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July 8, 2025 5:50 am
I am doing research for my setup. I have dual 200A panels from a 400A meter. I am planning on dual Gridboss one for each panel each with dual Flexboss21. Each panel would have 10KWh of Solar and it's own battery backup. Essentially, two separate units. I want to add a generator backup. I was planning on getting a single 48KWh Generac generator which outputs 200A that feeds to both Gridboss units... Is this possible? Or do I have to get 2 generators at 24KWh each? I was hoping to only have to get a single generator vs having to maintain / service 2 of them.
Am curious if both Gridboss units can control a single generator and tell it to turn on / off when the grid is down.
July 14, 2025 3:09 pm
I don't understand why you couldn't parallel the start relays to control the generator. Any gridboss calling for the generator to start then gets power from the generator, transfers load and starts charging the connected battery. The other one will just transfer the load, but not necessarily charge the batteries.
