
7.7 kW Solar Systems Perth: Price, Panels, Installation
A 7.7kW solar system is ideal for medium to large-sized Australian homes, helping reduce electricity bills and power high-energy appliances.
7.7kW Solar System Details
System Size
7.7kW
Daily Usage
27 - 34 kWh per day
Ideal For
Medium to large house
Rebate
from $1,971
What’s Included
17 to 20 Premium solar panels (440W - 475W)
5kW to 8kW solar inverter
CEC-approved mounting system
Grid connection
Professional installation
Electrical safety equipment
Smart monitoring via mobile app
Workmanship warranty
Optional Upgrades
Solar Battery
Hybrid Inverter
7.7 kW Solar System Price in Perth
Australian government offers rebates and incentives to the public to help reduce the cost of solar systems. The number of STCs and rebates varies by state and eligibility criteria. Some states also offer rebates, like Western Australia. With solar rebates, you can save more on your grid expenses.
System Type | Average Price Before STC | Average Price After STC |
7.7 kW Solar System (No Battery) | $7,174 – $10,174 | $5,203 – $8,203 |
7.7 kW Solar + 10kWh Battery | $11,500 – $13,500 | $9,529 - $11,529 |
Note: These prices are average estimates for a standard 7.7 kW solar system, which includes solar panels and a solar inverter (excluding a battery). The final cost and the Federal STC rebate may vary depending on your location, installer, equipment selected, roof design, and installation requirements.
7.7 kW Solar System Price in Major Cities
The cost of the 7.7 kW solar system without a battery varies in every city because all cities have their own eligibility criteria for rebates and incentives and have different climate conditions, different energy needs, and sunshine hours.
Here is the approximate amount of a 7.7kW solar system without a battery, according to different cities:
City | Solar System Average Price Before Rebate | Solar System Average Price After Rebate |
Perth, WA | $7,174 – $10,174 | $5,203 – $8,203 |
Adelaide, SA | $6,200 – $9,000 | $4,229 – $7,029 |
Brisbane, QLD | $6,300 – $9,200 | $4,329 – $7,229 |
Sydney, NSW | $6,500 – $9,500 | $4,529 – $7,529 |
Melbourne, VIC | $6,600 – $9,700 | $4,629 – $7,729 |
Note: The actual price may vary a little bit according to your choice of solar products in a solar system, and this pricing does not include a solar battery.
Benefits of a 7.7kW Solar System
1. Lower electricity bills: A 7.7 KW solar system generates 27–34 kWh of energy per day, which significantly reduces dependence on the grid. This is enough energy for households that have 4 to 8 people or have heavy appliances.
2. Excellent Return on Investment: With the STC and savings on electricity bills, a 7.7 kW solar system typical have 3 to 5-year payback period.
3. Future-Ready for EVs and Batteries: A 7.7kW system provides enough capacity to support future upgrades, including home battery storage, electric vehicle (EV) charging, and smart home energy management systems.
4. Boosts Property Value: Homes with a solar system have more value than normal homes. The solar system looks good on the roof, and buyers also see the features that save money on electricity bills.
5. Low Maintenance: Solar panels require occasional maintenance, and they perform for 25 to 30 years with maintenance and care.
7.7 kW Solar System Installation
For installing a solar system at your property, there is a process that takes 3 to 4 weeks. Because government approvals matter more for installation, government rebates and incentives help customers to reduce the cost of the solar system and make it affordable to get approvals.
Solar 365 does all documentation and paperwork on the customers' behalf, and customers enjoy a hassle-free installation process. 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
With more than 5 years of experience, our experienced team is now an expert in understanding the climate conditions of Australia and delivers the best and right solar system to customers.
We have contact with globally established manufacturers for premium and new technology-based solar products, which are highly efficient for Australian climates and perform well for customers' needs.
We are one of those companies that provides ongoing support to its customers. That means if, in the future, after installation, you face any solar-related problem, you can contact us, and our team will help to resolve your problem proble as soon as possible.
If you reach out to us by email, call, or by our query form, our solar expert will give you a response within 24 to 48 hours.
Solar 365 provides its premium solar installation services across Australia with solar experts, certified electricians, and locals.

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
5/13-15 Harvard Way,
Canning Vale WA 6155,
Australia.
info@solar365.net.au
Contact
(08) 6119 3653
Other Solar Panel Packages
6.6kW Solar System
Includes:
- 15-18 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 24-28 KWh per day
- 850-1000 units per month on average
- Best home with 3-5 people
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
- 8kw 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 install solar panels on a tile roof. In fact, solar panels can be installed on metal, Colorbond, and other common Australian roof types.
No, installing solar panels does not mean changing the electricity retailer. If you want to compare electricity prices or plans to find one that offers a higher feed-in tariff its depends on you. But finding the difference in a particular area a little bit challenging for you.
If you move into a new house or property, then most of the time, solar systems are left with the property and can increase its value. If you are building a new house, it’s uysually be install a new solar system than to relocate the old one because the location and area are different from the old house.







