How Much Does Solar Panel Installation Cost in NZ? (2026)
Typical cost in NZ
$13,000
A install solar panels in New Zealand typically costs around $13,000, ranging from $7,000 for a budget job to $35,000+ at the premium end. The figures below break down what each level gets you, what drives the price, and how it varies by region.
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Check a builderInstall Solar Panels cost by level
Budget
$7,000 – $10,000
Entry grid-tied system around 3-4kW on a simple single-storey roof, standard panels and string inverter.
Mid-range
$10,000 – $18,000
5-7kW grid-tied system for a typical family home, quality panels, hybrid (battery-ready) inverter at the upper end.
Premium
$20,000 – $35,000
8-10kW+ system with battery storage ($5,000-$15,000 of the total), or complex multi-pitch and two-storey installs.
What changes the price
| Factor | Impact | Why |
|---|---|---|
| System size (kW) | Linear, ~$1,700-2,300/kW | More panels and a bigger inverter scale the price almost directly. Oversizing beyond your usage stretches payback. |
| Battery storage | +$5k-15k | Batteries roughly double a mid-size system's price. Whether that stacks up depends on your buy-back rate and night usage. |
| Roof type and pitch | +$500-3,000 | Tile and steeply pitched roofs take longer to mount on than corrugated steel. Two-storey adds access costs. |
| Inverter type | +$1k-4k | Microinverters and hybrid inverters cost more than a basic string inverter but handle shading and batteries better. |
| Switchboard condition | +$500-2,500 | Older switchboards may need upgrading before the system can be connected and certified. |
Install Solar Panels cost by region
Indicative cost based on the typical figure, adjusted for regional labour and material differences.
Auckland
$14,000
Wellington
$14,000
Christchurch
$13,000
Hamilton
$13,000
Tauranga
$13,000
Regional NZ
$13,000
What's usually included, and what isn't
Usually included
- Panels, inverter, mounting rails and wiring
- Installation by an electrical worker, with Certificate of Compliance
- Grid connection paperwork with your lines company
- Monitoring app setup
- Commissioning and handover
Usually extra
- Battery storage (unless quoted)
- Switchboard upgrades
- Roof repairs needed before mounting
- Engineering review for large arrays or high wind zones
- Tree trimming for shading
Typical timeline
1–3 days
Building consent
Not usually required
Since 2025, roof-mounted solar arrays under 40m² in wind zones up to high are exempt from building consent. Larger arrays or higher wind zones need a Chartered Professional Engineer to design or review the mounting. Electrical work must be certified, and district plan rules can still apply on heritage buildings.
Read the full consent answerA install solar panels is one of the biggest cheques you'll write.
Before you hand over a deposit, it's worth knowing the company is real, still trading, and what's on the public record. We pull the Companies Office, the NZ Gazette insolvency notices, the Licensed Building Practitioners register and 30+ other official sources into one plain check. Takes about a minute.
Questions to ask before you sign
- What exact panels and inverter, and what are the product and output warranties on each?
- How was the system sized: did you look at my actual power bills?
- Is my array under 40m² and within the wind zone limits for the consent exemption?
- Who applies to the lines company for grid connection, and how long does that take?
- What does the roof penetration detail look like, and who covers leaks at the mounts?
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Frequently asked questions
- How much does a 5kW solar system cost in NZ?
- A 5kW grid-tied system typically costs $9,000 to $13,000 installed, with the wider 5-7kW bracket running $10,000 to $18,000 depending on panels, inverter and roof complexity. Adding a battery puts another $5,000 to $15,000 on top.
- Do solar panels need building consent in NZ?
- Usually not. A 2025 exemption order covers roof-mounted arrays under 40m² in wind zones up to high. Bigger arrays, very high wind zones, or structural questions bring in a Chartered Professional Engineer, and heritage or district plan rules can still apply.
- Is a solar battery worth adding?
- It depends on how much power you use after dark and what your retailer pays for exported solar. Buy-back rates around 7 to 12 cents per kWh mean self-consuming your own generation is worth more than exporting it, which is the case for batteries. Run the numbers on your own bills before committing.
Install Solar Panels costs by city
Related cost guides
Sources: EECA solar costs and savings guidance; My Solar Quotes residential price guide 2025; Canstar NZ solar buy-back plan comparison; Building (Exempt Roof-mounted Solar Panel Arrays and Building Work) Order 2025. Figures are 2026 estimates for guidance only and exclude GST unless stated, so always get written quotes for your specific project. Last updated 2026-06.