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.
Wollongong's combination of good sun hours, high solar adoption, and coastal lifestyle makes batteries an attractive investment.
Wollongong is served by Endeavour Energy. With 4.5 average daily sun hours, a well-sized battery system can significantly reduce grid dependence and electricity costs.
Wollongong 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.
Wollongong is served by Endeavour Energy. They have standard processes for battery connections, with most residential installations approved without special requirements.