Off grid staying cool???

[RoamingKat]

Still not enough....Jim has 1.4 KW.

Or. 1400 w. At 12 V. That is a max of 116 amps. With perfect alignment, in the high summer. (Amps = watts/volts).

Still not enough to drive a little 120v 5 amp AC. It would take 50 amps at 12v. (Don’t forget to count the parasitic cost of the inverter). IF I remember he has 460 amp hour Lead acid technology...so only 230 amps really available on those batteries....

See....the math still says a generator is necessary to run it off grid.

To do this with solar only...you need to generate 50 amps per hour..every hour.. with the sun shining directly onto perfectly aligned panels all the time.....even that would only be for the 2 hours as the sun reaches its zenith...then you need progressively more panels as the sun approached zenith and descends from Zenith. What about 5pm till dark? Maybe you can still get 30 amps at 12v. BUT..that is only 3 amp 120v. The batteries have to do the rest....for 9 hours overnight....or 450 amps till dawn. Not enough amps available to recharge the battery and drive the AC on day two, and it is down hill from there. Each day the batteries are more drained...till in just a couple of days the batteries are too drained to handle the AC at all.

Can’t get around the math. Have to run a generator.