Have questions about battery systems or want personalised advice for your home?
Contact Us →Have questions about battery systems or want personalised advice for your home?
Contact Us →How a 5kW solar system fills a 13.5kWh battery each month
89% of battery charging from solar
In winter months, grid charging tops up your battery. With the right energy plan, you can charge during off-peak periods at very low rates - or even free.
Monthly averages based on typical weather. Cloudy days and seasonal variation mean some days will need grid top-up to fully charge your battery. Assumes ~35% of daily usage (5 kWh) during solar hours.
Sydney households benefit from excellent sun hours and access to the federal battery rebate. The state's Empowering Homes program was replaced by the federal scheme.
Sydney is served by Multiple (Ausgrid, Endeavour Energy). With 4.6 average daily sun hours, a well-sized battery system can significantly reduce grid dependence and electricity costs.
Sydney residents qualify for the Cheaper Home Batteries Program:
NSW offers a VPP incentive worth $40-55 per kWh of battery capacity, which nearly doubled from 1 July 2025 and stacks with the federal rebate.
NSW suspended the Empowering Homes battery loan program when the federal Cheaper Home Batteries Program was announced. Sydney residents should now apply for the federal rebate (~$372/kWh in 2025).
Most Sydney homes with 6-10kW solar systems benefit from 10-15kWh batteries. This covers typical evening usage when solar isn't generating and grid prices are highest.