> Solar on the balcony railing is very popular right now, mostly amongst apartment renters
i have yet to see a single solar panel on an apartment building in Brandenburg, Germany, whereas a large portion (perhaps even a majority) of single-family and duplex units here have them. Perhaps they're more common in the richer parts of the country where a profit can be more readily turned, but not up here.
That's maybe a problem of east Germany in particular. I see Balkonkraftwerke (small balcony solar arrays, 1-4 modules with a microinverter plugged directly into an outlet) everywhere when I drive through major west German cities, even on rental apartment balconies.
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> Perhaps they're more common in the richer parts of the country where a profit can be more readily turned, but not up here.
These cost about 300-400 euros in local Aldi or Lidl (yes they sell them occasionally) with inverter, ready to plug-in (800W limit). At these prices they're accessible to everyone