Australia already leads the world in rooftop solar adoption, and batteries are quickly becoming the next step for households and businesses wanting more control over their energy.

In Victoria, a combination of federal incentives continues to reduce the cost of installing solar panels and battery storage. However, from 1 May 2026, the way the federal battery rebate works will change.

The good news:
Battery incentives are not disappearing.

But the structure of the rebate will shift, which may affect the size of the discount depending on when you install and how your battery system is designed.

Here’s a clear breakdown of the solar and battery rebates currently available in Victoria and what the upcoming changes mean.

What Solar Rebates Are Available in Victoria?

The main incentive for rooftop solar in Victoria is the federal solar rebate, delivered through the Small-scale Renewable Energy Scheme (SRES).

Under this scheme, solar systems generate Small-scale Technology Certificates (STCs) when they are installed. These certificates have a market value and are typically applied as an upfront discount on the system price.

For most Victorian households, this rebate can reduce the cost of a solar installation by several thousand dollars.

A few key points:

• The rebate applies to solar systems up to 100 kW
• It reduces slightly each year as part of the scheme’s gradual phase-down
• Most installers handle the certificate process for you

Despite the gradual reduction, the solar rebate remains one of the biggest drivers of rooftop solar adoption in Australia.

Is There a Battery Rebate in Victoria?

Yes; and this is where the new changes in 2026 come into play.

Battery storage is now supported through the same federal framework as solar via the Small-scale Renewable Energy Scheme.

Under the Cheaper Home Batteries Program, batteries generate STCs based on their usable storage capacity, which reduces the installation cost.

The rebate generally applies to:

• A battery system between 5kWh and 50kWh
• Which is up to a total maxiumum system of 100kWh 
• Calculated on the usable capacity

For many homes, the incentive can reduce battery installation costs by around 25–30%, depending on certificate values at the time. It may seem convoluted, but we can walk you through it and ensure we can take full advantage for your eligibility. 

This support is designed to encourage households and businesses to store their solar energy instead of exporting it to the grid.

What Changes to the Battery Rebate on 1 May 2026?

From 1 May 2026, two key changes will take effect.

These adjustments are intended to keep the program sustainable as battery prices fall.

1. The Battery Rebate Will Gradually Decrease

The value of the rebate is controlled by something called the STC factor.

From May 2026:

• The STC factor will reduce every six months
• The reduction rate will increase slightly

This means the incentive will gradually decline over time, similar to how the solar rebate has stepped down over the years.

For homeowners and businesses considering battery storage, this means the available rebate will generally be higher the earlier a system is installed.

2. Larger Batteries Will Receive a Smaller Rebate per kWh

The rebate will also move to a tiered structure based on battery capacity.

From May 2026:

In simple terms, the strongest support applies to the first portion of storage capacity, with larger systems receiving a reduced incentive for additional capacity.

This change encourages appropriately sized batteries rather than oversizing systems purely to maximise rebates.

Is a Solar Battery Worth It in Victoria?

Whether a battery makes financial sense depends on a few factors:

• Your electricity usage patterns
• Your solar system size
• Your electricity tariff
• Whether backup power is important to you

Feed-in tariffs in Victoria have dropped significantly over the past decade, which means exporting solar energy to the grid is far less valuable than it once was.

For many households, using stored solar energy in the evening can deliver better long-term value than exporting it during the day.

But the financial case is only part of the story.

Solar Batteries and Energy Resilience

At Buffalo Stand-alone Power Solutions, we spend a lot of time talking about energy resilience, not just electricity bills.

Extreme weather events, network constraints, and an increasingly electrified economy mean that reliable power matters more than ever.

Battery systems can help:

• Keep essential loads running during outages
• Reduce reliance on volatile electricity prices
• Improve self-sufficiency
• Provide a buffer during grid disruptions

For households, farms, and small businesses; particularly in regional and storm-prone areas; this resilience can be just as valuable as the financial return.

The Bottom Line

From 1 May 2026, the federal battery rebate will change, but it isn’t going away.

The key things to remember are:

• Solar rebates remain available in Victoria
• Battery incentives are still in place
• The rebate will gradually decrease over time
• The strongest support applies to the first portion of battery capacity

As always, the right system depends on how you use energy, not just the size of the rebate.

Thinking about solar or battery storage?

A properly designed system should consider:

• energy usage patterns
• future electrification (EVs, heat pumps, etc.)
• backup requirements
• long-term energy resilience

The rebates help; but good system design matters far more than chasing incentives.