Calculators

Perform the calculation you need

Your system

Solar system size6.6 kW

Household usage per year6,000 kWh

A quarterly bill around $650 is roughly 6,000–7,000 kWh a year.

Share of generation used at home35%

Without a battery most households land between 25% and 40%.

Options

Add a 13.5kWh batteryLifts self-consumption

Daytime EV chargingSoaks up exports

Plans compared

Indicative August 2026 NSW retail offers. Retailers change these often — always check the current Basic Plan Information Document before switching.

Best annual outcome

$0/ year net bill

Retail plan shape	Import	Feed-in	Net cost / yr

Annual generation0 kWh

Used at home (worth the import rate)0 kWh

Exported (worth the feed-in rate)0 kWh

Still bought from the grid0 kWh

Key point

Size a system that exports less →Call 0421 458 217

Step 2 · Free full quote

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Estimates only, for planning — your actual result depends on your tariff, roof, usage and the products chosen. Rebate and tariff figures are current as of August 2026: the federal Cheaper Home Batteries Program (tiered per-kWh via STCs), the NSW PDRS battery incentive and the STC discount on new solar all step down on a set schedule, and we confirm the exact value at quote. Verify current values with the Clean Energy Regulator and NSW Government.