producing right away.
250,- EUR for the whole 500W setup, no battery.
It’s really more of a hobby project but it feels great. I opted for the modern thin flexible panels and they are super easy to install.
so jelly. honestly though they could legalize it here and atm I could not do anything. Still someday it would be neat if things somehow get better.