• eleitl@lemmy.zip
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      5 days ago

      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).