If your RV setup depends on a property well pump, you need to plan for high startup watts even if daily run time is short.
For full system planning, use the WattSizing Calculator.
Quick Answer
Typical well-pump running watts are 700 to 2,000, with startup often 2x to 4x. In RV contexts, daily energy may be moderate but surge demand is still substantial.
RV Context
Many RV users only encounter well pumps at rural sites. The pump may run infrequently, but backup sources must still support startup without voltage sag.
Typical Ranges
| Pump Size | Running Watts | Starting Watts | Typical RV-Use kWh/day |
|---|---|---|---|
| 1/2 HP | 700 - 1,100 W | 1,400 - 2,500 W | 0.8 - 2.4 |
| 3/4 HP | 900 - 1,500 W | 1,800 - 3,200 W | 1.1 - 3.0 |
| 1 HP | 1,200 - 2,000 W | 2,400 - 4,200 W | 1.5 - 3.8 |
Practical Example
A 3/4 HP pump at 1,000 W for 1.2 hours/day uses 1.2 kWh/day, but startup still needs much higher instant power.
FAQs
Is this the same as an RV onboard water pump?
No. RV onboard pumps are usually much lower-power DC loads.
Can a portable inverter generator handle it?
Sometimes, if surge rating is sufficient.
Should loads be staggered while pumping?
Yes, avoid running other heavy appliances at the same moment.
CTA
Ready to size your setup accurately? Use the WattSizing Calculator to estimate panel, battery, and inverter requirements from your real appliance loads.
