My son just did a totally off grid project which used 18 Tesla Powerwalls, that’s not a typo, 18. They worked with Tesla from planning to install. When it got to the end, Tesla said they now needed a diesel generator for backup, or they wouldn’t honor the service contract! Might want to look forward to something else, lol!
@zephyr we have a few power outages. If it’s less than 48 hours, I shut off the light circuits so there’s no intermittent stuff. All my timers are analog, I just reset them. I haven’t had problem, yet, 13 years, lol!
Over 48 hours, I have a generator, but luckily have never had to use it for the garden If it came down to it, I think I’d run it intermittently with auxiliary battery lighting. Heating or cooling could be problem. Fans when the genny’s on.
There are a lot of good, bright camping lanterns that are inexpensive. There’s also a lot of battery inverters, with a good output, that hold a charge for a good while, but the good ones are pricey.