Battery Calculator

Calculate savings when adding a battery to your existing solar panel system, including the federal battery rebate

Simply input your electricity tariff, the battery you are considering, and upload your smart meter data to get definitive battery savings and payback based on your real-life 12 month usage. This estimate includes the federal battery rebate and, where required, an allowance for a compatible hybrid inverter.

Please note: You must have at least 12 months (365 days) of both grid usage and solar export data.

How it works

By uploading your smart meter data we can see exactly how much spare solar you have throughout the year to charge a battery, and how much electricity you use after sundown.

We use this data to calculate exactly what your bill would have been for the previous 12 months if there was a battery charging from the solar during the day and powering your home at night.

Don't have solar yet, don't have at least 12 months of data, or can't access your smart meter data? Try our solar calculator.

Why do we need your postcode?

Your postcode lets us a) use sensible default electricity rates and b) determine your network's peak, off-peak and shoulder time periods.

Your postcode

Please enter a valid postcode

Your electricity rates

Choose 'Standard' or 'Time-Of-Use' tariff then edit rates to match what you currently pay (and earn) per kWh.

Your Electricity Plan

Discounts:
Select the discounts you have access to (guaranteed discouts are always included and can't be unticked)

Choose a battery

Choose the battery you fancy, or if undecided, select 'Generic 14kWh Battery'

Battery

$ Battery Cost (installed) Price should be including battery installation

How do I get an NEM12 File?

If you have solar, you have a smart meter. If you have a smart meter, you can usually download its data from a web portal. Click here to see how to get your smart meter data.

You'll get it as a .csv file. That's the file to upload here.

Please upload a NEM12 file How do I get a NEM12 CSV File

How To Use This Calculator

This calculator will only work if:
1. You already have a solar system and are considering adding a battery.
2. You have a smart meter and that smart meter is capable of producing interval-level data.
3. You are willing to download this data from your electricity network provider (DNSP).
4. You have at least 12 months (365 days) of both solar export and grid usage data.

If we've got past all of that, all you need to do is:
1. Enter your postcode
2. Choose your current electricity plan
3. Select the battery you are considering buying
4. Enter the cost of supply and installation of that battery (we'll guess in most cases).
5. Upload the NEM12 CSV file you downloaded from your DNSP.
6. Then calculate your savings.

Once that's done, you'll see an estimate of your next four bills and estimated payback time.

Big Fat Disclaimer

This calculator is intended to provide illustrative examples based on stated assumptions and your inputs.

Although we've tried hard to get all the calculations correct - there is a possibility that we've made a mistake somewhere - we are only human.

Be aware that - although the default settings reflect sensible values, you should change them to reflect your reality.

This calculator looks back in time - to your past 12 months usage - no one knows what retail electricity rates will be in the years ahead.

This calculator is not intended to be solely relied on for the purposes of buying a battery. Talk to a good, honest installer too.

Consider obtaining advice from an Australian Financial Services licensee before making any financial decision that involves mortgages, loans or solar financing.

Actual outcomes will depend on a range of factors outside the control of SolarQuotes.

Can't upload your file? Let us help!