Excellent! When I was in the market, the solution wouldn’t run without the grid. Good for saving money but definitely not a back up if the power grid goes down.
A stand alone design has to be provide a decent level of power. Or you have to be smart and unplug everything in your home except the few items that you want to charge or to run during a power outage. Or maybe a second power distribution system — main AC and then AC backup. Hey, why not DC in the house? A converter from solar panel DC to low/safety DC would be simpler versus an inverter that takes panel DC converts it to AC and then the AC is converted back to DC (usually at the load and in the device that you are powering). You might even be able to run some AC loads off of the DC power or have some kind of OR configuration. Straight AC motors can’t run off of DC but your average personal computer and other like devices can probably run directly off of DC by plugging the AC cord into your “DC bus.”
I don’t have solar but am interested. Thanks!
Sunny Boy has been doing this for at least 6 years. Limited to one 120 volt outlet and 1500 watts. If your inverter is a 3 to 7 kw unit it will deliver energy in an outage as long as the sunlight provides 1500 watts or more. If you have a big cloud or storm come over, expect to go down for that period of time.
Can’t run anything 240v like a well or hot water heater.
For 240 you need hybrid inverter and batteries
I can help any freeper in those paths. Doing that, been there and still am.