For context:
"Arizona households use 66 million Btu of energy per home, 26% less than the U.S. average.
The combination of lower than average site consumption of all energy, but above average electricity which is relatively expensive, results in Arizona households spending 3% less for energy than the U.S. average."
source: https://www.eia.gov/consumption/residential/reports/2009/sta...
So people in Arizona are using a lot less energy than the rest of the country, and only pay marginally less. Someone is making even more money on the energy bill.
And yes, solar is not perfect, and sometimes one needs some extra electricity on the grid (peakers). For a 16,000 household community, maybe batteries should be considered ? It is not like they have an heavy industry requiring high energy consumption 24/7. It is a small community (houses, and RV parks).
For instance, a Tesla Megapack 2 costs $1.5M and delivers 3.854 MWh so to replace the 98MWh gas peaker, we would need 25 x Megabuck 2, for a cost of $37.5M. How much the gas peaker is going to cost ? We can run the cost on maintenance too, which I suspect would also favor the battery solution.