Calculators

Perform the calculation you need

Your business

Type of site

Daytime operations capture the most solar directly, so they pay back fastest.

Average monthly electricity bill$4,000

Include energy, demand and supply charges — the whole bill.

Peak demand charge share of the bill25%

On many commercial tariffs this is the single largest line. Check your bill.

Usable roof area600 m²

Clear area only — excluding plant, skylights and walkways.

Your energy rate (c/kWh)28c

Options

Add storageShaves peak demand

Show finance viewRepayment vs saving

Recommended system

0kW

Sized to your daytime load and the roof area available.

Annual saving

energy + demand

Payback

years

10-year return

on net cost

Indicative installed price$0

STC discount at point of sale$0

Net capital cost$0

Annual generation0 kWh

Used on site during trading hours0 kWh

Energy charge saved$0

Demand charge saved$0

CO₂ avoided0 t/yr

Roof area used0 m²

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Matching equipment from our confirmed range

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Step 2 · Free full quote

Get a proper quote from our team

Send your estimate and a few details — we prepare a real, itemised quote for your property. Free, no obligation.

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.