Running cost comes down to wattage, hours and your rate. In Maryland the rate is 21.77 cents per kWh, which is 18.1 percent above the national average. Here is what that means for a pool pump.
A pool pump drawing 1,500 W costs $0.33 per hour in Maryland. Run 8 hours a day that is $2.61 daily, $78.37 a month and $954 a year, which is $146 more than the same appliance at the US average rate.
Cost by hours used per day in Maryland
| Hours/day | Energy | Per day | Per month |
|---|---|---|---|
| 1 h | 1.50 kWh | $0.33 | $9.80 |
| 2 h | 3.00 kWh | $0.65 | $19.59 |
| 4 h | 6.00 kWh | $1.31 | $39.19 |
| 6 h | 9.00 kWh | $1.96 | $58.78 |
| 8 h | 12.00 kWh | $2.61 | $78.37 |
| 12 h | 18.00 kWh | $3.92 | $118 |
| 24 h | 36.00 kWh | $7.84 | $235 |
Cost by wattage at 21.77 cents
| Rated power | Per hour | Per day | Per month |
|---|---|---|---|
| 750 W | $0.16 | $1.31 | $39.19 |
| 1,000 W | $0.22 | $1.74 | $52.25 |
| 1,500 W | $0.33 | $2.61 | $78.37 |
| 2,000 W | $0.44 | $3.48 | $104 |
| 2,500 W | $0.54 | $4.35 | $131 |
Find the row matching the nameplate on your own unit. Within a single appliance category the spread is often wider than the difference between categories, so the label is worth reading.
Pool season in Maryland
Pool season in Maryland is limited, typically four to six months, so apply the monthly figure across that window rather than twelve months. Winterising properly matters more than pump efficiency in a climate like this.
Why Maryland pays what it does
Maryland has a competitive retail electricity market, so the rate used here blends households on the utility default with households on shopped supply plans. If you have never switched supplier you are probably on the default, which is usually the more expensive side of that blend. Only the generation portion of your bill changes when you switch; delivery and outage response do not.
At 21.77 cents, Maryland ranks 37 of 51 from cheapest to most expensive. The Northeast regional average is 25.91 cents. Roughly half of any residential bill is transmission and distribution rather than generation, which is why rates keep climbing even when fuel prices fall.
How this compares across the country
The same pool pump on the same schedule, in the cheapest and dearest states:
| State | Rate | Per month | Per year |
|---|---|---|---|
| Idaho | 12.35¢ | $44.46 | $541 |
| Utah | 12.96¢ | $46.66 | $568 |
| Maryland | 21.77¢ | $78.37 | $954 |
| California | 33.25¢ | $120 | $1,456 |
| Hawaii | 52.00¢ | $187 | $2,278 |
Lowering the number in Maryland
- Work out your actual turnover requirement. Many pumps are scheduled for eight or twelve hours when four would filter the volume.
- Reduce runtime in steps. Cut an hour, watch the water a week, cut another.
- Switch to variable speed. Power rises with the cube of flow, so slower for longer moves the same water for roughly a quarter of the energy.
- Keep skimmer and pump baskets clear. A restricted intake makes the motor fight pressure it should not see.
- Run off-peak if you are on a time-of-use plan. Nobody cares when a pool pump runs.
Offsetting it with solar in Maryland
This load uses about 12.00 kWh a day. Covering that would take roughly 9 standard 400 W panels at typical sun hours, an array of about 3.60 kW. Because it offsets electricity worth 21.77 cents rather than the national 18.44 cents, the same array is worth more here than the national payback figures suggest.
Pool pumps are the ideal solar load: large, daytime, and completely flexible about timing. Variable-speed pumps make the match better still. Full sizing, including battery and inverter requirements, is on the solar sizing page for this appliance.
Questions people actually ask
[hed_faq]How much does it cost to run a pool pump in Maryland?About $0.33 per hour and $78.37 a month at 8 hours a day, using the Maryland average rate of 21.77 cents per kWh.
How many watts does a pool pump use?Around 1,500 W while running, with a range of roughly 750 to 2,500 W depending on model and setting.
Is that expensive for Maryland?Maryland electricity runs 18.1 percent above the national average, so this appliance costs $146 more per year here than it would at the US average rate.
Can I lower this without replacing the appliance?Usually yes. Run time is the variable you control, and the hours table above shows exactly what each hour costs. In Maryland you can also shop for a cheaper supply rate, which lowers every figure on this page proportionally.[/hed_faq]