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
96% 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.
Perth enjoys more sunshine than any other Australian capital city, making solar panels and batteries exceptionally effective.
Perth is served by Western Power. With 5.4 average daily sun hours, a well-sized battery system can significantly reduce grid dependence and electricity costs.
Perth residents qualify for the Cheaper Home Batteries Program:
From 1 July 2025, WA offers state battery rebates that stack with the federal rebate - up to $5,000-$7,500 total for a 10kWh battery.
Yes, WA residents get BOTH the federal rebate (~$372/kWh) AND the new WA Residential Battery Scheme ($130/kWh Synergy, $380/kWh Horizon Power). Combined rebates of ~$5,020-$7,520 for a 10kWh battery. WA operates on the SWIS grid (not NEM).
Solar soaking occurs when high rooftop solar generation pushes wholesale prices negative during midday. A battery lets you store this valuable solar instead of exporting for near-zero value.