I have investigated this thoroughly, and even had contractors to the house to give me estimates. The big names in this niche all have shortcomings...Tesla, Generac, etc. Unless you have a nearby certified tech, forget it. I had contractors here who didn't even understand what I was asking for.

The big issue is battery storage. You can go the DIY route, and the best supplier is a company called Big Battery. A single Rhino supplies 14kWh. But I appreciate an all-in-one integrated unit, and I believe the EcoFlow Delta Pro Ultra is the best on the market right now. You can add battery modules for however much reserve you need. You could easily power a large home for a week if necessary.

The problem with solar generators is the lack of amperage, which is especially important if you have a well -- enough to handle startup power. The EcoFlow has a module that allows for two separate units to be hooked together, that supplies 50 amps. Otherwise, a single unit maxes out at 30 amps.

Ultimately, I decided not to do it, for two reasons. First is the cost. In order to have an EcoFlow system big enough to handle our needs (subtracting things like a/c and hot water) for about three days, it would cost in the neighborhood of $25,000 installed. The second reason is if any part or component fails in the system, you're dead in the water waiting for service while the power company has restored service to your house. I'm not willing to gamble my home on a fifty cent part.

They do have an auto module that switches automatically in the event of a power outage, but it can't handle a 50 amp system. That means you'd have to have a contractor install a manual switch...not an issue if you're home when it happens.