How much does a pool pump cost to run? The real electricity numbers

A standard single-speed pool pump draws 1,500 to 2,500 watts while running. That puts it in the same tier as a clothes dryer or space heater. The difference is runtime: a dryer runs 45 minutes per load. A pool pump runs 6 to 12 hours a day, every day, for five to seven months of pool season. At 8 hours daily on a 2,000-watt pump, that is 16 kWh per day or roughly 480 kWh per month. At the national average of 18.05¢/kWh, that comes to about $87 a month in electricity for the pump alone.

In many Sun Belt households, the pool pump is the second-largest electricity consumer after HVAC. It often accounts for 15 to 25% of total summer electricity use according to DOE estimates. Unlike the AC, which cycles on and off with a thermostat, a single-speed pump draws full power from the moment it turns on until it shuts off. There is no partial load. It is either pulling 2,000 watts or zero.

The type of pump determines the bill more than anything except the state rate. A single-speed pump runs at one fixed speed, typically 3,450 RPM, drawing 1,500 to 2,500 watts. It has no low gear. Full power or off. At 8 hours a day and 18.05¢/kWh, a 1,500-watt model costs about $65 a month. A 2,500-watt model costs about $109.

A dual-speed pump can switch between high speed (3,450 RPM) and low speed (1,725 RPM). Low speed draws roughly half the watts. Running 2 hours on high for vacuuming and 6 hours on low for circulation drops consumption to roughly 8 kWh per day, or about $44 a month at the national average.

A variable-speed pump adjusts RPM continuously, usually between 600 and 3,450 RPM. At low circulation speeds, it draws 200 to 500 watts. The physics matter here: pump energy consumption follows the affinity law, which means halving the speed cuts energy use by roughly eight times. A variable-speed pump running 10 hours a day at 1,200 RPM uses about 3 to 5 kWh per day, or $15 to $27 per month at the national average. ENERGY STAR certifies variable-speed models and estimates they save $300 to $750 per year over single-speed pumps.

The same 2,000-watt single-speed pump running 8 hours daily produces 480 kWh per month regardless of where the pool sits. The bill on that 480 kWh depends entirely on the state rate. In Florida at 15.05¢/kWh, it costs about $72 a month. In Texas at 14.8¢/kWh, about $71. In Arizona at 14.4¢/kWh, about $69.

Now move to higher-rate states. In Connecticut at 28.7¢/kWh, the same pump costs about $138 a month. In California at 33.75¢/kWh, about $162. In Hawaii at 39.89¢/kWh, about $191. A pool owner in Connecticut pays more than double what a pool owner in Florida pays for identical equipment and identical runtime. The full 2026 state rate breakdown shows where your rate falls.

The standard recommendation is to turn over the pool volume once per day for adequate filtration. A 15,000-gallon residential pool with a pump rated at 40 gallons per minute needs about 6.25 hours to turn over once. Many single-speed pumps are set to run 10 to 12 hours as a safety margin, but 6 to 8 hours is sufficient for most residential pools with properly sized filtration.

Cutting runtime from 10 hours to 7 hours saves 30% on the pump's electricity cost. On a 2,000-watt single-speed pump at the national average rate, that is roughly $26 a month saved with no equipment change. A pool cover reduces debris load and can justify even shorter pump cycles.

Variable-speed pumps change this calculation because running longer at low speed is cheaper than running shorter at high speed. A variable-speed pump at 1,000 RPM for 12 hours uses less energy than the same pump at 3,450 RPM for 4 hours. The cheapest strategy is low speed for longer, not high speed for shorter.

Pool pumps are the ideal load for time-of-use rate plans because the pump does not care when it runs. Water does not spoil faster on a Tuesday afternoon than at 2 AM. Shifting the pump schedule to off-peak hours, typically overnight or early morning, cuts the per-kWh cost 30 to 50% on most TOU plans.

On a California TOU plan where off-peak is 10¢/kWh and peak is 40¢/kWh, running a 480 kWh pump load entirely off-peak costs $48 a month instead of $192 at peak. That is $144 a month in savings from changing nothing except the timer. The TOU rate guide covers how to evaluate whether your utility's plan makes sense for your usage pattern.

A variable-speed pool pump costs $1,200 to $2,000 installed, compared to $400 to $800 for a single-speed replacement. The price premium is $600 to $1,200. At ENERGY STAR's estimated savings of $300 to $750 per year, the payback period is 1 to 3 years depending on your state rate and daily runtime.

In high-rate states, the payback is faster. A California pool owner switching from a 2,000-watt single-speed pump to a variable-speed model saves roughly $100 a month during pool season, which puts the payback at one season. In lower-rate states like Florida, the savings are smaller but the payback still comes within two to three seasons for most installations. The pump lasts 8 to 12 years, so the remaining life after payback is pure savings.

Several states and utilities offer rebates on ENERGY STAR variable-speed pool pumps. Florida Power & Light, Arizona Public Service, and various California IOUs have offered $100 to $200 rebates in recent years. Check with your utility before purchasing.

Pool pumps do not need to run the same hours year-round. In the offseason or shoulder months when the pool sees less use, reducing runtime by 30 to 50% is safe for most residential pools. A pool that needs 8 hours of circulation in July can often run 4 to 5 hours in September or October with no water quality issues.

Winterized pools in northern climates shut the pump off entirely for 4 to 5 months. A pool owner in Illinois or Ohio who runs the pump May through September pays for 5 months. A pool owner in Florida or Arizona who runs year-round pays for 12. Annual cost depends as much on season length as on rate and pump type.

The pump is the dominant electricity load, but it is not the only one. A pool heater, whether gas, heat pump, or electric resistance, adds $50 to $400 a month depending on type and target temperature. An automatic pool cleaner (booster pump style) adds 100 to 200 watts for 2 to 3 hours daily, roughly $3 to $8 per month. Pool lighting adds a few dollars if left on nightly.

A salt chlorine generator adds a small load (about 50 to 200 watts while running) but operates through the pump's schedule and adds $2 to $5 a month. None of these come close to the pump motor itself. If the pool is spiking the electric bill, the pump is the first place to look. If your overall bill is higher than expected and you are not sure the pool is the cause, the high-bill diagnostic walkthrough can help isolate which appliance is driving it.

These figures use national-average wattages and rates. Your pump's nameplate wattage, your daily runtime, and your state rate produce a different set of numbers. Plug in your pump and your state below to see what it costs at your address.

For the wattage specs on specific pump types, the single-speed pool pump and variable-speed pool pump appliance pages break down the draw by model. For the full ranking of which appliances cost the most to operate, the most expensive appliances list puts the pool pump in context against every other major household load.