How Much Energy Does a Swimming Pool Use? A Comprehensive Guide

Swimming pools are synonymous with relaxation, fun, and the great Australian outdoor lifestyle. However, they can also be significant consumers of energy. Understanding the energy consumption of a swimming pool and implementing efficiency measures can lead to substantial savings. This guide explores the various aspects of energy consumption in swimming pools and offers practical solutions.

Energy Consumption of a Swimming Pool

The average swimming pool in Australia costs between $660 and $1,000 to run annually, consuming between 2,000 and 3,000 kilowatt-hours of electricity. This translates to about $23 each week. But what contributes to these costs?

1. Heating

Gas Heating: Effective but costly, gas heating can cost between $4 and $17 per hour to run.

Solar Heating: A more economical option, solar heating costs around $0.18 and $0.26 per hour but depends on sun exposure.

2. Pool Filter Pump

Running the typical pump adds 26 to 53 cents to your electricity bill per hour. These pumps are essential for filtering debris and maintaining water quality but can be energy-intensive.

3. Water Evaporation

Evaporation can account for up to 70% energy loss, affecting the heat of your pool and making your heater work harder. Factors affecting evaporation include surface area, air temperature, humidity, wind levels, and pool usage.

4. Chlorinators

Chlorinators, necessary for sanitizing the water, can often cost up to 7c an hour to run.

Ways to Run Your Pool Efficiently

Efficiency in running a swimming pool is not just about saving money; it’s also about environmental stewardship. Here’s how you can make your pool more energy-efficient:

1. Using a Pool Cover

  • Evaporation Reduction: Pool covers can reduce evaporation rates by 97%, resulting in energy savings of up to 50-70%. 
  • Heat Retention: By retaining heat, pool covers can reduce the need for additional heating, further saving energy.

2. Using a Solar Water Heater

  • Cost-Effective: Solar water heating can be up to 100 times less costly to operate than a gas water heater.
  • Environmental Benefits: Utilizing solar energy reduces reliance on fossil fuels, contributing to a greener environment.

3. Using Multispeed Pumps

  • Energy Savings: Multispeed pool pumps can save hundreds of dollars a year.
  • Pump Affinity Law: This law states that reducing the RPMs of your pump by 50% creates an energy saving of 75%, and the savings become more disproportionate as you lower the RPMs further.

4. Correct Pool Parts Maintenance

  • Regular Cleaning: Keeping the filter system clean helps the pump work efficiently.
  • Professional Maintenance: Pool maintenance specialists can assess the energy efficiency of your pool and extend the life of pool parts.
  • Additional Considerations
  • Size Matters: Consider the size of the pool for your household, as smaller pools are more economical.
  • Local Regulations: Complying with local laws regarding filtration and safety can affect energy consumption.
  • Seasonal Changes: Seasonal variations in temperature and weather conditions will impact energy consumption patterns.


Swimming pools are a wonderful addition to any home but require careful consideration of energy consumption and efficiency. From heating and filtration to evaporation and maintenance, various factors contribute to the energy costs of running a pool.

Investing in energy-efficient technologies like solar water heaters, multispeed pumps, and pool covers, along with regular maintenance, can lead to significant savings. Understanding these aspects ensures that pool owners can enjoy their pools without undue concern about energy costs or environmental impact.

By embracing these energy-saving measures, pool owners can contribute to a sustainable future while enjoying the pleasures of their swimming pool all year round.


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