Best Solar Panels NZ: Brands, Tiers and What to Look For (2026)

Best overall value: Jinko Tiger Neo

The Jinko Tiger Neo is the workhorse of the NZ solar market. It uses N-Type TOPCon cell technology, reaches 22 to 24.8% efficiency depending on the model, and comes with a 30-year performance warranty at just 0.4% annual degradation. It’s the panel most installers default to when price and performance both matter, and for good reason. Widely available, competitively priced, and backed by the world’s largest solar manufacturer.

Best premium: REC Alpha Pure-R

REC is a Singapore-headquartered manufacturer with European R&D roots and a reputation for quality that borders on obsessive. The Alpha Pure-R uses heterojunction (HJT) cells, achieves 22.3% efficiency, and has the lowest degradation rate in the market at just 0.25% per year. That translates to roughly 92% output at 25 years. The 25-year product warranty is among the longest available. If you want the best panel money can buy and plan to stay in your home long-term, this is it.

Best for shade and aesthetics: Aiko INFINITE

Aiko’s INFINITE panel uses All Back Contact (ABC) cell technology to achieve a remarkable 24.8% efficiency, with 30% better shade performance than conventional panels. The all-black design looks sharp on any roof. The catch: it’s exclusive to Harrisons Solar in NZ, so you’re locked into one installer. If you have significant shading or care deeply about aesthetics, this panel is worth the conversation.

Some installers named here pay Solar Scout a small fee for each introduction. It does not change what we say about them.

Best budget: JA Solar DeepBlue 4.0

JA Solar is one of the world’s top three panel manufacturers by volume. The DeepBlue 4.0 uses TOPCon cells, achieves 22.8% efficiency, and comes with a 30-year performance warranty and glass-glass construction. It’s a genuine budget option. The catch: its product warranty is 12 years, well short of the 25 we recommend below, so weigh that against the price. Expect an 8 to 11 year payback depending on your location and usage. Very common across NZ installers.

Best for coastal NZ: Trina Vertex S+

If you live near the coast, salt mist corrosion is a real concern. The Trina Vertex S+ uses TOPCon technology in a dual-glass construction with enhanced salt and humidity resistance. It’s the panel of choice for Lightforce Solar, one of NZ’s largest installers. At 22.5 to 23.8% efficiency with a 30-year performance warranty, it’s a strong all-rounder even if you’re not on the coast.

Why Tier 1 matters in NZ

Bank green loans (Westpac at 0%, ANZ, ASB and BNZ at 1%, and Kiwibank’s cashback) don’t name panel brands, but they do set installer rules. ANZ and Kiwibank ask for a SEANZ-member installer. Westpac, ASB and BNZ ask for a qualified installer. Neither rule is about the panel, though installers who meet those bars usually fit Tier 1 panels anyway. Without a green loan you may be paying 7%+ on a personal loan instead. On a $15,000 system that’s about $2,800 in interest over five years at 7%, against nothing on Westpac’s 0% loan or about $230 on a 1% loan over three years.

Current Tier 1 manufacturers

Monocrystalline vs polycrystalline: that debate is over

If you have been reading older guides, you may be weighing monocrystalline solar panels against cheaper polycrystalline ones. In NZ in 2026 there is nothing to weigh: effectively every residential panel sold here is monocrystalline, the single-crystal silicon type with the uniform black appearance. Polycrystalline, the blue speckled type, lost the efficiency race and has all but vanished from the residential market. Every panel in our comparison is monocrystalline, and the four cell technologies below (PERC, TOPCon, HJT and IBC) are all different ways of building a monocrystalline cell. The real decision is between those architectures, not between mono and poly.

TOPCon is the recommended technology for 2026

TOPCon (Tunnel Oxide Passivated Contact) has taken over the market for good reason. It offers meaningfully better efficiency, degradation, and temperature performance than PERC, at only a modest price premium. With 65% market share and climbing, it’s the new standard. Every major NZ installer now offers TOPCon as their default.

Don't buy PERC in 2026

PERC (Passivated Emitter and Rear Cell) was the dominant technology for a decade, but it’s now being phased out. Manufacturing lines are converting to TOPCon, and new PERC panels are increasingly hard to find. If an installer offers you PERC panels, ask why, and ask for the price difference. In most cases, TOPCon is a better investment even at a slightly higher price.

Half-cut cells are now standard

Modern panels use half-cut cells (each silicon wafer cut in two) rather than full-size cells. This reduces resistive losses, improves shade tolerance, and increases reliability. If you see a panel advertised with full-size cells, it’s likely old stock. Avoid it.

Bifacial panels: limited benefit on rooftops

Bifacial panels can absorb light from both sides, generating 2 to 5% more energy on ground-mounted systems with reflective surfaces. On rooftops, the rear side gets almost no reflected light, so the bifacial benefit is marginal. However, bifacial panels are typically dual-glass construction, which is genuinely valuable in NZ for UV resistance and structural durability. Buy bifacial for the glass, not the extra generation.

N-type vs P-type: N-type wins

TOPCon, HJT, and IBC are all “N-type” silicon. PERC is “P-type.” N-type wins on efficiency, degradation, and temperature performance. PERC is being phased out, so the price difference is now small, and where there is a premium it pays back over several years rather than one or two. Every panel on our recommended list is N-type.

UV exposure: 40% higher than the Northern Hemisphere

NZ sits under the thinnest part of the ozone layer, which means UV radiation is significantly higher than equivalent latitudes in Europe or North America. Over 25+ years, this accelerates degradation in lower-quality panels. Dual-glass construction (where the rear of the panel uses glass instead of a polymer backsheet) is recommended for NZ conditions. Most premium and mid-range panels now offer this as standard.

Coastal salt mist

If you live within a few kilometres of the coast, salt mist corrosion can damage panel frames and connections over time. Look for IEC 61701 salt mist certification, Level 6 minimum for coastal NZ properties. Stainless steel mounting hardware is also worth specifying. The Trina Vertex S+ and REC Alpha are both strong choices for coastal installs.

Wind loads

NZ gets serious wind. Rooftop arrays must be installed to AS/NZS 5033, which requires the panels, rails and fixings to withstand the wind loads for your site calculated under AS/NZS 1170.2. Most quality panels are rated to 5400 Pa front and 2400 Pa rear. Ask your installer to confirm the design is checked for your wind zone, especially on roof edges and corners. This is one area where cheaper installations sometimes cut corners.

Green loan eligibility

Green loan eligibility comes down to your installer, not your panel brand. ANZ and Kiwibank require a SEANZ-member installer. Westpac, ASB and BNZ ask for a qualified installer. No bank sets a panel-tier rule. Here’s the landscape as at August 2026:

New electrician endorsement for solar

Under Electrical Workers Registration Board rules, which SEANZ helped develop, electricians who install grid-connected solar or batteries must hold a Mains Parallel Generation Systems endorsement. It is required from each electrician’s first licence renewal on or after 1 September 2026. As always, the electrician must give you a Certificate of Compliance for the work. This is good news for homeowners: it raises the bar for installation quality. Make sure your chosen installer meets these requirements, especially if you’re applying for a green loan.

Panel-only pricing (per watt)

Fully installed system pricing

Is premium worth it? The maths

Let’s compare REC Alpha Pure-R (premium, 0.25% degradation) against Jinko Tiger Neo (mid-range, 0.4% degradation) over 25 years on a 6.6 kW system.

The REC panel produces roughly 2% more lifetime energy thanks to lower degradation. On a 6.6 kW system generating about 9,000 kWh per year, that’s an extra 4,000 kWh or so over 25 years. At current blended electricity values (mix of self-consumption and export), that extra energy is worth $600 to $1,000.

The premium panels cost $2,000 to $4,000 more upfront. So in pure financial terms, the premium doesn’t pay for itself. But if you value the longer product warranty, lower environmental impact from slower degradation, or simply want the best available, it’s a reasonable choice. Not a clear financial win, but not unreasonable either.

Mid-range TOPCon panels are the sweet spot for most NZ homeowners. The premium over budget panels pays for itself easily, but the jump from mid-range to premium is more about preference than payback.

Exclusive partnerships

Some panels are locked to a single company. Aiko’s INFINITE range is sold in NZ through one large national installer under an exclusive partnership, so wanting that specific panel makes the installer decision for you, and vice versa.

One-brand standardisation

Many of the bigger operators standardise on a single pairing, such as Trina Vertex S+ panels with an integrated Sigenergy inverter and battery system, to streamline design, stock and warranty service. You get a well-drilled install; you give up brand choice.

Multi-brand installers

Others quote across several brands, commonly Jinko, Winaico, Trina and DAS Solar, giving customers more choice across price tiers. This flexibility can be an advantage if you have specific panel preferences.

Regional patterns

Hyundai panels have a strong following in the southern South Island, with several Otago and Southland installers standardising on the South Korean brand.

Wholesale supply

Much of the equipment smaller installers fit arrives through wholesale distributors stocking Jinko and Hyundai, so the same panels turn up on quotes from many different installers.

1. Chasing highest wattage instead of best value

A 500W panel sounds impressive, but wattage alone tells you very little. A larger panel produces more watts because it’s physically bigger, not necessarily because it’s better. Efficiency (watts per square metre) is what matters. Per square metre of roof, a 22% efficient panel produces about 220W and a 19% panel about 190W, so the same roof space gets roughly 15% more power from the more efficient panel. If roof space is tight, see where panels would go on your own roof with our 3D solar calculator.

2. Ignoring warranty terms

There are two warranties that matter: product warranty (covers manufacturing defects) and performance warranty (guarantees minimum output over time). Some budget panels offer just 12 years of product warranty despite a 30-year performance warranty. If the panel physically fails in year 15, you’re on your own. Look for at least 25 years on both. Both warranty types can also be voided by improper cleaning. Our solar panel maintenance guide covers what NZ panels actually need and what voids the cover.

3. Not checking your installer meets your bank’s rules

This is the most expensive mistake on this list. A quote from an installer your bank won’t accept can lock you out of green loan rates. On a $15,000 system, a 7% personal loan costs about $2,800 in interest over five years. A green loan costs between nothing and a few hundred dollars. If your mortgage is with ANZ or Kiwibank, check your installer is a SEANZ member before signing.

4. Oversizing instead of right-sizing

Bigger is not always better. NZ buy-back rates are low: you export at about 8 to 16c/kWh off-peak but purchase at 30 to 45c/kWh. Every kWh you export instead of using is worth roughly a quarter to a half of what you’d save by using it directly. Right-size your system for your actual daytime usage, or invest the difference in the best solar batteries in NZ to increase self-consumption. Our system-sizing guide walks through the maths from your annual kWh. And if you’re planning to add an EV in the next few years, factor that into the sizing maths. Our solar + EV charging guide walks through how to size for both loads at once.

5. Relying on solar calculators alone

Online calculators (including ours) are useful for ballpark estimates, but they can’t account for your specific roof condition, shading patterns, electrical panel capacity, or local network constraints. Get at least three professional quotes with site assessments before committing. A 15-minute roof inspection reveals things no satellite image can.

6. Dismissing non-north-facing roofs

North-facing is ideal in NZ, but east/west splits can actually save you more money. Why? An east/west split generates power across a longer part of the day, matching more of your morning and evening usage. That means higher self-consumption and less wasted export. For households with morning and evening usage peaks, an east/west split can outperform north-only in dollar terms.

7. DIY installation

We see this question regularly: “Can I install panels myself and save on labour?” The short answer is no. In NZ, all electrical work must be done by a registered electrician. From 1 September 2026, grid-connected solar work also needs an electrician holding the new Mains Parallel Generation Systems endorsement. DIY installation voids your product warranty, voids your home insurance coverage, disqualifies you from green loan rates, and is illegal for the electrical connection.

What is the best solar panel brand in NZ?

For most homeowners, Jinko Tiger Neo offers the best balance of efficiency, warranty, and price. For premium builds, REC Alpha Pure-R has the lowest degradation rate in the market. For shade-heavy properties, Aiko INFINITE (via Harrisons Solar) excels with 30% better shade performance than conventional panels.

Are Tier 1 solar panels worth it?

Yes, as a filter. Tier 1 is a bankability rating for the manufacturer, and it’s a sensible way to cut warranty risk. Banks don’t require it: their green loans (0 to 1% interest) set installer rules instead, and at ANZ and Kiwibank that means a SEANZ member. Without a green loan you may be on a personal loan at 7%+ interest. On a $15,000 system that’s about $2,800 in interest over five years at 7%, against nothing on Westpac’s 0% loan or about $230 on a 1% loan over three years.

Are monocrystalline solar panels the best type?

Yes, and in NZ they are now effectively the only type. Monocrystalline panels, cut from a single silicon crystal, won the efficiency race against polycrystalline years ago, and every residential panel in our comparison is monocrystalline. The useful question in 2026 is which monocrystalline cell architecture to buy: TOPCon is the current standard at around 22% efficiency, HJT costs more for lower degradation and better heat performance, back-contact designs are the most efficient, and PERC is on the way out. The section on panel technology above compares all four.

Should I buy TOPCon or PERC panels in 2026?

TOPCon. PERC is being phased out of production globally. TOPCon offers better efficiency (22% vs 21%), lower degradation (0.4% vs 0.5%), and better temperature performance. Any price premium is now small and pays back over several years through higher energy production. Every panel on our recommended list is TOPCon or better.

How much do premium solar panels cost in NZ?

Fully installed, a 6.6 kW system with mid-range panels (Jinko, Trina) costs $13,000 to $16,000. Premium panels (REC, Q CELLS) add $2,000 to $4,000 to that total. The extra lifetime energy production from premium panels is worth $600 to $1,000, so it’s a personal preference rather than a clear financial win.

Will solar panel prices go up in 2026?

Not by much so far. Panel prices hit historic lows in 2024 and have moved within a narrow range since, as China tries to cut excess production capacity. Polysilicon prices fell in early 2026, though producers reportedly agreed output caps in September that could push prices up later. Panels are also a small share of a home system’s cost, so price swings change the total less than you might expect.