Nelson is one of New Zealand's sunniest cities, and that makes choosing the right solar installer worth getting right. We independently researched the solar companies genuinely operating in Nelson and Tasman, verifying registration, accreditation and real customer reviews, so you can compare with confidence.
This page highlights the Top 5 solar panel installers in Nelson, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 5 solar panel installers in Nelson are 1. Think Solar Nelson, 2. E-Solar (Solar Electric Technology Ltd), 3. Horizon Solar & Electrical, 4. Lightforce Solar - Nelson Tasman, 5. NZ Solar. Below we explain why each made the list, compare them at a glance, and share how to choose.
This paid placement sits above the editorial Top 5 and is clearly labelled. It does not influence the rankings below.
New businesses: 50% off your first 6 monthsFeatured placement above does not influence these rankings.
Part of Think Solar Group, a network of locally-owned South Island solar businesses that has grown from one branch in 2016 to six, including a dedicated Nelson branch on Nayland Road, Stoke. It holds a genuine Google Business Profile with a perfect 5.0 rating across 34 reviews and is a SEANZ member.
A family-run, NZ-registered company (NZBN 9429031874458) based at Redwood Road, Appleby, that has serviced Nelson, Tasman, Marlborough and the West Coast for over a decade. It is a SEANZ member and has won SEANZ industry awards for grid-connected and off-grid PV projects.
A locally-owned and growing solar and electrical company based at Douglas Road, Wakatu, Nelson, offering grid-connected and off-grid PV, battery storage, home energy management and EV charging. It is a SEANZ member with a genuine, well-reviewed Google Business Profile.
A national installer (SEANZ member, reportedly responsible for around 20% of NZ's solar installs) with a genuine dedicated local hub at Tahunanui Drive, Nelson, distinct from its other regional hubs, giving it a real local team backed by a much larger national support and supply network.
A locally-owned and operated business based at Lower Queen Street, Richmond, that has serviced the Nelson-Tasman region for close to 20 years. Its installers are qualified electricians and plumbers with recognised solar accreditation, covering system design through to installation.
A quick comparison of our Top 5 picks. Select up to 3 businesses above to compare their strengths side by side.
| Solar Panel Installer | Best for |
|---|---|
| Think Solar Nelson | Locally-owned team with regional backup |
| E-Solar (Solar Electric Technology Ltd) | Established local specialist with award-winning installs |
| Horizon Solar & Electrical | Combined solar, battery and EV charging installs |
| Lightforce Solar - Nelson Tasman | National-scale backing with a dedicated local hub |
| NZ Solar | Long-standing local operator with in-house trade qualifications |
Independent, editorial, and reviewed regularly.
TopChoice rankings are editorially curated by our New Zealand team and reviewed periodically. We don't host our own reviews. Our shortlists draw on public reputation signals from Google and other platforms, alongside our own research into each solar panel installer. We weigh up a combination of:
We don't accept payment in exchange for a place in the Top 5. Featured placements are separate and always clearly labelled. Rankings may change over time as businesses evolve.
Look for SEANZ (Sustainable Energy Association of New Zealand) accreditation as a baseline check on any installer, and ask what panel and inverter brands they use and what warranty backs both the equipment and the installation workmanship. Since October 2025, most residential rooftop solar installs under 40m² per roof no longer need a building consent, which has sped up installation timelines, but a reputable installer will still handle any consent or paperwork your specific property needs.
From September 2026, electricians carrying out grid-tied solar work are being phased into requiring Endorsed Mains Parallel Generation Systems registration with the Electrical Workers Registration Board as their licences come up for renewal, so it's worth asking who on the installation team holds this endorsement. A good installer will also handle your retailer paperwork and grid connection application for you, and from July 2026 major electricity retailers must offer time-of-use pricing and pay rebates for solar exported at peak times, so ask how your installer sizes your system to make the most of that.
Costs vary with system size, roof type and equipment brand, so it's worth getting quotes from a couple of the installers above and comparing what's actually included (racking, inverter warranty, monitoring, and any battery add-ons) rather than comparing headline prices alone.
Since October 2025, most residential rooftop solar installations under 40m² per roof are exempt from needing a building consent under MBIE's rules. Larger systems, unusual roof structures, or heritage properties may still need consent, so check with your installer or the Nelson City Council before you commit.
Any electricity your system generates and you don't use on-site is exported back to the grid. From July 2026, major electricity retailers are required to offer time-of-use pricing and pay rebates for power exported during peak demand times, which can meaningfully improve the payback on a system, especially if it's sized and oriented well.
Yes. Nelson consistently records some of the highest sunshine totals in New Zealand, with NIWA's long-term data putting the region's annual average at around 2,400-2,500 sunshine hours a year, among the sunniest anywhere in the country, which makes it a strong location for solar generation.
A battery lets you store daytime generation to use in the evening rather than exporting it, which can be worthwhile if you use a lot of power outside daylight hours or want backup during outages. It adds to the upfront cost though, so it's worth asking your installer to run the numbers on payback for your specific usage before deciding.
Editorial disclosure: TopChoice is an independent editorial platform. Some pages may include clearly labelled featured placements for additional visibility. Featured placements do not influence rankings within our Top 5 lists.
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