General Price of a 10kW Solar Battery Price in NSW
As of May 2025, the average installed cost of a 10kWh solar battery in NSW ranges from $9,000 to $13,000, or $900–$1,300 per kWh, depending on brand and installation complexity. At SolarBright, our high-quality options, like the Sonnen Batterie Evo 10 (10kWh), offer excellent value and performance.
Updated Pricing with NSW and Federal Rebates
Take advantage of generous government rebates to make your solar battery system more affordable:
- NSW Battery Rebate: ~$1,400 for a 10kWh battery (effective November 1, 2024).
- Federal Battery Rebate: ~$3,500 for a 10kWh battery (effective July 1, 2025, for installations after April 6, 2025).
- SolarBright Incentive: ~$1500 for a 10kWh battery
- Combined Savings: Up to $6,400 in total rebates.
Talk to an expert about savings
Note: Prices are current as of May 2025 and may change. Rebate eligibility requires installation by certified professionals like SolarBright. Regional pricing and complex installations may incur additional costs.
Surging Electricity Prices
Why Choose a 10kWh Solar Battery?
With electricity prices soaring in NSW, a 10kWh solar battery (often searched as a “10kW solar battery”) paired with a 6.6kW solar system is a smart choice for energy independence.
This battery stores excess solar energy generated during the day to power your home at night, reducing your reliance on the grid and protecting you against blackouts.
- Meets Average Needs: The average NSW household consumes 15.5 kWh/day, with peak usage from 4–9 PM. A 10kWh battery covers nighttime needs for most homes.
- Backup Power: Provides emergency power during grid outages, ensuring energy security.
- Cost Savings: A 6.6kW solar system produces ~25 kWh/day to power your home and charge the battery.
Save Big on Sonnen Evo 10kW Solar Battery with Rebates
German designed and engineered, the compact sonnen EVO solar battery is an innovative home storage system. It will also provide emergency backup power for the home in the event of blackout.
Main features include:
- 10 Year Warranty
- Premium brand in home battery technology
- Emergency Back Up Power
- Smart, Safe, and Built for Everyday Living
- User Friendly Monitoring App
Disclaimer:
Rebates quoted include NSW, Federal & Retail battery incentives.
Save With Solar Battery Rebates
Make the most of the Federal and NSW battery rebates, along with our reseller discount.
Battery Sizing
Is a 10kW Solar Battery Right for Me?
When deciding if a 10kWh solar battery is the right size for your needs, there are several factors you need to consider:
- How much electricity in kWh does your household consume each day? This is on your electricity bill. Compare all four bills over the course of the year to see the seasonal changes in your power use.
- Also try to estimate the electrical consumption at night. During the day solar system powers the house and any excess electricity produced by the by the panels fills the battery. This stored electricity powers the house at night.
- According to the Australian Energy Regulator the average daily household electricity consumption in NSW is 15.5kWh per day. This averages to .645kWh per hour across 24 hours.
- Also remember more energy is consumed in the early evening hours rising from 4pm to 9pm.
With these factors in mind a 10kWh solar battery is adequate to meet the needs of an average household at night. If you need more capacity we offer several modular battery systems that allow us to design right sized battery for you.
Solar Sizing
What Size Solar System Is Needed to Fill a 10kWh Solar Battery?
The solar system must produce enough electricity to power the house during the day and have enough excess production to fill the 10kWh battery.
According to the Clean Energy Council (CEC) a typical solar system in NSW over the course of the year will produce 3.9kWh of electricity per day for each 1kW of solar system size. This average considers rainy and cloudy days when production is lower.
This means a 6.6kW solar system will have an average daily production of 6.6 x 3.9 = 25.74kWh of electricity per day in NSW.
This will vary according to season. In summer with long days the system may produce up to 35kWh of electricity. During shorter winter days this may drop to 16kWh per day.
So, on average a 6.6kW solar system would easily cover up to 10kWh of power in daylight hour. It will also fill the 10kWh battery and still export 5kWh back to the grid. Bear in mind you will be lucky if you get paid six cents per kWh for this export!
Secure Your Energy Future
Looking to Start the Solar Battery Journey?
Why SolarBright?
As a family-owned Australian business since 2008, SolarBright has helped thousands of families and businesses save on power bills with high-quality solar and battery systems. Our experienced energy specialists provide obligation-free on-site assessments, analysing your electricity bills to design the perfect system for your needs.
- Trusted brands: Sungrow, Tesla, and more.
- 10-year battery warranties and 30-year solar panel warranties.
- Expert installation meeting Australian standards.