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For households with solar already installed and evening electricity use above 8-10 kWh, yes - typically. With feed-in tariffs sitting at 2-5c/kWh and grid power costing 28-35c, the arbitrage value is around 25c per kWh stored. A 16 kWh battery cycling 300 days a year saves roughly $1,200 annually. Add a state rebate and payback can fall to 6-8 years against a 10-year warranty.

Depends on your priority. For pure value, the Sungrow SBR modular range is hard to beat. For compatibility with any inverter brand, the BYD HVM 16.6 is Australia's most-installed battery. For maximum backup output (11.5kW continuous), the Tesla Powerwall 3 leads the field. All three use LFP chemistry and carry 10-year warranties.

The Tesla Model 3 Long Range AWD (629km WLTP) and Hyundai Ioniq 6 Long Range AWD (614km WLTP) lead among mainstream EVs. In real Australian conditions - highway speeds, air conditioning - expect 15-20% less than WLTP.

The Myenergi Zappi is the standout for solar households - it adjusts its charge rate in real time to match surplus solar generation. The Fronius Wattpilot is another strong option if you have a Fronius inverter. Both the Evnex E2 Plus and Wallbox Pulsar Plus support solar divert and add OCPP compliance.

The federal Cheaper Home Batteries Program (active from July 2025) takes roughly 30% off most systems nationally - approximately $372 per usable kWh. WA offers an additional $1,300 via Synergy. ACT has interest-free loans up to $15,000. Check our State Rebate Checker for current state programs.

A typical 7kW home EV charger costs $1,200-$2,500 installed in Australia, depending on the brand and your switchboard setup. If your switchboard needs upgrading or the cable run is long, expect $2,500-$4,000.

For most Australian households, a 6.6kW system covers typical daytime usage and exports enough to offset evening consumption through feed-in credits. If you have a home battery or EV you want to solar-charge, step up to 10-13kW. Use our free Solar System Sizing Calculator for a personalised recommendation.

Yes - and it is one of the best reasons to pair solar with an EV. A solar-compatible charger like the Myenergi Zappi adjusts its charge rate to match your surplus solar, so your car charges on energy you would otherwise export at 2-5c/kWh. A 6.6kW system can add 30-40 km of free range per hour of sunshine.