6.6 kW Solar System: Prices, Panels & Installation
A 6.6 kW solar system is the most popular choice for households in Perth, Australia, to save money on electricity bills.
6.6kW Solar System Details
System Size
6.6kW
Daily Usage
26 to 29 kWh
Ideal For
Medium Sized Homes
Rebate
From $1,674
What’s Included
14 to 15 Premium solar panels Tier 1
5kW high-efficiency solar inverter
CEC-approved mounting system
Grid connection and commissioning
Professional installation
Electrical safety equipment and isolators
Smart monitoring via mobile app
10 years workmanship warranty
Optional Upgrades
Solar Battery
Hybrid Inverter
Rebate and Finance Options
6.6 kW solar system price depends on the choice of solar products, location, and roof space. The federal government provides STCs for solar panels, which help buyers to reduce the cost of the solar system. To get the best value for your investment, choose a reputable and leading solar panel installation company that offers premium products, quality workmanship, and transparent pricing.
When you install only solar panels with an inverter, you can get a solar panel rebate called STC from the federal government, but if you add a battery with your solar panels, you can get the battery rebate from the federal government and the WA state government.
System Type | Solar System Average Price Before Rebate | Solar System Average Price After Rebate |
6.6 kW Solar System (No Battery) | $6,674 - $9,674 | $5,000 - $8,000 |
6.6 kW Solar + 10- kWh Battery | $11,000 - 13,000 | $7,184 - $9,184 |
Note: A 6.6 kW solar system includes solar panels and a 5 kW solar inverter, which cost around $6,674-$9,674, and a 6.6 solar system with a 5 kW inverter and a 10 kW solar battery costs around $11,000-$13,000 without rebate. The total cost of the system may vary on your choice of product brands like panels, inverter, and battery. Because different brands offers varies level of performance, warranty, and features in solar products. The STC rebate value changes regularly based on the market price of Small-scale Technology Certificates (STCs). Please contact Solar 365 for the latest pricing and rebate estimates.
Average 6.6kW System Prices in Major Cities
In Australia, pricing for solar systems varies across states and cities, depending on factors such as system size, average sunshine hours, electricity retailer rates, state rebates, and eligibility criteria.
Here is the approximate amount of a 6.6 kW solar system without a battery, according to different cities:
City | Solar System Average Price Before Rebate | Solar System Average Price After Rebate |
Perth | $6,674 - $9,674 | $5,000 - $8,000 |
Melbourne | $6,100 – $9,200 | $4,650 – $7,750 |
Brisbane | $5,800 – $8,700 | $4,126 – $7,026 |
Sydney | $6,000 – $9,000 | $4,326 – $7,326 |
Adelaide | $5,700 – $8,500 | $4,026 – $6,826 |
Note: These are average market prices for a standard 6.6 kW solar system without a battery. Final pricing depends on the panel and inverter brands, roof type, installation complexity, and your postcode. The federal STC rebate has already been deducted from the "After STC Rebate" prices.
Benefits of a 6.6 kW Solar System
1. Significant savings on electricity bills: A 6.6 kW solar system generates 26- 29 kWh of energy per day. It reduces your power bill by 50-75%, depending on your energy usage and location.
2. Ideal for most Australian homes: This system size is perfect for a home with 3 to 5 people, covering the daily electricity needs of an average family.
3. Faster return on investment: With the government incentives and rebates and ongoing savings on electricity bills, most of the homeowners recover their invested amount of money in a solar system within 3 to 5 years.
4. Increase property value: Homes with a solar system sound more attractive to buyers and are also beneficial for saving money on electricity bills and increasing their home values.
5. Low maintenance: Solar systems need low maintenance and perform for almost 30 to 35 years with proper maintenance. Occasional cleaning is usually enough for the solar system.
6.6kw Solar System Installation
Before installing a solar system at a customer's property, a solar installation company seeks government approval for solar rebates and STCs. After all documentation and approvals are in place, installation takes 1 to 2 days. The installation process includes:
Custom solar system design
Roof mounting and panel installation
Solar inverter installation
Electrical wiring and safety testing
Grid connection and system commissioning
Monitoring app setup for real-time performance tracking
Why Choose Solar 365
We have been working in the Australian solar industry for more than 5 years. We understand the climate conditions of Australia, and we deliver the right solar system size to our customers, which performs perfectly.
We use only tier-1 or modern-technology solar products, which are more efficient than traditional ones.
Our services do not end with installation. After installation, if you face any issues with your solar system in the future, you can contact our team, who will help you resolve the problem as soon as possible.
If you want our premium installation services, you can contact us by email or call. You can visit our website, review our packages, fill out our query form, and our team will reach out to you within 24 to 48 hours.
We provide our installation services across Perth with our expert team and verified electricians, who install the systems at the customer's property with full safety.
I recently had a 30kw battery system with 24 x 475kw solar panels and a 12kw Inverter installed at my new house at Baldivis. Solar365 did a great job for me. I have yet to receive the first bill but Solar365 were very helpful with the supply and Installation. Bob Drysdale
I had a great experience throughout my solar system installation. Radhika and Solar 365 team were professional and supportive from start to finish. They made the entire process smooth, efficient, and hassle-free, keeping me informed every step of the way. Their commitment to quality service and customer satisfaction was evident throughout the project. I truly appreciate their dedication and would highly recommend them to anyone considering a solar installation.
Solar365 were fantastic from start to finish. The whole process — from the initial quote through to installation — was smooth, professional, and absolutely faultless. Rahul and Vansh were extremely helpful, and their communication throughout was excellent. The quote was fair, the customer service was outstanding, and the team delivered exactly what they promised. Highly recommend Solar365 for anyone looking for a reliable and customer‑focused solar provider.
Had an excellent experience with Solar 365 of the installation of the inverter and battery at our property. Everything moved quickly with the upon signing up. Radhika was so helpful and professional. I highly recommend Solar365
Customer here from eastern Perth suburbs got installed with 16KW solar, 10kw-3phase inverter and 24kw battery. I am surprised how the solar from the sun really powers our household. However, I will comment that with Solar365 installers, they left all the boxes, rubbish and the old panels which I paid extra to be removed and cleaned. Overall, I am happy with a competitive price and service provided.
Our Installation Process
Get in touch
We handle everything
Get installed
Enjoy Your Free Power
5/13-15 Harvard Way,
Canning Vale WA 6155,
Australia.
info@solar365.net.au
Contact
(08) 6119 3653
Other Solar System Packages
7.7/8kW Solar System
Includes:
- 17-19 high-efficiency solar panels
- 5kw inverter
- Wiring, protection devices
- Professional installation
- DC/AC protection, cabling
Benefits:
- Significant reduction in electricity bills
- Low maintenance and long lifespan
- Produces around 24-34 KWh per day
- 900-1100 units per month on average
- Best for a large family or small offices
13.2kW Solar System
Includes:
- 28-30 high-efficiency solar panels
- 10kw Inverter
- Wiring, protection devices
- Professional installation
- DC/AC protection, cabling
Benefits:
- Significant reduction in electricity bills
- Low maintenance and long lifespan
- Produces around 50-60 kWh per day
- 1500-1800 units per month on average
- Best for a large family or small offices
10kW Solar System
Includes:
- 21-24 high-efficiency solar panels
- 10kw inverter
- Wiring, protection devices
- Professional installation
- DC/AC protection, cabling
Benefits:
- Significant reduction in electricity bills
- Low maintenance and long lifespan
- Produces around 38–48 kWh per day
- 1,150–1,450 units per month on average
- Best for medium to large families
Frequently Asked Questions
Yes, you can add a battery to your solar system. A solar battery helps you store extra solar energy and gives energy independence to your home. With a solar battery, you save more money on your electricity bills.
A 5 kW solar inverter is compatible with a 6.6 kW solar system. An inverter is the heart of the solar system; it converts sunlight into usable electricity for your home. A 5kw solar inverter provides the solar feed-in tariff to you.
Yes. Solar panels continue to generate electricity on cloudy days, although output is lower than on sunny days. The exact production depends on cloud cover and weather conditions.
When your solar panels produce more electricity, it is automatically exported to the electricity grid, and your electricity retailer pays you a feed-in tariff for the excess energy you export to the grid.
Common factors include: Shade from trees or nearby buildings; dirt and bird droppings on panels; poor roof orientation; extremely hot weather; Ageing equipment
A 6.6 kW solar system not only saves money but also reduces the carbon footprint. The amount of money saved depends on your location, the appliances you use in your house, and the electricity retailer. Customers can save approx. $1,500- $3,000 annually. A solar system helps you save almost $37,500 to $75,000 over the lifetime of solar panels. Investing in a solar system is a smart deal to save money for the future.
BRANDS WE INSTALL
