This calculator uses the average watt rating (100 Watts) for a Pool Pump. You can input your Pool Pump’s details to calculate the exact usage and cost of your device.
Enter how many hours per day you estimate you run your Pool Pump. If it is less than one hour use a decimal. For example, 30 minutes would be .5 and 15 minutes would be .25.
Input the wattage of your Pool Pump. If you are unsure enter the average wattage for a Pool Pump: 2250.
Enter the price per kilowatt-hour (kWh) you pay for electricity. If you are unsure you can use the average rate per kWh in the US (10 cents) or find the kWh rate in your area here.
We reviewed the most energy efficient pool pumps. It's surprising what a difference the right variable speed pool pump can make on your electric bill. You can find our full in-depth pool pump reviews here. Otherwise here are some of favorites.
Regarding (wasteful) power consumption, swimming pool pumps are among the worst offenders in the typical home. The conventional swimming pool water filtration method, which has been used for at least 50 years, is dreadfully ineffective. Most homeowners would never put up with a pool pump's degree of inefficiency in any other item in the house.
This acceptance of a highly inefficient electrical device is merely the result of a lack of information regarding power consumption, flow rates, and filtration requirements. Sometimes, a pool pump can be responsible for half of the home's monthly electricity use.
The Department of Energy has determined that a national shift is necessary to eliminate the wasted electricity that has historically plagued the pool industry. That stunning statistic serves as an excellent example of why.
While the news of new regulations requiring pool owners to purchase more expensive and efficient technology hasn't been met with universal support, the truth is that pool owners should be pleased.
The energy consumption or costing of pool pumps depends on the size and energy efficiency of the pump. Larger horsepower pumps consume more kilowatt hours (which is what you truly pay for) and amperage (kWh). Compared to conventional pump motors, Energy Efficient (EE) motors consume fewer amps.
By checking the pump motor label and performing some mathematics, one can reasonably determine this, or at least get an approximation.
Volts and Amps are listed on the pump label (yours may look slightly different).
In this instance, the voltage is displayed as 115/230V, indicating that the motor is "reversible" and may run on 115V or 230V. The motor draws 15A at 115V and 7.5A at 230V, respectively, according to the Amps indicated as 15.0/7.5.
It's typical to see only 230V and a single number to denote the number of Amps utilized at maximum load given for larger motors above two horsepower.
Note that the Maximum Amp Draw is displayed on the pump label or "name plate." After starting up, many pool pumps will draw 1-2 fewer amps than shown on the nameplate.
If it is too big for the system and pipes or a low-voltage issue, they may also draw more amps than specified.
The pool pump must overcome vacuum and pressure restrictions and tries to balance or straddle these two forces at a position between the pump curve and system curve.
To put it more simply, the amount of work the motor needs to accomplish is directly proportional to the amount of resistance the Pump must overcome. Larger pumps typically use 2-inch Plumbing since it has less resistance than 1.5-inch piping. Larger pool filters run less pressure and are less constrictive than smaller filters.
You must take caution here because if you use too little energy, you'll spend considerably more on chemicals and filtering to restore the water to its original quality.
However, you can test how long your pool needs to remain clear and clean during any particular season. When it's hot, you'll need more filtering—possibly double as much as you do in the sweltering summer months—than in the milder shoulder seasons. The precise amount required for any pool depends on how well-functioning the pump and filter system is.
Pumps with variable speeds operate at lower rates to save energy.
Halfing the impeller speed (RPM) cuts the necessary amperage by eight times.
By paying continual attention to the pool's chemistry, water issues can be stopped before they become severe enough to need running the Pump for an extended period to correct. Good water balance and sanitation standards decrease the demand for extra filtration.