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Old 04-29-2022, 10:36 AM   #7
Bill
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Location: The mountains of Scottsdale, AZ, and the beaches of Maine
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Originally Posted by rich2468 View Post
To accomplish what you've stated you'd like to accomplish (the ability to run the A/C from battery power) ... To replenish the charge of your battery bank, while running the A/C at about the same rate that the A/C (running via Inverter) is discharging it; you'll need around 1200 Watts of solar cells.
Rich -

I'm not sure where the 1200 watt figure comes from. In 2007, I think TM was using a Coleman Mach 13,500 BTU air conditioner, which seems to require at least 1800 watts when running. Adding a true-sine inverter efficiency of 85% (admittedly a SWAG) ups the ante to around 2100 watts.

I think I found the YouTube channel you mentioned, but although it is titled Solar and A.C. Upgrades, I can't find anything about the air conditioner. Are we on the same page?

All your other points seem spot-on.

No matter what, it is a lot of power.

Bill
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