How Much Money Can You Save With Solar Panels In Australia?

ByBNW TEAM

Australian households can typically save about $1,200 to $2,500 a year with solar panels, although the exact figure depends on how much electricity you use, the size of your system, and the rates you pay. For many homes, that still commonly works out to roughly $800 to $1,400 in annual bill savings depending on system size and usage patterns.

If you’re an Australian homeowner weighing up whether solar is worth it, the key question is how those savings stack up against the upfront cost. This guide breaks down what affects your bill savings, how to estimate your current electricity use, how system sizing changes the numbers, and what to expect from installation costs, government rebates, feed-in tariffs, battery storage, payback periods, and the practical steps that can help you maximise solar savings.

It also helps to separate direct bill reduction from export income: most savings come from using your own solar power during the day, while extra value can come from sending unused electricity back to the grid. In high self-consumption households, solar panels can cut electricity bills by up to 95% for some users, but that is not typical. With electricity prices rising and incentives still available, understanding these numbers upfront makes it much easier to judge the real financial benefit of going solar.

Find Your Current Electricity Bill Usage

  1. Show readers where to find annual usage on electricity bills, usually listed in kilowatt hours on most bills, to see how much electricity your household consumes over a year.
  2. Explain how to calculate average daily consumption by dividing annual usage by 365. What your household consumes each day helps estimate the right system size and likely savings, and comparing daytime use with overall power usage can also show how much solar you may use yourself.
  3. Compare your current electricity costs with projected solar savings by using your current bill and energy usage as the baseline for comparison.

How Solar Works To Reduce Electricity Bills

Solar panels convert sunlight into usable electricity for your home. During the day, they produce solar power that can run appliances and reduce how much energy you need to buy from the grid.

When your system is generating electricity, the electricity generated is used by your home first, which lowers the amount you need to purchase from your energy retailer. If your panels produce more than you use at that moment, any excess power can be exported to the electricity grid.

Self-consumption usually saves you the most money

In most cases, the biggest savings come from using your solar power at home, because each kilowatt-hour you use yourself avoids buying electricity from the grid at roughly 30¢ to 45¢ per kWh. That is usually worth far more than the feed-in tariff you receive for exporting excess solar.

This is why it often makes sense to shift flexible appliances, like dishwashers, washing machines, pool pumps and electric hot water systems, into the middle of the day so you use more energy while your panels are generating instead of exporting it for a low credit. Homes also tend to save more when they use more electricity from their own system and avoid importing from the grid later.

If your system produces more power than your home is using at that moment, the surplus can be exported for a feed-in tariff. But because feed-in tariffs are usually much lower than the retail rate you avoid by using your own solar first, self-consumption is often where the strongest value lies.

Earnings From Solar Exports

  1. Explain how exported electricity earns a feed in tariff: A feed-in tariff is the credit your retailer pays for solar power you export to the grid, and exported excess solar energy often earns around 10 cents per kWh depending on your plan.
  2. Clarify why export credits vary between retailers: Rates differ by retailer, location, and contract, so the value of each exported kWh can change; for example, Victorian feed-in tariff rates are often around 3 to 6 cents per kWh.
  3. Mention export limits that can reduce available savings: Some homes face export limits set by the network, which can cap how much solar can be sent back. Households earn credits only on power sent to the grid after on-site use is met.

Choose The Right Solar System Size

  1. Match solar system capacity with household electricity usage: To work out the best size, match a solar power system to your energy needs and daytime power usage, not just your total annual electricity consumption.
  2. Compare typical output from common system sizes: As a guide, a new solar system in the 5kW to 6.6kW range can often generate around 20 to 27 kilowatt hours on an average day, though this varies by location and season; a rooftop solar system at the larger end will generally produce more. If it regularly generates more electricity than your home uses during the day, the surplus may be exported to the grid or stored in a battery.
  3. Explain how roof orientation affects solar generation: North-facing panels usually deliver the strongest output in Australia, while east- or west-facing roofs can still perform well depending on when your household uses the most electricity.

How Solar Panels Produce Energy

  1. Describe the photovoltaic process in simple language
  2. Explain seasonal changes in solar panel output
  3. Mention shading as a cause of reduced generation

Solar Panels Cost And Initial Investment

  1. Provide current Australian solar panels cost ranges, noting that in 2024 solar panel installation costs in Australia commonly range from AUD $5,000 to $10,000.
  2. Separate equipment costs from installation charges so readers can see what they are paying for.
  3. Explain how system quality affects the initial investment; quality solar panels often include a 25-year performance warranty.
  4. Compare smaller systems with higher-capacity systems, for example noting that a 6.6kW system costs about $7,000; when weighing the upfront cost against long-term value, this setup can pay back in about 4.4 years.

Government Rebates That Reduce Solar Costs

Government rebates can lower the upfront cost of a residential system, mainly through the Australian government’s Small-scale Renewable Energy Scheme, which supports households generating their own energy with renewable energy.

Under this scheme, eligible installations receive Small-scale Technology Certificates (STCs), which your installer usually applies as a point-of-sale discount, significantly lowering the purchase price; each certificate is typically worth around $35 to $40.

In some cases, the scheme can reduce installation costs by as much as 50%.

Eligibility generally depends on factors like system size, location, and whether the installation meets current standards. Because rebate values change over time, it’s worth confirming the latest settings with reputable solar installers or your state energy website.

Some states also offer extra incentives, such as battery rebates, low-interest loans, or feed-in tariff programs, which can further improve overall savings.

Compare Feed In Tariff Electricity Plans

  1. Explain how feed in tariff rates affect savings
  2. Feed in tariff rates do affect savings, but they are only one part of the equation. Lower usage charges and supply charges can reduce your energy bills even if the feed in tariff is not the highest.
  3. Compare high FiT plans with lower usage charges
  4. A plan with a high feed in tariff is not always the best deal. The right option depends on how much electricity you still buy from your energy retailer as well as how much you export. Some households focus too much on export credits, when the bigger win is often cutting ongoing power bills by using more of your solar at home.
  5. Recommend checking supply charges before switching retailers
  6. Before switching, compare the full plan, including supply charges, usage rates, and the feed in tariff.

Will The Highest Feed In Tariff Save The Most Money?

  1. Show why lower usage rates can outweigh export credits, because using your solar power on site is usually worth more than exporting it and can improve overall solar worth
  2. Include a simple electricity plan comparison, noting the best option depends on your energy usage and expected solar exports, not just the headline feed-in tariff, and compare total annual savings against your current bill
  3. Encourage readers to review the plan fact sheet

How Battery Storage Can Increase Solar Savings

  1. Explain how solar battery storage captures stored energy from surplus daytime generation for later use
  2. Show how a battery system supports evening self consumption by letting households use solar power after sunset instead of buying from the grid
  3. Compare battery savings with additional purchase costs, noting the Cheaper Home Batteries Program can cut battery costs by up to 30%
  4. Mention backup power as a separate benefit
  5. Add that batteries can also reduce exports and may help some households avoid future sun tax-style charges

Solar-only savings vs solar battery savings

A solar battery can increase your total savings over time, but it also adds a significant upfront cost. In many cases, a solar-only system gives a faster payback because batteries are still expensive, and a solar-and-battery system may take about 10.5 years to pay back. Some households still value batteries for energy independence and backup during a power outage.

Batteries tend to extend the payback period because the extra cost is often higher than the extra bill savings they deliver. They’re usually a better fit for homes with high evening energy usage or for households that want to store excess power instead of exporting it to the grid.

Calculate The Solar Payback Period

  1. Define payback period using a simple calculation
  2. Compare typical solar payback periods across Australia
  3. Explain why battery payback periods are longer
  4. Include maintenance costs in long-term calculations

Example Solar Savings Calculation

  1. Create a sample household electricity bill
  2. Calculate annual savings from self consumption
  3. Calculate annual income from solar exports
  4. Divide the initial investment by annual savings

What Factors Change Your Solar Savings?

  1. Explain how household usage patterns affect savings
  2. Discuss local sunlight conditions
  3. Mention electricity prices as a major variable, noting that energy prices have historically trended upward, which can increase savings over time; installing solar can also help stabilise energy costs and reduce exposure to future price rises
  4. Explain how system degradation affects long-term returns

How To Get The Most Money From Solar Panels

  1. Recommend running appliances during daylight hours so your system is generating electricity during solar hours and you can use that power immediately.
  2. Suggest monitoring daily solar production and comparing the electricity generated with your household demand to increase self-consumption.
  3. Explain how energy efficiency improves savings.
  4. Households can also reduce peak demand by timing large appliances to run when solar is available or when a battery can discharge.
  5. Encourage regular electricity plan comparisons

Is A Solar System Worth It In Australia?

  1. Summarise the financial case for solar ownership, including the financial benefits of lower running costs and, in some cases, higher property appeal.
  2. Compare solar savings with current electricity costs and the long term savings they may deliver as power prices rise.
  3. Explain when solar may deliver limited value, while noting that solar worth depends on your usage, system quality, and whether you also value clean energy and a smaller carbon footprint.
  4. Encourage personalised quotes before making a decision, and remember that homes with solar systems often command higher market values, although savings still depend on usage and system quality.

Use A Solar Savings Calculator

  1. Prompt readers to enter electricity usage, including their current bill and power usage
  2. Include system size comparison results, and note that a good calculator estimates electricity bills after installing solar panels and after any battery system is added
  3. Show projected electricity bills after installation
  4. Add a clear quote comparison call to action that checks solar providers’ assumptions about system size, exports, and battery options if relevant