How Much Does a Sump Pump Cost to Run?
A sump pump costs approximately $31/year to run at $0.16/kWh. That is $2.56/month or $0.128/hour.
💰 Sump Pump Running Cost Calculator
Based on 800W rated power. Actual varies by model and usage.
Sump Pump Cost at Different Rates
| Rate | Monthly | Annual |
|---|---|---|
| $0.08 | $1.25 | $15 |
| $0.10 | $1.58 | $19 |
| $0.12 | $1.92 | $23 |
| $0.16 | $2.58 | $31 |
| $0.20 | $3.17 | $38 |
| $0.25 | $4.00 | $48 |
| $0.30 | $4.83 | $58 |
| $0.35 | $5.58 | $67 |
Electricity cost to run a Sump Pump
A typical Sump Pump draws 800 watts when running and operates roughly 2 hours per day on average. That works out to 1.60 kWh per day, 16 kWh per month, and approximately 192 kWh per year.
At the US-average residential rate of 16.4 cents per kWh (EIA April 2026), the Sump Pump costs roughly $31 per year to operate. In cheap-power states like Idaho or Washington at 11 cents, it is closer to $23. In expensive states like California or Massachusetts at 30 cents, it climbs to $48. In Hawaii at 41 cents per kWh, the annual cost is approximately $79.
Annual cost by state rate
| Rate scenario | Rate (c/kWh) | Annual kWh | Annual cost |
|---|---|---|---|
| Idaho, Washington (cheapest) | 11.0 | 192 | $21 |
| Texas, Florida | 14.0 | 192 | $27 |
| US national average | 16.4 | 192 | $31 |
| New York, Connecticut | 25.0 | 192 | $48 |
| California, Massachusetts | 30.0 | 192 | $58 |
| Hawaii (most expensive) | 41.2 | 192 | $79 |
Frequently asked questions
How much electricity does a Sump Pump use?
A typical Sump Pump uses about 1.60 kWh per day running 2 hours at 800W. That works out to roughly 16 kWh per month and 192 kWh per year. Your actual use will vary with how often you run it.
How much does it cost to run a Sump Pump per month?
At US-average electricity rates (16.4 cents/kWh), running the Sump Pump costs about $2.62 per month. In low-rate states it can be as little as $1.76; in high-rate states like California, expect closer to $4.80 per month.
What is the annual cost of running a Sump Pump?
Annual operating cost at US-average rates: approximately $31 per year. The range across US states is roughly $19 (cheapest) to $79 (Hawaii).
How can I reduce the cost of my Sump Pump?
Check whether your utility offers a time-of-use plan that aligns with this appliance use pattern.
What watt rating should I expect for a Sump Pump?
Typical running wattage for a Sump Pump is around 800 watts, with brief startup peaks of up to 1,600 watts. Specific models vary; check the nameplate label on your unit for exact figures. Common variation is plus-or-minus 20 percent of the typical value.
Sump Pump Energy Usage Explained
A sump pump consumes 800W. At 2 hours/day for 120 days/year, that is 192 kWh annually, about 1.8% of average US household usage (10,500 kWh).
How to Calculate Running Cost
Cost = (Watts ÷ 1000) × Hours × Rate
For your sump pump: (800W ÷ 1000) × 2 hrs × $0.16/kWh = $0.26/day.
Tips to Reduce Costs
Use time-of-use electricity plans for off-peak rates ($0.05–$0.10/kWh overnight). Upgrade to Energy Star certified models. Use smart plugs or timers. Check rates in your state with our Electricity Cost Calculator.
Disclaimer: Estimates based on rated wattage. Actual consumption varies by model, age, and usage patterns.