269
Trains in Switzerland Are Now Running Over Solar Panels in a First-of-Its-Kind Test
(www.zmescience.com)
Everything about energy production and storage.
Related communities:
Are Balkonkraftwerke legal in Switzerland?
Yes, and i see them often even in places where theres not much sun.
I don't know whether their owners track their production for estimating ROI, but I'm getting 1.7 MWh/year from a 2 kWp DIY in a nonoptimal orientation with some shading, which is worth it at 0.3 EUR/kWh (ok, if your meter can't run backwards you will need some storage, which has also a cost).