Estimate eligible 2026 battery STCs, upfront discount, annual solar value and simple payback for an Australian home battery.
LIFESTYLE & HOMEModel an Australian solar-battery project using the Clean Energy Regulator battery STC tiers effective from 1 May 2026 and your own quote, tariffs and expected solar production.
The calculator estimates certificate quantity from usable battery capacity, then values those certificates at the price you enter. It separately estimates annual value from self-consumed solar and exported energy to avoid presenting the incentive as a guaranteed cash amount.
STCs = tiered eligible kWh × 6.8; annual value = self-used kWh × import rate + exported kWh × feed-in rate − maintenanceResult: Replace the benchmark with the agent offer, subtract the estimated certificate value from the quote, then divide by annual net solar value for simple payback.
Last updated: 13 July 2026
Uses the official May–December 2026 battery STC eligibility rules, factor and taper. The $40 default is the clearing-house benchmark excluding GST; replace it with the value in your registered-agent or installer quote.
The annual value range is ±20% around the entered production and tariff assumptions. This checks capacity only; confirm every eligibility condition and the certificate quantity in the REC Registry STC calculator.
Data checked 13 July 2026. Capacity eligibility, STC tiers and factor are from the Clean Energy Regulator. The $40 benchmark is its clearing-house price excluding GST.