@Bluto & @Packetcap

For all the reasons you outlined, I couldn't make the numbers work when we designed and built our house in 2006, and it has a huge south-facing rooftop surface with nothing blocking it. The best I could do on paper -- and those were best-case numbers I didn't trust -- was break-even at the estimated 30 year panel replacement timeframe.

Instead I went with a 24kW Generac and through multiple hurricanes I've learned I can run absolutely everything for 8 days on 200 gallons of LP... three HVACs, even the pool pumps (which, in the case of a hurricane, prevents the pool from overflowing -- which translates into the yard mixing with your pool).

Someone mentioned new battery tech. I found the following interesting (because Crown is a well-respected name in high-reliability batteries for RVs and commercial/industrial systems) -- haven't heard anything more about it, though:

https://www.prnewswire.com/news-releases....

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