How battery energy storage works

Battery storage systems store electricity, such as from a solar system or the electricity grid, for use at another time.

Battery systems can vary in size. For example:

  • small systems (1 kilowatt hour (kWh) to 12kWh) for households or small to medium businesses
  • large systems (up to and over 200kWh) for business
  • grid-scale systems (up to and over 1 megawatt hour) operated by electricity generators and network providers.

Using battery storage with solar

Battery storage used with solar power system can help reduce your electricity bills by storing the solar energy you generate during the day so that you can use it when you need it.

Small battery systems can be installed with a new solar system or connected to an existing system. Note that some modification or replacement of parts may be necessary.

Watch the video below to see how batteries work with solar power. A video transcript is available on YouTube, under the 'More actions' menu.


Find out more

The Clean Energy Council provides extensive information about what battery energy storage is and how it works.