Solar Calculators
Plan your battery.
Explore your benefit.
Estimate your battery rebate and a starting storage capacity, then discuss the right system with Power Control.
Battery rebate estimator
Estimate the certificate value for an eligible solar battery installation.
$37 is an editable example, not a live market price. Agent fees and the value offered in your quote may differ.
151 STCs · factor 6.8
Uses 100% of the factor for the first 14 kWh, 60% for the next 14 kWh and 15% for capacity above 28 kWh, capped at 50 kWh. Certificates are rounded down. Eligibility requires a 5–100 kWh nominal system and all program conditions; usable capacity alone does not confirm eligibility.
Enquire about my rebateOfficial CER rules and factorsBattery size planner
Find a starting capacity for shifting daytime solar energy into evening and overnight use.
Use your electricity bill and solar monitoring data. Surplus solar is energy remaining after daytime household use.
To supply approximately 12.0 kWh after solar hours.
Your entered solar surplus could cover this daily charging target.
Planning assumptions: 95% discharge efficiency and 90% round-trip efficiency. This is an energy estimate, not a product recommendation. Seasonal solar output, tariffs, inverter power, backup reserve and future usage need a site assessment.
Enquire about battery sizingEstimates only; not a quote or eligibility approval. Rebate factors checked 30 September 2026. Final benefits and system design are confirmed during assessment.