Solar+BatteryStart free
Independent Australian calculator

Power after
sundown

Find the solar and battery size that actually pays back for your home — from one winter bill, with results before any email.

Winter billUpload securely after consent

Your bill is uploaded on the next step after provider consent

Tonight's peak covered6pm–11pm
Grid import cut71%
Your plan · live preview

Three paths.
Numbers you can argue with.

Switch paths, toggle each incentive, watch the payback move. Every assumption is visible and effective-dated.

8 kW + 10 kWhBest payback for evening-heavy homes
Net upfront$11,900Gross $20,180
Payback6.1 yrs
Year-one saving$1,950
10-yr benefit$6,559
Grid cut71%
Break-even · year 7+$23,253
Year 020-year cumulative cash flow · illustrativeYear 20
Battery tonight · illustrative

Winter weekday, Melbourne

0%charged by 3pm

5.4 kWh of evening load served from stored sunshine.

Incentives · conditions apply

Toggle anything you don't want assumed

Solar STCskW × zone × 5 yrs @ $36 · CER
−$3,360
Cheaper Home BatteriesTiered usable kWh × 6.8 · DCCEEW
−$3,520
Solar Homes VICOwner-occupier & income check · Solar Vic
−$1,400
Honest battery maths
9.4 yrs

Incremental payback of the battery alone, versus the same solar without it. Adds ≈ $660/yr.

Your bill
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Illustrative example · Melbourne VIC 3000 · 1,260 kWh winter bill · indicative, not a quote. Your actual plan uses your inputs and may differ.

How it works

Five steps to a plan.
Zero sales calls.

01

Postcode

Solar yield, STC zone, state rebates.

02

Winter bill

Uploaded or typed. Every value has evidence.

03

Your home

Occupancy, heating, hot water, existing solar.

04

What's next

EV, heat pump, induction, pool, backup.

05

Your plan

Three paths. Results before email.

Keep the lights on
with the sun.

Start free · 3 min