Marlborough is officially New Zealand's sunniest region, averaging around 2,521 sunshine hours a year according to NIWA, which makes Blenheim one of the best places in the country to go solar. We've independently researched and verified the local installers actually based in and servicing the district.
This page highlights the Top 3 solar panel installers in Blenheim, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 3 solar panel installers in Blenheim are 1. Goodyer Electrical and Solar, 2. Sulex Electrical (Sulex Solar), 3. Complete Electrical Marlborough (Complete Electrical & 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 3 and is clearly labelled. It does not influence the rankings below.
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Owner-operators Chris and Simone Goodyer are Master Electricians who launched Goodyer Electrical in 2018 and added Goodyer Solar in 2020, and the business is a SEANZ-accredited member and an Enphase Platinum Installer. Based at 10A Opawa Street in central Blenheim, they hold a 4.9-star Google rating across 61 reviews.
A family-owned Blenheim business run by founder Farid, who spent around 20 years in the electrical trade including solar installation work on Australia's Sunshine Coast before returning to Marlborough. Based on Hutcheson Street in Blenheim Central, the business carries a 4.8-star Google rating from 50 reviews.
Complete Electrical Marlborough Limited was incorporated in 2007 and has traded in the district for close to two decades, with around 8 staff and membership of Master Electricians and the Electrical Contractors Association of NZ (ECANZ). Based in Springlands, Blenheim, they offer solar installation alongside battery storage and general electrical work.
A quick comparison of our Top 3 picks. Select up to 3 businesses above to compare their strengths side by side.
| Solar Panel Installer | Best for |
|---|---|
| Goodyer Electrical and Solar | Enphase micro-inverter systems and full-service electrical plus solar |
| Sulex Electrical (Sulex Solar) | Personalised residential solar installations |
| Complete Electrical Marlborough (Complete Electrical & Solar) | Established electrical contractor adding solar and battery |
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 3. 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, which signals an installer meets industry standards for design, workmanship and consumer protection, and check what panel and inverter brands they use — installers who are accredited Platinum or preferred partners for a specific brand, such as Enphase, typically back their work with stronger manufacturer and workmanship warranties.
From September 2026, electricians doing grid-tied solar work will need the Electrical Workers Registration Board's 'Endorsed Mains Parallel Generation Systems' registration when renewing their licence, so it's worth confirming an installer's electricians hold or are working toward this endorsement. A good local installer will also handle the paperwork for connecting your system to the network and, from July 2026, will be able to advise on the time-of-use pricing and peak-export rebates major retailers are required to offer.
Costs vary with system size and roof complexity, but a typical fully installed residential system in the Marlborough region runs into the low-to-mid five figures. Get a few on-site quotes from local installers to compare pricing for your specific property.
Since October 2025, most residential rooftop solar installations under 40 square metres per roof plane are exempt from needing a building consent under MBIE's updated rules, which has sped up and simplified installs for most Blenheim homeowners. Larger or more complex systems may still need consent, so check with your installer.
Excess power you generate and don't use is exported back to the grid. From July 2026, major electricity retailers are required to offer time-of-use pricing and pay rebates for solar exported during peak times, which can meaningfully improve the payback on a system if you export during those windows.
Yes. Marlborough is officially New Zealand's sunniest region, averaging around 2,521 sunshine hours a year according to NIWA (Earth Sciences New Zealand), with the dry Wairau Valley rain shadow keeping cloud cover low, making it one of the best solar generation regions in the South Island.
A battery lets you store excess daytime generation to use in the evening rather than exporting it, which can be worthwhile depending on your usage patterns, retailer export rates and budget. Ask a local installer to model the payback for a battery against your household's actual electricity use.
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 3 lists.
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