Appliance
How many solar panels to run a sump pump?
A sump pump uses about 1,116 Wh a day. At the U.S. average of 4.98 sun hours that takes about 299 W of panels and a 1.38 kWh battery for one day.
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| Value | |
|---|---|
| Model used | Zoeller Model 53 3/10 HP sump pump, 115 V |
| Daily energy | 1,116 Wh |
| Basis | 1115.5 W × 1 h/day (assumed use) |
| Panel watts (U.S. avg) | 299 W |
| Battery, 1 day | 1.38 kWh |
| Source | manufacturer / ENERGY STAR |
By state
| State | Panel watts |
|---|---|
| Arizona | 228 W |
| Colorado | 263 W |
| Wyoming | 278 W |
| Idaho | 285 W |
| Missouri | 296 W |
| South Dakota | 306 W |
| Montana | 313 W |
| New Jersey | 319 W |
| Maine | 327 W |
| Michigan | 333 W |
| Alaska | 469 W |
Questions
How many solar panels to run a sump pump?
A sump pump uses about 1,116 Wh a day. At the U.S. average of 4.98 sun hours that takes about 299 W of panels and a 1.38 kWh battery for one day.
Where does the daily energy come from?
1115.5 W × 1 h/day (assumed use). Zoeller lists the Model 53 at 3/10 HP, 115 V or 230 V, and 4.8–9.7 A. The 115 V automatic model in Zoeller's 50-series technical table is 9.7 A. Running watts used here are 9.7 × 115 = 1,115.5 W. Startup amps are not published. How often the float runs is site-specific, so no duty cycle is stored.