Nelson's sunny, grid-edge location makes home battery storage a genuinely popular add-on to solar, whether it's for backup power during outages or making the most of self-generated electricity. We've independently verified the installers below against their Google Business Profiles, registered trade credentials and real completed battery projects in the Nelson Tasman region.
This page highlights the Top 5 battery storage installers in Nelson, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 5 battery storage installers in Nelson are 1. Think Solar Nelson, 2. E-Solar (Solar Electric Technology), 3. GRE Services Ltd (Glenn Roberts Electrical), 4. Lightforce Solar - Nelson Tasman, 5. Powermac Electrical. 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.
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Think Solar Nelson (formerly Nelson Solar) is a locally based, in-house solar and battery team at 443a Nayland Road, Stoke, and a Premium Tesla Certified Installer for Powerwall and Powerwall expansion packs. They were runner-up for Best Large Business at the SEANZ 2025 Awards and hold a 5.0-star Google rating from 35 independent reviews.
E-Solar has installed solar and battery systems across the Nelson, Tasman, Marlborough and West Coast region for 14 years, with over 3,000 completed installs. Its team specialises exclusively in solar and alternative energy, and it holds a 5.0-star Google rating from 34 independent reviews.
GRE Services is a Nelson-based registered electrical company offering full-package solar and battery installations, from design and supply through to installation and training. It is a SEANZ member and has publicly documented completed battery/solar projects, including the Kaiteriteri Beach House and Fossil Creek Farm Trust installs, and holds a 4.4-star Google rating from 27 independent reviews.
Lightforce Solar has a dedicated Nelson office at 106A Tahunanui Drive and over a decade of trading history in New Zealand's solar industry. It is SEANZ-accredited and installs Tesla Powerwall and Sigenergy battery systems, and holds a 4.7-star Google rating from 9 independent reviews.
Powermac Electrical is a family-owned, Māpua-based registered electrical company serving Nelson and Tasman, run by owner Peter Macale with 18 years' experience. It is a Master Electricians member backed by the $20,000 Master Electricians Workmanship Guarantee, and its solar service explicitly designs in battery storage where it suits the household.
A quick comparison of our Top 5 picks. Select up to 3 businesses above to compare their strengths side by side.
| Battery Storage Installer | Best for |
|---|---|
| Think Solar Nelson | Tesla Powerwall installations |
| E-Solar (Solar Electric Technology) | Long track record across the wider Nelson Tasman region |
| GRE Services Ltd (Glenn Roberts Electrical) | Electrician-led solar-and-battery packages |
| Lightforce Solar - Nelson Tasman | Sigenergy and Tesla battery pairings with solar |
| Powermac Electrical | Smaller residential jobs with a named local electrician |
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 battery storage 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.
Get your system sized to your actual household usage, not just your solar array. A good Nelson installer will ask about your evening and overnight power draw, whether you want whole-home or partial backup, and how much of the year you're realistically off imported power before recommending a battery size. Check they hold current EWRB electrical registration and, ideally, SEANZ membership, which means they work to a code of conduct covering technical standards and business practice.
Not every battery installation supports backup power during an outage by default — ask specifically whether the system includes an automatic transfer switch or backup gateway, and what happens to your solar and battery during a grid outage. Also compare warranty terms carefully: battery manufacturer warranties (typically around 10 years) are separate from the installer's own workmanship warranty, so get both in writing before you commit.
A typical residential battery in Nelson, such as a Tesla Powerwall or similar 10-13kWh system, generally costs in the range of $12,000-$18,000 fully installed, depending on the brand, capacity and whether it's paired with new solar panels or retrofitted to an existing system. Get a personalised quote from a local installer, as pricing depends on your specific setup.
No — a battery can be installed on its own and charged from the grid, typically to take advantage of off-peak electricity rates or to provide backup power. That said, most Nelson households pair a battery with solar panels, since it lets you store excess self-generated power for use in the evening rather than exporting it to the grid for a lower return.
Only if the system is specifically configured for backup power. Some battery installations are grid-tied only and will shut down during a power cut for safety reasons, while others include a backup gateway or automatic transfer switch that keeps essential circuits (or the whole home) running. Confirm this explicitly with your installer before installation, as it's not automatic with every setup.
Most home batteries carry a manufacturer warranty of around 10 years, covering the battery's capacity retention and core components, separate from the installer's own workmanship warranty on the installation itself. Ask for both warranties in writing, and check what happens if the installer stops trading.
It depends on your household's usage pattern, existing solar setup and how much you value backup power during outages. Nelson's high sunshine hours make solar-paired batteries more effective at capturing excess daytime generation than in cloudier regions, but the payback period varies by household — a local installer can model this against your actual power bills before you commit.
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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