What size power station do I need for Well pump?
Well pump
Default appliance profile before model-specific measurements.
Using the supplied baseline, the well pump is estimated to use about 500 Wh per day. A conservative one-day target is approximately 726 Wh of nominal battery capacity, with an inverter rated to handle at least 2,500 W of startup demand.
This estimate assumes 1,000 W running power, 2 hours of scheduled use per day, and a 25% duty cycle. Actual consumption is uncertain by approximately ±40%; model-specific runtime and complete household backup requirements cannot be determined from the supplied evidence alone.
- Battery: Look for at least about 726 Wh of nominal capacity for this one-day estimate.
- Inverter: Confirm that startup capability covers the pump’s estimated 2,500 W surge, not only its 1,000 W running draw.
- Verify before purchase: A plug-in power meter or manufacturer energy label is preferable when available, and other simultaneous household loads require separate sizing.
Using the default load profile, well pump consumes about 500 Wh/day. A conservative one-day battery target is about 726 Wh nominal capacity, while the inverter should cover at least 2500 W of startup demand.
Assumptions behind the calculation
- Running draw: 1000 W
- Startup/surge: 2500 W
- Default use: 2 h/day
- Duty cycle: 25%
- Usage uncertainty: ±40% before model-specific measurements
Actual energy use varies by appliance model, ambient conditions, settings and load. A plug-in power meter or manufacturer energy label is preferable when available.
Runtime by battery size
| Station capacity | Continuous-draw runtime | Default usage profile |
|---|---|---|
| 300 Wh | 0.2 h at continuous draw | 0.5 default-profile days |
| 500 Wh | 0.4 h at continuous draw | 0.8 default-profile days |
| 1000 Wh | 0.8 h at continuous draw | 1.6 default-profile days |
| 1500 Wh | 1.2 h at continuous draw | 2.4 default-profile days |
| 2000 Wh | 1.6 h at continuous draw | 3.2 default-profile days |
| 3000 Wh | 2.4 h at continuous draw | 4.8 default-profile days |
Use your actual household loads
The calculator combines this appliance with refrigerators, networking, pumps, medical equipment and other essentials so simultaneous wattage and motor startup are not ignored.