Protecting Your Solar Investment: How Solar Batteries Can Mitigate the Effects of the Sun Tax


As solar power in Australian homes and businesses continues to grow, it’s essential to keep up to date with potential challenges clean energy entrepreneurs may face, one of which is the looming ‘Sun Tax‘ introduced by Ausgrid.

This new policy changes how solar energy is managed and monetised, particularly affecting those without solar batteries.

In this blog, we’ll explore how investing in solar batteries can protect your investment and mitigate the effects of the Sun Tax.


This policy aims to balance grid stability by encouraging energy use during the day and exports during high-demand evening periods.


Understanding the Sun Tax

Ausgrid’s new two-way tariff system penalises solar panel owners for exporting electricity to the grid during the day and rewards them for exports during peak evening hours. Specifically:

Penalty: 1.2¢ per kilowatt-hour for exports between 10 am and 3 pm.

Reward: 2.3¢ per kilowatt-hour for exports between 4 pm and 9 pm.

This policy aims to balance grid stability by encouraging energy use during the day and exports during high-demand evening periods.

However, for many homeowners, this means reducing the financial benefits of their solar systems unless they invest in solar batteries.

You can read more about this “Sun Tax” by visiting the Augrid Export Pricing Fact Sheet here.

How Solar Batteries Can Help Protect Your Solar Investment

Avoiding Daytime Penalties

Solar batteries store excess energy produced during the day, preventing it from being exported to the grid during penalty periods. Using this stored energy during the day can avoid the 1.2¢ per kilowatt-hour penalty, maximising your solar investment’s efficiency and financial returns.

Maximising Evening Rewards

Stored solar energy can be exported to the grid during peak hours (4 pm to 9 pm) when Ausgrid offers higher feed-in tariffs. By strategically using and exporting your stored energy, you can take advantage of the 2.3¢ per kilowatt-hour reward, enhancing your financial returns.

Increasing Energy Independence

A solar battery system reduces your reliance on the grid, making you less vulnerable to policy changes and fluctuating energy prices. By storing and using your solar energy, you become more self-sufficient, ensuring you fully benefit from your solar investment.

Enhancing Grid Stability

Solar batteries contribute to a more stable and resilient grid by balancing supply and demand. By storing excess energy during low-demand periods and releasing it during high-demand times, batteries help reduce the strain on the grid, minimising the need for costly infrastructure upgrades.


Ambrion Solar Battery

Financial Incentives and Support

The initial cost of solar batteries can be significant, but various financial incentives can help offset these costs. Look for government rebates, subsidies, and low-interest loans to make solar batteries more affordable. These incentives reduce the upfront investment and shorten the payback period, making solar batteries a financially viable solution.

The Sun Tax represents a significant shift in how solar energy is managed and monetised, posing new challenges for solar homeowners. However, investing in a solar battery can protect your investment by mitigating the effects of this policy. By avoiding daytime penalties, maximising evening rewards, increasing energy independence, and enhancing grid stability, solar batteries offer an all-in-one solution to navigate the changing energy landscape.

For more information on how solar batteries can help you counteract the Sun Tax and protect your solar investment, contact our team of experts. We’re here to guide you through every step of the process, ensuring you make the most of your solar energy system.