https://www.amazon.com/JJN-Efficiency-Coversion-Rooftop-Off-Grid/dp/B0DHWVDP1D?th=1
a 70usd n-type 100 watt solar panel makes a kilowatthour in ten hours of full sunlight, which costs 35 cents here.
maybe 300 watthours a day at .035 cents per watthour is 10.5 cents per day. it's, like, five dollars in electricity on a terribly hot day. so once every fifty days this 100w solar panel could have time to fill a battery to run the ac. five dollars gets 14.3 kwhr and 5.7 hours of ac at fifty percent duty cycle on and off every ten minutes seems ok. i'm guessing the ac takes 5kw.
to charge enough each day to run the ac that day i will need, like, seventy of these panels.
https://onlinesolartools.com/panel-orientation
i can move the panels twice a year from 47.86° to 27.86° in the summer and always pointed south
https://footprinthero.com/peak-sun-hours-calculator
the above site tells me to expect 5.9 hours of peak sun per day.
14.3 kwhr/5.9 hr = 2.4 kw
24 100 watt panels is 1680usd at the above rate and they could be suspended on poles stabilized with guy-wires in my backyard
or 6 400 watt panels. 450 seems like a common size, and i'd just need six of those. i'd get a battery that could fit two days of ac in it. that's 28.6 kwhr but with 20-80% headroom i'd want 48kwhr and at 80usd/kilowatthour i could collect 3840usd of iron phosphate batteries. the inverter will be a thousand.
