Relative newbie to the Victron universe so please be gentle. I’ve installed a Multiplus II 12/3000, Smart Shunt, MPPT and DC/DC charger. I’ve also installed 600w of Solar. It’s been very hot in Atlanta this summer and I’m running a small portable AC unit in the RV to keep the heat and humidity down. It’s plugged in to shore power fed from the house.
What configuration would I use to enable sharing of the PV with the grid AC? Total load is around 1,000w and I have excess solar available.
I can’t enable ESS in the US but surely there’s a way to use the solar without it. The Hub-1 self consumption Assistant is depreciated and I don’t think I can use it without a grid code.
Thanks for reading
Do you have a battery? If so, how many kWh or Ah?
Without ESS it is an either/or proposition, meaning you need to consume power in the RV and send the excess to charge a battery.
ESS in an RV is not a recommended configuration, and offsetting your home loads technically requires a grid interconnection agreement with your power company.
LiFePo 400ah battery.
I guess I could lower the input current threshold and use the boost assist function but there should be a more elegant solution.
Can’t the Multiplus be configured so it doesn’t have a reverse flow into the AC grid?
The trouble is, the control to dynamically invert enough to match the solar production and loads is not precise as the solar can be so variable, so sometimes the control undershoots and draws extra grid power, sometimes it overshoots and power goes back to the grid.
Thanks for everyone’s help. This is much more complicated than I anticipated.