What size solar system does my home need?
Most Australian households suit a 6.6 kW system, which is roughly 14 to 16 modern panels. Larger households with higher daytime use may suit 10 kW or more. Solar Chief sizes the system to your actual usage.
Residential Solar
HomeResidential Solar
Residential solar for NSW homes
Australian electricity prices are among the highest in the world, and they are unlikely to fall. That is why so many NSW homeowners are installing solar on their roof. A correctly sized system turns your roof into a power station and cuts the part of your bill that keeps rising.
Solar Chief is a CEC-accredited installer with more than 30 years of combined experience in solar and electrical work. We assess your home, size the system to your actual usage, and recommend the right panels, inverter and battery option for your needs and budget.
Why homeowners in NSW are going solar
- Lower electricity bills, most households save thousands over the life of the system.
- Protection against rising energy prices.
- A smaller carbon footprint for the home.
- Energy independence when paired with battery storage.
Common residential system sizes
| System size | Best for |
|---|---|
| 6.6 kW | A three to four bedroom home with average daytime use. The most common choice. |
| 10 kW | Larger households or homes with higher energy use, pools or multiple occupants. |
| 10 kW + battery | Homes that want evening self-consumption and backup protection. |
The average Australian household uses around 15 to 20 kWh a day. A 6.6 kW system can generate much of that during daylight, which is why it suits most homes.
What is included in a residential install
- Quality panels, JA Solar 475W in our standard packages.
- A correctly sized inverter matched to your panel array.
- Roof mounts, wiring and electrical safety testing.
- Grid connection paperwork and smart meter coordination.
- The STC rebate applied to your price where eligible.
Why choose Solar Chief
We design every system around the home it is going on, not a generic template. Our team handles the whole job from assessment to grid connection, and we stand behind the work with the full manufacturer warranties. If you later add a battery, we size and install that too.
Last updated: September 2026. System sizing and pricing are reviewed regularly.
Residential solar questions
How much can I save on my electricity bill?
Most households see a 50-100% reduction depending on system size, usage and whether a battery is included. A typical 6.6 kW system can save $1,500 to $2,500 per year.
How long does installation take?
Most residential systems are installed in one day, with grid connection paperwork completed by your installer.
Do I need a battery for a residential system?
No. A grid-tie system without a battery is the lowest entry cost and still reduces bills. A battery adds evening use and backup potential, and can be retrofitted later.
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