I am pleased to be releasing the NSW Home Solar Battery Guide as an important part of our NSW Renewable Energy Action Plan.

Rooftop solar panels are more affordable than ever and the people of NSW are making the most of this clean energy opportunity. More than 350,000 of our households are already harnessing the power of the sun.

Battery storage gives people the power to bank their solar supply and be able to use it any time—day or night. This means that those 350,000 households are now considering whether storage works for them.

Advances in the efficiency and affordability of batteries are speeding up. The Australian Energy Market Operator now anticipates more than 1,000 megawatts of batteries will be installed in NSW by 2035.

This guide seeks to help consumers answer two questions:

  • Would battery storage save me money?
  • How do I choose the right battery system?

The home solar battery market is evolving quickly. This guide provides general advice and every care has been taken to provide accurate and up to date information. You should seek expert advice to decide what option is right for you.

NSW has an aspirational objective of net-zero emissions by 2050 and individual households and consumers will play a critical role in meeting this objective.

The government is working to accelerate the transition to emerging clean energy sources. It isn’t enough just to provide options, we want to ensure our people are empowered to access clean energy in the best way possible.

The Hon Don Harwin MLC
Minister for Resources, Minister for Energy and Utilities, Minister for the Arts

Who is this guide for?

This NSW Home Solar Battery Guide helps households make informed decisions when considering buying and owning a battery system. We will look at subjects including:

  • installing new rooftop solar together with a battery
  • adding a battery to an existing rooftop solar system
  • installing a battery without solar
  • using a battery to disconnect from the grid.
  • This guide is designed for home owners, and is not intended for business owners or tenants. The guide does not cover going offgrid in detail because in most cases this is not a financially viable option.

The guide outlines things you may wish to consider when making financial decisions. However, the guide does not provide financial advice. The technical information and financial analysis in the guide are based on extensive modelling undertaken by the Alternative Technology Association (ATA), using current information as at May 2017.


The NSW Home Solar Battery Guide was developed by the Total Environment Centre, in collaboration with the Alternative Technology Association and Zumio, for the NSW Department of Planning and Environment, Energy, Water and Portfolio Strategy Division.

The Department appreciates the valuable input provided by industry and other stakeholders in the development of this guide.

NSW Planning and Environment logo Total Environment Centre logo Alternative Technology Association logo Zumio logo


While every reasonable effort has been made to ensure that this document is correct at the time of printing, the State of NSW, its agents and employees, disclaim any and all liability to any person in respect of anything or the consequences of anything done or omitted to be done in reliance or upon the whole or any part of this document.

The guide outlines things you may wish to consider when making financial decisions. However, the guide does not provide financial advice.

Copyright notice

In keeping with the NSW Government’s commitment to encourage the availability of information, you are welcome to reproduce the material that appears in ‘NSW Home Solar Battery Guide’ for personal, in-house or non-commercial use without formal permission or charge.

All other rights are reserved. If you wish to reproduce, alter, store or transmit material appearing in the ‘NSW Home Solar Battery Guide’ for any other purpose, a request for formal permission should be directed to ‘NSW Home Solar Battery Guide’, PO box 1148, Gosford NSW 2250.

This Guide was produced June 2017
© Crown Copyright State of NSW through NSW Department of Planning and Environment 2017
ISBN 978-0-646-97292-3