Appliance
How many solar panels to run an 8,000 Btu window AC?
An 8,000 Btu window AC uses about 4,266 Wh a day. At the U.S. average of 4.98 sun hours that takes about 1,142 W of panels and a 5.27 kWh battery for one day.
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| Value | |
|---|---|
| Model used | BLACK+DECKER BD08NWES 8,000 Btu/h window air conditioner |
| Daily energy | 4,266 Wh |
| Basis | 533.3 W × 8 h/day (assumed use) |
| Panel watts (U.S. avg) | 1,142 W |
| Battery, 1 day | 5.27 kWh |
| Source | manufacturer / ENERGY STAR |
By state
| State | Panel watts |
|---|---|
| Arizona | 870 W |
| Colorado | 1,005 W |
| Wyoming | 1,061 W |
| Idaho | 1,090 W |
| Missouri | 1,131 W |
| South Dakota | 1,170 W |
| Montana | 1,195 W |
| New Jersey | 1,221 W |
| Maine | 1,250 W |
| Michigan | 1,272 W |
| Alaska | 1,794 W |
Questions
How many solar panels to run an 8,000 Btu window AC?
An 8,000 Btu window AC uses about 4,266 Wh a day. At the U.S. average of 4.98 sun hours that takes about 1,142 W of panels and a 5.27 kWh battery for one day.
Where does the daily energy come from?
533.3 W × 8 h/day (assumed use). ENERGY STAR lists 8,000 Btu/h, CEER 15, 115 V, variable-speed compressor, and 400 kWh/year. Rated input is 8,000 ÷ 15 = 533.3 W, which matches 400 kWh at 750 hours. Startup watts are not published.