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Hello community, can someone help me calculate the wattage of solar panels to be installed in an AC coupled system please? I have three Quattro inverters of 10000VA each in a three-phase system of 30.000VA, can I use a Fronius Eco 27 with 72modules of 400Wp each (28.8KWp)
The Fronius Eco is 27Kw of power max out over three phases and you have 3 x 10kva inverters so I don't see there being a problem. I have never set one up myself but have seen a site running a similar setup.
The panel config is fine you can I think have quite a large oversize your pv using the Fronius but it will only ever put out its rated power.
https://fronius.solarconfigurator.de/solar.configurator/quick not sure what panels you chose but Fronius own calculator is helpful if unsure.
Just make sure your battery bank is able to handle it as was mentioned.
