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
100% 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.
Darwin has Australia's highest solar radiation levels, making it ideal for solar-battery systems. The tropical climate means high air conditioning loads, and a battery can significantly reduce peak electricity costs.
Darwin is served by Power and Water Corporation. With 6.2 average daily sun hours, a well-sized battery system can significantly reduce grid dependence and electricity costs.
Darwin residents qualify for the Cheaper Home Batteries Program:
The NT Home & Business Battery Scheme closed in June 2025 after reaching its $6M funding cap. Only the federal rebate is available.
Darwin residents qualify for the federal Cheaper Home Batteries rebate (~$372/kWh in 2025). The NT doesn't have an additional state rebate, but the excellent solar resource means faster payback times.
Darwin has Australia's best solar conditions with 6.2+ average sun hours daily. A 5kW system can generate 25-30 kWh on a typical day, easily charging a battery and powering air conditioning.
No, Darwin operates on the Darwin-Katherine grid, separate from the NEM. Power and Water Corporation manages the network. This means different pricing structures but the federal battery rebate still applies.
Absolutely. Darwin's high air conditioning loads (often 40%+ of household usage) make batteries valuable for peak shaving. Combined with excellent solar, ROI is typically 5-7 years even without state rebates.