LONGi Solar Panels
China
LONGi is the world's largest monocrystalline silicon producer and a top-3 panel manufacturer. Their Hi-MO series panels use proprietary HPBC cell technology for industry-leading efficiency. Known for investing heavily in R&D and manufacturing quality control. A strong mid-to-premium option for New Zealand roofs.
Available Models
Specs are indicative - model availability changes, so confirm current models with your installer.
LONGi Hi-MO 6 445W
HPBC Monocrystalline
LONGi Hi-MO 7 590W
HPBC Monocrystalline
Pros
- +World's largest mono-silicon producer (vertically integrated)
- +Industry-leading efficiency
- +15-year product warranty
- +Heavy R&D investment
- +Excellent degradation rate
Cons
- -Slightly more expensive than Jinko/Trina
- -Chinese-manufactured
- -Some installers prefer other brands for availability
Compare LONGi With
LONGi Solar Panels: FAQs
How much do LONGi solar panels cost in New Zealand?
LONGi solar panels cost $1,700-$2,050 per kW fully installed - around $8,500-$10,250 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 LONGi solar panels any good?
LONGi is the world's largest monocrystalline silicon producer and a top-3 panel manufacturer. Their Hi-MO series panels use proprietary HPBC cell technology for industry-leading efficiency. LONGi is best suited to homeowners wanting top-tier technology at a mid-range price point.
How efficient are LONGi solar panels and how long do they last?
The LONGi Hi-MO 6 445W runs at 22.3% efficiency (HPBC Monocrystalline) and degrades just 0.4% per year, so it still produces strongly after 25 years. LONGi backs it with a 15-year product warranty and a 25-year performance warranty.
What financial help exists for a LONGi 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 LONGi generation at home is worth roughly three times exporting it.
LONGi vs other solar brands - which should I choose?
LONGi sits at the mid-range end of the New Zealand market. It balances top-tier technology with a sensible price. See the head-to-head comparisons below for direct spec-by-spec matchups.