Sump Pump (1 HP / 115 V) Energy Calculator (Cost and kWh Usage)

Sump pumps may not be the most glamorous household item, but they are essential in preventing water damage in many homes. If you live in an area that is prone to flooding or heavy rain, having a sump pump can be a real game-changer. However, it’s important to understand the energy consumption and cost of running a sump pump to make the most informed decisions for your home.


How To Use This Calculator

Using this energy calculator is a simple and will help you determine the costs of running your appliance. Click on ‘Calculate’ to use the predefined values, or enter your daily usage in hours, appliance watts, and your current energy costs in dollars. The calculator will provide you with the daily, monthly, and yearly results. It’s important to ensure the accuracy of the information entered to get the most accurate results.

Hours Used Per Day

Enter the number of hours you estimate the appliance will be on throughout the day. To use fractions of an hour please use a decimal point in the form.

For example: 1 hour and 30 mintes would be 1.5, and 3 hours and 15 minutes would be 3.25

Power Used in Watts

The calculator already includes a default average wattage. If your appliance uses a different wattage then enter it in the calculator.

Your Energy Rate in kWh

The calculator includes an average energy rate (price in $/kWh) to use for the calculation. This may not be the exact price that you’re currently paying for electricity. If you know your energy rate please enter your price per kilowatt-hour.

Energy Consumption

The energy consumption of a sump pump varies depending on the horsepower and voltage of the motor. A 1 HP / 115 V sump pump uses 1440 watts per hour. This means that if it runs continuously for 24 hours, it will use 34.56 kWh. However, the pump is only used intermittently when water needs to be removed from the sump pit.

The amount of energy used by a sump pump can be difficult to estimate because it depends on how often it runs. If you’re interested in tracking the energy usage and cost of your sump pump, you can use a device called an energy monitor. This small device plugs into the wall and measures the energy consumption of a specific appliance over time.

Importance and Relevance

Sump pumps are crucial in preventing water damage in many homes. Without them, a severe storm or heavy rain could cause significant damage to your basement or crawl space. This type of damage can be costly to repair, and it can also lead to mold growth, which can be harmful to your health. By installing a sump pump and understanding its energy consumption and cost, you can protect your home and save money in the long run.

Cost in Dollars of Energy Usage

To calculate the cost of running your sump pump, you’ll need to know the current cost of electricity in your area. The default cost used in this article is $0.12/kWh. To calculate the cost of running your sump pump for a specific amount of time, you can use the following formula:

Cost = (watts × hours used ÷ 1000) × cost per kWh

Using the default values of a 1 HP / 115 V sump pump, the cost of running it for one day is:

Cost = (1440 watts × 24 hours ÷ 1000) × $0.12/kWh = $4.15

The monthly cost would be $124.42, and the yearly cost would be $1513.73. Keep in mind that these calculations are based on the default energy price and may vary depending on your location.

Money Saving Tips

There are a few ways to save money on the energy consumption of your sump pump. Here are some tips:

  • Install a high-efficiency sump pump: A high-efficiency sump pump uses less energy to pump water out of your home.
  • Use a battery backup: If the power goes out and your sump pump can’t run, you could be at risk of water damage. A battery backup can keep your sump pump running even when the electricity is out.
  • Install a sump pump cover: A sump pump cover can prevent debris from entering the sump pit and clogging the pump, which can cause it to work harder and use more energy.
  • Regular maintenance: Keep your sump pump clean and well-maintained to ensure it’s working efficiently. A clogged or dirty pump will use more energy to pump water out of your home.

By following these tips, you can reduce the energy consumption of your sump pump and save money on your electricity bill.


Understanding the energy consumption and cost of running a sump pump is key to preventing water damage in your home and saving money on your electricity bill. By installing a high-efficiency sump pump, using a battery backup, installing a sump pump cover, and performing regular maintenance, you can reduce your energy consumption and protect your home from water damage.

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