I had been considering buying a 9500W portable generator, but I just don't think it's worth it after doing the math. I've read that one really needs a dedicated backup generator of 20k watts or so to run everything in a typical household, including heat/AC, well pump, etc.
I don't have LP or NG, my house is total electric. So I'd have to go with a gasoline or gas/LP dual fuel portable. Purchasing a portable, getting the breaker box setup for generator input, building a little generator shed with sound deadening to keep the unit somewhat discrete during operation and then paying $100 a day to run it while still not being able to use my heat/AC just doesn't seem to make a lot of sense to me. If it's a 1 hour blackout, I can put up with that. If it's an extended outage, I can hop in the truck and go visit family that has power.
Am I thinking about this wrong?
My 9500 super quiet will run my air and electric dryer or range. Gas water heater and furnace though. I spent just under $400 and added a soft start kit to my a/c to ensure it'll start no problem.
I'm very impressed with what it can handle. If you don't think it'll work for you, save some cash and get a 3500w version.