Solar Panel Installation in Australia (2025): Costs, Rebates & Top Providers

Arb Bishal

21 May, 2025

The Ultimate Guide to Solar Panel Installation in Australia (2025)

As Australia continues to embrace renewable energy, solar panel installation has become one of the smartest investments for homeowners and businesses alike. With abundant sunlight and generous government incentives, now is the perfect time to switch to solar power and enjoy long-term savings on your electricity bills. Whether you're in Sydney, Melbourne, Brisbane, or a regional town, this guide will help you understand everything you need to know before going solar.

Why Solar Energy Is Booming in Australia

Australia receives some of the highest levels of solar radiation in the world, making it a prime location for solar energy systems. Over 3 million Australian homes already have solar panels installed. Here are some of the key reasons why solar energy is booming:

Government Rebates and Incentives: The Small-scale Renewable Energy Scheme (SRES) offers financial incentives for eligible systems.
High Electricity Costs: Australians pay some of the highest electricity prices globally. Solar panels help reduce or eliminate monthly bills.
Environmental Impact: Going solar reduces your carbon footprint and reliance on fossil fuels.
Increased Property Value: Homes with solar installations often see an increase in market value.

How Much Does Solar Panel Installation Cost in Australia?

The cost of solar panel installation in Australia has dropped significantly over the past decade. However, prices vary depending on location, system size, panel brand, and installer.

System Size	Average Cost (AUD)	Estimated Savings per Year
3 kW	$3,000 – $4,500	$800 – $1,000
5 kW	$4,500 – $7,000	$1,200 – $1,800
6.6 kW	$5,500 – $9,000	$1,600 – $2,400
10 kW	$9,000 – $13,000	$2,400 – $3,600

These prices are before any STC rebates or state-based incentives, which can significantly lower your upfront cost.

Best Solar Panel Brands in Australia (2025)

Choosing a reputable solar panel brand is crucial for durability, efficiency, and long-term performance. Some of the top-rated solar panel brands in Australia include:

SunPower – Best for high-efficiency output.
LG Solar – Premium quality and performance.
JinkoSolar – Reliable and budget-friendly.
Trina Solar – Popular choice with great warranties.
Q CELLS – German engineering with solid reviews.

Make sure your installer provides Tier 1 solar panels, which are backed by bankability and performance.

How to Choose a Solar Installer in Australia

When selecting a solar installer, consider the following factors:

Clean Energy Council (CEC) Accreditation: Always hire CEC-accredited installers.
Customer Reviews: Check online reviews on platforms like ProductReview.com.au.
Warranty Terms: Look for at least 25 years of performance warranty and 5–10 years on workmanship.
After-Sales Support: Ensure the company provides ongoing support and maintenance.

🔍 Pro Tip: Avoid deals that seem too cheap—quality installations require proper planning and equipment.

Solar Battery Storage: Is It Worth It?

With the rise in solar adoption, many Australians are now considering solar battery storage systems. These allow you to store excess energy generated during the day for use at night or during blackouts.

Pros of Battery Storage:

Maximize solar usage
Reduce grid dependence
Provide backup during power outages

Popular Batteries in Australia:

Tesla Powerwall 2
SonnenBatterie
LG Chem RESU

While batteries can be expensive (starting from $8,000+), new government programs like South Australia’s Home Battery Scheme make them more accessible.

Government Rebates & Incentives in 2025

Australia offers a variety of rebates and incentives to encourage solar adoption:

Federal Government – STCs:

The Small-scale Technology Certificates (STCs) reduce the upfront cost of solar installations.
STCs are traded on a market, and your installer usually deducts their value from the total quote.

State-Based Incentives:

Victoria: Solar Homes Program – rebates for both panels and batteries.
Queensland: Interest-free loans and battery incentives.
NSW: Empowering Homes program for interest-free loans.
SA: Home Battery Scheme with subsidies for batteries.

📌 Note: Incentive availability and rates can change yearly—check with your local energy department.

Frequently Asked Questions (FAQs)

Q: How long does a solar panel system last?

A: Most systems last 25–30 years with regular maintenance.

Q: Can I install solar panels on a flat roof?

A: Yes, but it may require tilt frames for optimal sun exposure.

Q: Do solar panels work during cloudy days?

A: Yes, though performance may drop by 10–25%.

Q: Will I still receive an electricity bill?

A: Yes, unless you're entirely off-grid. However, your bill will be significantly lower.

Final Thoughts: Is Solar Worth It in Australia?

Absolutely. With generous government incentives, rising electricity prices, and environmental benefits, solar energy is a wise investment for most Australian households. The payback period for a standard 6.6kW system is typically 3–5 years, after which your energy is essentially free.

By choosing a reputable installer and quality equipment, you can future-proof your home while reducing your carbon footprint. As energy costs continue to climb, solar power gives Australians a way to take control of their utility bills and contribute to a cleaner planet.