As energy prices continue to rise in Australia, more homeowners and businesses in Sydney are turning to solar energy as a cost-effective and sustainable solution. If you’re considering installing solar panels, understanding the costs involved is essential. In this guide, we’ll break down the solar panel installation cost in Sydney, the factors affecting the price, available incentives, and how to choose the best solar system for your needs.

How Much Does Solar Panel Installation Cost in Sydney?

The cost of installing solar panels in Sydney varies based on the system size, brand, panel efficiency, and installation complexity. Here’s an estimate of the average costs:

Residential Solar System Costs

System Size Estimated Cost

6.6kW: $4,500 — $9,000 $3,000 — $6,500

10kW: $7,000 — $14,000 $4,500 — $10,000

Commercial Solar System Costs

System Size Estimated Cost (Before Rebates)

20kW: $15,000 — $25,000

50kW: $40,000 — $70,000

100kW: $80,000 — $140,000

Factors Affecting Solar Panel Installation Cost

1. System Size and Capacity

The bigger the system, the higher the initial investment. However, larger systems provide greater energy savings in the long run.

2. Solar Panel Brand and Efficiency

Premium brands like SunPower, LG, and REC cost more but offer higher efficiency and durability compared to budget options.

3. Type of Solar Inverter

String inverters are cheaper, whereas microinverters and hybrid inverters (for battery storage) cost more but offer better performance and flexibility.

4. Installation Complexity

Roof type (tile, tin, flat, or steep roof)
Accessibility and structural adjustments required
Electrical upgrades or additional work needed

5. Battery Storage (Optional)

Adding a battery, like a Tesla Powerwall or Sungrow battery, increases the cost by $5,000 to $15,000 but provides energy independence and backup power.

Government Incentives & Rebates in Sydney

1. Small-Scale Renewable Energy Scheme (STCs)

The federal government provides STC rebates based on the size of your system and your location.
For a 6.6kW system, the rebate is approximately $2,500 — $3,500.

2. New South Wales Solar Rebates

The Empowering Homes Program offers interest-free loans for battery and solar installation.
The Solar for Low-Income Households Program provides free solar panels for eligible families.

3. Feed-in Tariffs

Energy providers pay homeowners for excess solar power exported to the grid.
Rates range from 5c to 12c per kWh, depending on the retailer.

How to Choose the Right Solar System in Sydney

Step 1: Assess Your Energy Needs

Check your electricity bill to determine your average daily consumption in kWh. This helps in choosing the right system size.

Step 2: Consider Your Roof Space

A 6.6kW system requires around 36–40m² of roof space, while a 10kW system needs approximately 50–60m².

Step 3: Compare Solar Installers

Get multiple quotes from Clean Energy Council (CEC) accredited installers, like Ads Solar, to ensure quality installation and warranty coverage.

Step 4: Choose Quality Panels & Inverters

Opt for Tier 1 solar panels and reputable inverters for better efficiency and longevity.

Step 5: Evaluate Battery Storage

If you want backup power or energy independence, consider adding a solar battery to your system.

Why Choose Ads Solar for Solar Panel Installation in Sydney?

✅ CEC-Accredited Installers

Our team of experts ensures high-quality, safe, and compliant solar installations.

✅ High-Quality Solar Products

We offer top brands like SunPower, Trina Solar, and Fronius for maximum efficiency and reliability.

✅ Affordable Solar Packages

Get the best value with our competitive pricing and flexible payment options.

✅ Excellent Customer Support

From consultation to after-sales service, we provide seamless support and guidance.

Conclusion: Is Solar Worth It in Sydney?

Yes! With rising electricity prices, generous government incentives, and abundant sunlight, solar panel installation in Sydney is a smart investment. Whether for residential or commercial use, a solar system can reduce your energy bills, increase your property value, and contribute to a greener environment.

Contact Ads Solar today for a free quote and expert advice on solar panel installation in Sydney!