this post was submitted on 03 Jun 2026
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Trains in Switzerland Are Now Running Over Solar Panels in a First-of-Its-Kind Test (www.zmescience.com)
submitted 4 months ago by sabreW4K3@lazysoci.al to c/energy@slrpnk.net
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[–] eleitl@lemmy.zip 0 points 4 months ago* (last edited 4 months 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).