10kW Residential Solar System

What is a 10kW Solar System?
A 10kW solar system is a robust solution for larger households or small businesses looking to significantly reduce their electricity bills and become energy independent. It’s a popular choice due to its ability to generate substantial power output, making it ideal for homes with higher-than-average energy consumption or those planning to power large appliances and systems.
How Many Solar Panels Does a 10kW Solar System Have?
The number of panels in a 10kW system depends on the wattage of each solar panel. Modern solar panels typically range between 440W to 500W, so a 10kW system will require about 20 to 25 panels.
Panel Capacity | Number of Panels |
---|---|
440W | 23 panels |
475W | 21 panels |
500W | 20 panels |

How Much Electricity Does a 10kW Solar System Produce?
A 10kW solar system produces approximately 35 to 44 kWh of electricity per day, depending on your location and the system’s efficiency. This amount is often more than enough to meet the daily energy requirements of larger households or small businesses.
Location | Daily Output (kWh) |
---|---|
Sydney | 38-42 |
Brisbane | 39-44 |
Melbourne | 35-39 |
Adelaide | 37-41 |
Perth | 40-44 |

What Are the NSW Rebates for the 10kW Solar System?
In NSW, homeowners can benefit from several rebate programs, including:
- Small-scale Renewable Energy Scheme (SRES): This federal incentive provides financial savings through Small-scale Technology Certificates (STCs), which can offset the upfront cost of the solar system.
- Empowering Homes Program: This program offers interest-free loans for solar and battery installations for eligible NSW households.
These rebates can reduce the overall cost of a 10kW solar system by up to 30%.
How Long Will It Take for the System to Pay for Itself?
The payback period for a 10kW solar system typically ranges from 3 to 6 years, depending on several factors like energy usage, feed-in tariffs, and local electricity rates. In New South Wales, with typical energy savings and the right feed-in tariffs, you could save between AUD 2,000 to AUD 3,500 per year on electricity bills, accelerating the payback period.
What is the Cost of a 10kW Solar System?
The cost of a 10kW solar system in Australia typically ranges from AUD 3,800 to AUD 4,800, depending on the quality of the panels, inverter brand, and installation complexity. However, government rebates and incentives, like the Small-scale Renewable Energy Scheme (SRES), can significantly reduce these costs.

System Tier | Estimated Price (AUD) |
---|---|
Budget | $3,800 |
Standard | $4,300 |
Premium | $4,800 |
This price includes the federal Small-scale Renewable Energy Scheme (SRES) rebate, which can lower the upfront cost significantly
Inverter and System Performance
A 10kW solar system typically uses a 8 to 10kW inverter, which is responsible for converting the direct current (DC) from the panels into alternating current (AC) used by your home or business. The inverter size should match your energy consumption needs and the local grid’s capacity to handle solar energy exports.


Considerations for Battery Storage
Adding a battery to a 10kW solar system can enhance your energy independence by allowing you to store excess energy produced during the day. This stored energy can be used at night or during grid outages. For a 10kW system, a battery capacity of 10 to 15 kWh is usually recommended.
What Are the Cost Implications of Adding a Battery?
Batteries for solar systems generally cost between AUD 1,300 to AUD 2,000 per kWh of storage. Adding a 10 kWh battery to a 10kW solar system can range from AUD 10,000 to AUD 15,000, but government incentives and energy savings over time can offset this expense.
Battery Capacity (kWh) | Cost (AUD) |
---|---|
10 kWh | 13,000 – 15,000 |
15 kWh | 19,500 – 25,000 |
What Warranties Are Included with a 10kW System?
Most 10kW solar systems come with robust warranties, including:

Panel Warranty
Typically 10-25 years for performance guarantees.

Inverter Warranty
Generally 5-10 years.

Workmanship Warranty
Installers often provide a 5-10 year warranty on installation work
Ready to Install a 10kW Solar System?
Switching to solar is a smart investment for your home and the environment. Get started today by requesting a free, no-obligation quote from our certified solar installers. Maximize your savings with government rebates and reduce your carbon footprint.

