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Solar in Invercargill

Solar panels in Invercargill

As New Zealand's southernmost city, Invercargill has shorter winter days, but solar still pays off for daytime power users.

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Peak sun hours

3.2 /day

Average daily sunlight available for generation.

Indicative 5kW output

~5,900 kWh/yr

Indicative for a north-facing array (PVGIS-based) — varies with roof and shading.

Population

55,000

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What solar costs in Invercargill

A typical 5kW system in Invercargill costs around $10,000–$13,000 installed (EECA benchmark of about $2,000/kW), with most NZ homes seeing a 7–10 year payback. With Invercargill's generation of about 5,900 kWh a year from a 5kW array, here's an indicative estimate — adjust it for your usage:

The more you use while the sun shines, the more you save (grid power costs far more than the export rate).

Indicative annual saving

$1,193 /year

Estimated payback

~8.4 years

~5,850 kWh/yr
~$10,000 to install
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Indicative estimate only — not a quote. Based on EECA's ~$2,000/kW installed benchmark, a regional generation yield (PVGIS-based), grid power at about 33c/kWh and an export buyback of about 12c/kWh (as at June 2026). Your actual figures depend on your roof, shading, usage pattern, retailer rate and the system you choose. Always confirm with a qualified installer.

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