Running cost comes down to wattage, hours and your rate. In Tennessee the rate is 14.47 cents per kWh, which is 21.5 percent below the national average. Here is what that means for a pool pump.
A pool pump drawing 1,500 W costs $0.22 per hour in Tennessee. Run 8 hours a day that is $1.74 daily, $52.09 a month and $634 a year, which is $174 less than the same appliance at the US average rate.
Cost by hours used per day in Tennessee
| Hours/day | Energy | Per day | Per month |
|---|---|---|---|
| 1 h | 1.50 kWh | $0.22 | $6.51 |
| 2 h | 3.00 kWh | $0.43 | $13.02 |
| 4 h | 6.00 kWh | $0.87 | $26.05 |
| 6 h | 9.00 kWh | $1.30 | $39.07 |
| 8 h | 12.00 kWh | $1.74 | $52.09 |
| 12 h | 18.00 kWh | $2.60 | $78.14 |
| 24 h | 36.00 kWh | $5.21 | $156 |
Cost by wattage at 14.47 cents
| Rated power | Per hour | Per day | Per month |
|---|---|---|---|
| 750 W | $0.11 | $0.87 | $26.05 |
| 1,000 W | $0.14 | $1.16 | $34.73 |
| 1,500 W | $0.22 | $1.74 | $52.09 |
| 2,000 W | $0.29 | $2.32 | $69.46 |
| 2,500 W | $0.36 | $2.89 | $86.82 |
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 Tennessee
Pool season in Tennessee 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 Tennessee pays what it does
Tennessee is a regulated market, so your utility is the only supplier and the rate is set through the state commission rather than by competition. Pricing tends to be steadier than in deregulated states, and there is no switching decision available. The levers are all on your side of the meter.
At 14.47 cents, Tennessee ranks 12 of 51 from cheapest to most expensive. The Southeast regional average is 16.16 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 |
| Tennessee | 14.47¢ | $52.09 | $634 |
| California | 33.25¢ | $120 | $1,456 |
| Hawaii | 52.00¢ | $187 | $2,278 |
Lowering the number in Tennessee
- 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 Tennessee
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 14.47 cents rather than the national 18.44 cents, the same array is worth less 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 Tennessee?About $0.22 per hour and $52.09 a month at 8 hours a day, using the Tennessee average rate of 14.47 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 Tennessee?Tennessee electricity runs 21.5 percent below the national average, so this appliance costs $174 less 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. Since Tennessee is regulated, shopping for a supplier is not an option, so usage is the lever.[/hed_faq]