• Meldrik@lemmy.wtf
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      5 days ago

      A 5 kWh battery is about 1300 EUR, with a 10 year warranty.

      1-2 EUR is minimum saved pr. day. Let’s just say I only save 1 EUR pr. day. That’s 365 EUR/year. RoI is max 3.5 years.

      • ayyy@sh.itjust.works
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        5 days ago

        Oh I didn’t realize such small capacity batteries were worth the installation effort in a home. Does that 1300 include the inverter and battery management system? What about the installation of the interconnect?

        (I rent so I don’t know much about this stuff, thank you for your time!)

        • Meldrik@lemmy.wtf
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          5 days ago

          I already had the inverter and solar panels for a few years, when I added the battery pack.

          BMS: 300 EUR Battery (5 kWh): 1300 EUR

          I can then stack batteries on top of each other op to 5 batteries in total.

          If you were to get the same setup, excluding solar panels, the price would be 3200 EUR.

          I’m sure that could be done a lot cheaper though, if you only wanted a battery pack and no solar. Then you could probably get a much cheaper inverter.

          I have 2000 kWp solar setup, which roughly saves me about 300 EUR/year.