How much does a well pump cost to run?
A well pump bills you per gallon of household water: every shower, laundry load, and sprinkler zone triggers motor runtime. Depth of the well and pressure-tank health set the efficiency.
Content reviewed 2026-07-15 · Rates published 2026-09-24 · methodology appliance-energy-1.0.0 · data vintage 2026-07-ytd
Using the family with a yard assumptions below, electricity costs about $0.16 per day of use and $4.82 for 30 days of use at the Texas average rate. Adjust the calculator for your equipment and schedule.
Example costs using the Texas state-average rate
These are generated examples for a consistent location. Enter your own ZIP and usage below for a more relevant state-average estimate.
| Scenario | Assumption | kWh/month | Cost/day of use | Monthly range | Cost at 365 days/year |
|---|---|---|---|---|---|
| Two-person household | About an hour of pumping a day 1000 W × 1 h/day × 0.6 duty × 30 days × 1 unit(s) | 18.00 | $0.10 | $1.91–$4.27 | $35.17 |
| Family with a yard | Two hours of pumping including light irrigation 1000 W × 2 h/day × 0.5 duty × 30 days × 1 unit(s) | 30.00 | $0.16 | $3.19–$7.12 | $58.62 |
| Deep well, heavy summer use | Four hours daily from a 1.5-HP deep-well pump 1500 W × 4 h/day × 0.55 duty × 30 days × 1 unit(s) | 99.00 | $0.53 | $10.53–$23.51 | $193.44 |
Wattage, runtime and duty cycle below are illustrative assumptions, not measurements of a particular model. Annual figures assume use on all 365 days; monthly figures use each scenario's stated number of days.
Source: U.S. Energy Information Administration, Electric Power Monthly Table 5.6.B. Data vintage 2026-07-ytd. State-average pricing is not your exact utility tariff.
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Every gallon has a wattage price
The pump lifts water from depth and pressurizes the tank, so consumption tracks household gallons plus irrigation. Deeper wells demand bigger motors working longer per gallon, which the deep-well scenario reflects.
The pressure tank is the efficiency organ
A healthy tank lets the pump fill a reserve and rest; a waterlogged tank forces a start for every faucet touch. Frequent short starts draw surge current and wear the motor — the same pathology sump pits suffer from tight float switches.
Irrigation flips the arithmetic
Sprinkler systems can pass more water in a summer month than the household itself, doubling or tripling pump hours. Constant-pressure variable-speed pumps smooth this load but follow different consumption curves than the fixed-speed model here.
Frequently asked questions
Why did my well pump cost spike in summer?
How do I know if my pump is short cycling?
Do deeper wells always cost more to pump from?
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