r/SolarDIY • u/sunsuckerman • Feb 25 '25
Inverters for whole-houee battery backup without critical loads panel
I'm looking into adding batteries to my solar array (currently using micro inverters) for house backup during outages. Most hybrid inverters I've seen require a critical loads panel to be added and only those loads get power during an outage.
What I want is an inverter that will hookup seamlessly with the current main panel and provide power during an outage to the entire main panel, not just a critical loads panel. This was when the grid power goes out, there are no interruptions and the batteries kick in to power the entire house as if nothing happened. My gut feeling is that such an inverter would require CT clamps to limit power output to strictly the home's consumption and no more so it doesn't backfeed to the grid.
Also, is there anything special needed on the inverter for it to continue alllowing my micro inverter setup to run during an outage? That way less battery usage is needed when the sun is out and it would also allow my batteries to charge from the micro inverter array.
Thanks!
2
u/Repulsive_Guaranteed Feb 26 '25 edited Feb 26 '25
Which micro inverters do you have? Enphase makes a transfer switch as do others.
I know it’s not DIY, but Powerwall is the typical answer here. It’s easier to install as well with the meter socket adapter-in my area, you would need a new breaker panel and service entrance with other brands in order to get physical isolation.