Trina Solar Panels
China
Trina Solar is a Tier-1 manufacturer and one of the most popular choices for residential installations in New Zealand. Their Vertex S+ series offers a strong balance of efficiency, warranty, and price. Established in 1997, Trina has one of the longest track records in the industry.
Available Models
Specs are indicative - model availability changes, so confirm current models with your installer.
Trina Vertex S+ 440W
N-type TOPCon Monocrystalline
Pros
- +25+ year track record
- +Excellent price-to-performance ratio
- +15-year product warranty
- +Tier-1 bankability rating
- +Widely available in NZ
Cons
- -Chinese-manufactured
- -Not the absolute highest efficiency
- -Brand less differentiated vs Jinko/LONGi
Compare Trina Solar With
Trina Solar Panels: FAQs
How much do Trina solar panels cost in New Zealand?
Trina solar panels cost $1,600-$1,950 per kW fully installed - around $8,000-$9,750 for a typical 5kW system, GST inclusive (indicative June 2026). There is no rebate to subtract in New Zealand, so the quoted price is the full story.
Are Trina solar panels any good?
Trina Solar is a Tier-1 manufacturer and one of the most popular choices for residential installations in New Zealand. Their Vertex S+ series offers a strong balance of efficiency, warranty, and price. Trina Solar is best suited to those wanting a proven, bankable brand with strong warranty at a competitive price.
How efficient are Trina solar panels and how long do they last?
The Trina Vertex S+ 440W runs at 22.1% efficiency (N-type TOPCon Monocrystalline) and degrades just 0.4% per year, so it still produces strongly after 25 years. Trina Solar backs it with a 15-year product warranty and a 25-year performance warranty.
What financial help exists for a Trina Solar system in NZ?
New Zealand has no government solar rebate and no mandated feed-in tariff. What does exist: bank green home loan top-ups (ANZ, ASB and BNZ at about 1% p.a. fixed for 3 years, up to $80,000; Westpac at 0% up to $50,000 over 5 years) and retailer buyback plans paying 7-12c/kWh for exported power. With grid power around 35c/kWh, using your Trina generation at home is worth roughly three times exporting it.
Trina Solar vs other solar brands - which should I choose?
Trina Solar sits at the budget end of the New Zealand market. It is the value pick for homeowners who want proven reliability at the lowest price per kW. See the head-to-head comparisons below for direct spec-by-spec matchups.