Solar and Battery Calculator

Discover the Solar and Battery Calculator, a tool designed to assist you in determining the ideal size for your solar system along with battery storage for your home. Utilise our pricing calculator to estimate the cost of your system accurately.

Why should you get a solar battery?

In Australia, where abundant sunshine is practically a way of life, harnessing solar power is a no-brainer. But while solar panels are a great start, pairing them with a solar battery system takes your energy independence to the next level. Here’s why you should seriously consider investing in a solar battery:

1. Energy Independence

With a solar battery, you’re not at the mercy of fluctuating energy prices or grid outages. You can store excess solar energy generated during the day and use it when the sun goes down or during peak demand periods. This means greater control over your energy usage and significant savings on your electricity bills.

2. Environmental Impact

Reducing your reliance on traditional energy sources like coal and gas not only slashes your carbon footprint but also contributes to a cleaner, greener future for Australia. By storing your own solar energy, you’re directly reducing the demand for fossil fuels and helping combat climate change.

3. Increased Reliability

Australia’s vast landscape and extreme weather conditions can sometimes lead to power outages. A solar battery provides a reliable backup power source, ensuring that essential appliances and devices remain operational even during blackouts. This reliability can be particularly crucial for those living in remote areas or regions prone to severe weather events.

4. Government Incentives

The Australian government offers various incentives, rebates, and feed-in tariffs to encourage the adoption of renewable energy technologies, including solar batteries. By investing in a solar battery system, you may be eligible for financial incentives that can further offset the initial cost and accelerate your return on investment.

5. Future-Proofing Your Home

As energy prices continue to rise and environmental concerns mount, investing in solar and storage technologies is a smart long-term strategy. By integrating a solar battery into your home energy system now, you’re future-proofing your property against escalating energy costs and positioning yourself to thrive in a sustainable energy landscape.

How to use this calculator

Using the System + Battery Size Calculator is quick and straightforward. Follow these steps to determine the optimal solar system and battery size for your home:


  • Gather your electricity bill: Locate your latest electricity bill to find your average daily consumption in kilowatt-hours (kWh). This information is essential for accurately sizing your solar system and battery.
  • Enter your data: In the provided fields, enter your daily average consumption (kWh) and your postcode. This allows the calculator to customize its recommendations based on your energy usage and location.
  • Review suggestions: Once you’ve entered your data, the calculator will automatically generate suggestions for the ideal solar system size, expected average daily solar production, and suggested minimum battery storage size for your home.
  • Get FREE quotes: After receiving your recommendations, you can choose to request free quotes for solar and battery installation from reputable providers. This allows you to explore your options and find the best solution for your needs and budget.


The figures and values displayed are to be used as a guide ONLY. Energy Matters makes every effort to provide up-to-date data, though we take no responsibility for how you use the figures and values displayed. Quotes you receive from solar retailers may not match the values and figures displayed by the solar battery calculator or solar system calculator. All quotes provided by solar retailers utilise specific information and data that is unique to your home and circumstances. No two solar installations are the same which is why all figures and values are averages.

All figures are inclusive of STC price deductions but DO NOT include any other rebates, discounts or incentives offered by federal, state, or local governments. Displayed prices do not include any markups associated with financing. For accurate figures and prices for solar, battery storage, and EV charger products and installation, a quote must be obtained from a solar retailer.

System + Battery Size Calculator

Please refer to your latest electricity bill to locate your average daily electricity consumption.

Solar Calculator

Solar Price Estimator

Using the data from the System + Battery Size Calculator in Australia, find out how much your system is expected to cost.

Solar Calculator Price

*Does not include any rebates, discounts, or incentives (except for STCs).