Dunedin's exposure to grid outages and rising power prices has pushed more Otago homeowners toward battery storage, whether paired with solar or added to an existing system. We've independently researched the installers actually doing this work locally, verifying registration, accreditation and genuine customer reviews before ranking them.
This page highlights the Top 5 battery storage installers in Dunedin, based on independent research into reputation, accreditation, service quality and overall reliability.
The top 5 battery storage installers in Dunedin are 1. Think Solar Dunedin, 2. Aotea Electric Southern, 3. Future Energy Dunedin, 4. Limitless Electrical and Energy Solutions (LEES), 5. Solar Guys NZ. 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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Formerly Dunedin Solar, this locally owned South Dunedin business is one of only two NZ Premium Tesla Certified Installers and a SEANZ member, with a 10-year workmanship warranty on installs. Its Google Business Profile shows a 5.0 rating from 90 reviews, the strongest review record of any installer serving the city.
Aotea Electric Southern has operated in Ōtepoti Dunedin for around 50 years and is one of the city's largest electrical contractors, with a dedicated solar, EV charging and battery storage service line delivered by its own registered electricians. Its Google Business Profile is verified OPERATIONAL with a 4.9 rating from 73 reviews.
Future Energy runs a dedicated Dunedin branch designing and installing solar, battery storage, heat pumps and EV charging, and is a listed SEANZ member and certified Tesla Powerwall installer. Its Google Business Profile is verified OPERATIONAL at a genuine Bradford, Dunedin address with a 4.8 rating from 27 reviews.
LEES is a Dunedin-based electrical contractor founded by a registered/master electrician with 15+ years' experience, offering solar and battery storage backed by a $20,000 workmanship guarantee. Its Google Business Profile is verified OPERATIONAL at a genuine Bradford, Dunedin address with a 4.9 rating from 62 reviews.
Solar Guys NZ, trading through registered local electrical firm Victor Brown Electrical, installs hybrid solar systems with battery storage from its Caversham, Dunedin base. Its Google Business Profile is verified OPERATIONAL with a 5.0 rating, though its review count is small compared with the other ranked installers.
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 Dunedin | Tesla Powerwall installs with the deepest local review history |
| Aotea Electric Southern | Homeowners wanting an established, full-service electrical contractor |
| Future Energy Dunedin | Combined solar, battery, heat pump and EV charging projects |
| Limitless Electrical and Energy Solutions (LEES) | Locally founded electrical contractor with a strong workmanship guarantee |
| Solar Guys NZ | Smaller local jobs with fast turnaround |
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.
Battery sizing should be based on your actual household usage, not a generic package. A good installer will review your power bills and usage patterns before recommending a battery size, and will hold current EWRB (Electrical Workers Registration Board) registration, since connecting a battery to the grid is licensed electrical work. SEANZ (Sustainable Energy Association of New Zealand) membership is a further positive signal that an installer follows recognised industry standards.
Not every battery system provides backup power during an outage by default, so confirm whether the installer's proposed setup supports whole-home or partial backup before you commit. Check the manufacturer's warranty terms (typically 10 years on the battery itself) alongside the installer's own workmanship warranty, and get this in writing before signing off on a quote.
Costs vary with battery size and brand, but a single home battery (around 10-13.5kWh) typically installed in New Zealand runs from roughly $10,000 to $20,000+ including installation, before any available rebates. Get a site-specific quote, as roof access, switchboard work and backup-power configuration all affect the final price.
No. A battery can be retrofitted to store cheap off-peak grid power or added to an existing solar system, though pairing it with solar generally gives the fastest payback since you're storing your own generated power rather than buying it.
Not automatically. Standard grid-tied battery installs are designed to shift and store energy, not necessarily to keep your home running when the grid goes down. Whole-home or partial backup during an outage requires specific equipment and wiring (such as an automatic transfer switch), so confirm with your installer whether backup power is included in your quoted system.
Most reputable battery brands (such as Tesla Powerwall) carry a manufacturer warranty of around 10 years, usually covering a set number of charge cycles or a minimum retained capacity. On top of this, installers typically offer their own workmanship warranty on the installation itself, separate from the battery manufacturer's cover.
It depends on your power usage, existing solar (if any), and how much you value backup resilience during outages. Batteries paired with solar tend to have the best financial payback, while battery-only installs are often chosen more for outage protection and shifting usage to cheaper off-peak rates than for pure cost savings.
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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