Solar Calculator
See if solar pays back for you.
Enter your address and we'll estimate system size, savings and payback - using real New Zealand sunlight data where available.
Enter your address above to see your personalised estimate.
Usable roof area
– m²
Sunlight hours
– hrs
max usable, per year
20-year projected savings
$– – $–
cumulative bill savings (flat to +3%/yr power prices)
Your estimate
Your system
– kW
Annual generation
– kWh
estimated per year
Annual savings
$–
on your power bill
Payback period
– yrs
to recover the cost
Indicative system cost
$–
20-year net benefit
$–
What changes the real price
This estimate uses one price per kW. On a real quote, these move the number - tell us what you know and we'll check the rest at your review.
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This is an estimate - let SGS run a precise, independent analysis.
Free and obligation-free. We'll verify roof, shading, tariff and ROI with your actual usage.
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