Estimate what solar could save your New Zealand home. Choose your region and monthly power bill for an instant, indicative estimate — then get your exact numbers from a vetted local installer.
Indicative only — based on New Zealand regional solar output and average power prices. Your actual result depends on your roof, usage and system, confirmed at your free on-site assessment.
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It gives an indicative estimate based on New Zealand regional solar output and average power prices — good for a ballpark. Your exact saving depends on your roof, shading, usage pattern and power plan, which a vetted local installer confirms at a free on-site assessment.
Most NZ homes save around $1,200–$2,500 a year with a well-sized system, depending on region, bill and whether you add a battery. Use the calculator above for a regional estimate.
There is no national solar grant in NZ, so the figures reflect savings from avoiding retail power prices plus feed-in credits — not a rebate. See our NZ solar rebate guide for details.
As a rough guide, match the system to your power bill: smaller bills suit a 3–5 kW system, average homes a 6.6 kW system, and larger homes or those with EVs a 9–10 kW system. The calculator suggests a size from your bill; your installer confirms it.
For most NZ homes with a sunny roof and a bill over $200/month, yes — payback is typically 10–15 years, then largely free power. See our full is-solar-worth-it guide.
Free, honest, about a minute. A vetted local installer confirms the real figures for your roof.
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