Solar Battery Adelaide: 7 Best Battery Installers for 2026

The best solar battery Adelaide households can buy in November 2026 depends less on the brand than on the installer, and the discount is federal: about $3,460 to $3,640 off a 13.5 kWh battery installed before 31 December 2026. South Australia’s own Home Battery Scheme is closed. This guide compares seven Adelaide battery installers: MLEC Solar, Best Solar & Batteries, Solar Power Direct, SunEnergy, DSW Energy, NRG Solar and 1KOMMA5°.

This is independent desk research using company websites, Google Maps ratings, our own directory data and government program pages. We did not contact any company, request quotes or accept payment for inclusion. You will learn who to call first for your situation, each company’s real weaknesses, how the discounts and SA Power Networks rules apply, and what to check before paying a deposit.

Key facts

• As at November 2026, the Cheaper Home Batteries Program gives a 13.5 kWh battery installed in South Australia before 31 December 2026 about 91 certificates, worth roughly $3,460 to $3,640 at $38 to $40 each.
• The federal battery factor falls from 6.8 to 5.7 certificates per usable kWh on 1 January 2027, which cuts the discount on a 13.5 kWh battery by about $570 to $600.
• The South Australian Home Battery Scheme is closed, and the Department for Energy and Mining says it accepts no new applications.
• SolarQuotes reported in June 2026 that the Retailer Energy Productivity Scheme (REPS) virtual power plant incentive was worth up to $2,050 in South Australia and limited to priority group households for the rest of 2026.
• Google Maps listed Best Solar & Batteries at 4.9 stars from 852 reviews and SunEnergy at 4.6 stars from 561 reviews for Adelaide in November 2026.
• Solar Cobber’s battery cost guide puts a 13.5 kWh battery at roughly $11,000 to $15,000 installed before discounts, which is about $7,360 to $11,540 after the federal discount.

Quick winners

• Best for Battery Specialists: MLEC Solar
• Best Review Volume: Best Solar & Batteries
• Best for Customer Service: Solar Power Direct
• Best for Finance and Retailer Bundles: SunEnergy
• Best Rated on Google: DSW Energy
• Best for Repairs and Retrofits: NRG Solar
• Best for VPP and Smart Tariffs: 1KOMMA5°

Comparison table

This table compares the seven installers as at November 2026. Ratings are Google Maps figures for the Adelaide listing unless noted, and warranty terms are what each company publishes.

How the battery incentives work in Adelaide (November 2026)

Federal discount. The Cheaper Home Batteries Program is the main battery discount in South Australia and has no income test. A battery earns small-scale technology certificates (STCs), and the installer normally takes their value off the invoice. For installs from 1 May to 31 December 2026 the factor is 6.8 certificates per usable kWh, applied in full to the first 14 kWh. A 13.5 kWh battery earns 91 certificates, and the factor drops to 5.7 on 1 January 2027. Batteries must be 5 kWh to 100 kWh, paired with solar and installed by an accredited installer. Source: DCCEEW.

State schemes. The SA Home Battery Scheme closed in 2022, so there is no state upfront battery subsidy. The only state-linked extra is the REPS virtual power plant incentive, and for the rest of 2026 it is only open to priority group households, such as concession card holders. A virtual power plant (VPP) is a network of home batteries that an operator controls together to support the grid. Our South Australian solar rebate guide has the working, and our VPP explainer covers what you give up in return.

SA Power Networks flexible exports. Since 1 July 2023 every new exporting solar system must accept flexible exports, with up to 10 kW per phase when the network allows, or a fixed 1.5 kW per phase if you opt out. SA Power Networks says adding only a battery to existing solar does not change your export limit. Source: SA Power Networks.

Best for Battery Specialists: MLEC Solar

MLEC Solar is an electrician-founded installer with an Alberton office at 44 Port Road. It advertises a workmanship warranty of up to 20 years and a 48-hour fix guarantee, which is the strongest published term on this list. Read our full MLEC Solar review for its ABN and Western Australian record.

Pros

• Advertised workmanship warranty of up to 20 years, according to its website
• 4.9 stars from 155 Google reviews for Adelaide, and 4.9 from 206 reviews on ProductReview.com.au, as at November 2026
• Wide battery range: Tesla, AlphaESS, Growatt, SAJ, GoodWe and Sigenergy

Cons

• Think Renewable acquired MLEC Solar in October 2026, so ask in writing who honours the warranty
• SolarQuotes shows 4.5 from 123 ratings, lower than its Google score
• The Adelaide Google review base is far smaller than the Perth office’s

Get a quote at mlecsolar.com.au, or browse all Adelaide installers in our directory.

Key facts. Founded 2014 in Western Australia. The company says its installers are licensed electricians. SA electrical licence PGE303652 is shown on its site.

Why we selected them. Battery work is mostly electrical work, and MLEC combines electrician-led crews with long warranty terms.

Pricing and value. No battery prices published. Expect mid-market quotes.

Warranty and after-sales support. The 20-year figure is advertised as “up to”, so get the exact conditions in your contract.

Best for buyers who value a long workmanship term. Look elsewhere if you want a locally owned firm with no recent ownership change.

Best Review Volume: Best Solar & Batteries

Best Solar & Batteries is a South Australian owned installer with the largest Google review base of any local installer we checked: 852 reviews at 4.9 stars on Google Maps in November 2026. It says its team is in-house and that it has served more than 3,000 customers.

Pros

• Very large review base with a 4.9 average, as at November 2026
• Broad brand range: it names Tesla, LG, Alpha-ESS and Sungrow batteries, and JA Solar, Q-cell, Risen, Jinko and REC panels
• Residential and commercial battery work, plus finance through humm, according to its website

Cons

• Its pages disagree on the Tesla Powerwall 3 term: a product listing says 5 years for installation and manufacturer cover, while its Powerwall 3 blog says 10 years, so get the exact term in writing
• The site still describes its installers as Clean Energy Council accredited, although installer accreditation moved to Solar Accreditation Australia in 2024, so confirm current status yourself
• Prices are quote-only, apart from a blog estimate of about $15,000 to $17,000 for a fully installed Powerwall 3

Get a quote at bestsolarandbatteries.com, or browse all Adelaide installers in our directory.

Key facts. Hindmarsh office on Google Maps; site lists several metro suburbs and says it assists with SA Power Networks approvals.

Why we selected them. Review volume at this level gives a reliable picture of how installs go.

Pricing and value. Not published.

Warranty and after-sales support. The company’s location pages state a 5-year workmanship warranty on solar installations, according to its website; confirm in writing which term applies to a battery.

Best for buyers who want a high-volume local installer with brand choice. Look elsewhere if you want one consistent written warranty term before you call.

Best for Customer Service: Solar Power Direct

Solar Power Direct is a family owned Croydon Park installer that says it has installed more than 10,000 solar systems since 2011. Its Google listing shows 4.9 stars from 341 reviews as at November 2026, and its own site says it is a New Energy Tech Consumer Code approved seller.

Pros

• 4.9 stars from 341 Google reviews, with praise centred on communication and tidy work
• Offers AC and DC coupled batteries from AlphaESS, GoodWe, Tesla and Sungrow, and lists Sigenergy among its brands
• Says SunWiz recognised it as a top 10 installer

Cons

• The only installation warranty we found is 10 years on its solar leasing page, so confirm the term that applies to a purchase and to a battery
• Its panel range leans to value brands such as Risen, so confirm what battery and inverter pairing it quotes
• Specific battery models and prices are not published; the site steers visitors to an online system builder for a quote

Get a quote at solarpowerdirect.com.au, or browse all Adelaide installers in our directory.

Key facts. Builders licence 291653 shown on its site. Family owned.

Why we selected them. A long local record and consistent service themes.

Pricing and value. Not published.

Warranty and after-sales support. The site has a warranty request page and a warranty tracking page, and its leasing page lists a 10-year installation warranty.

Best for buyers who rank a painless process highly. Look elsewhere if you want a written workmanship term for a purchase before you call.

Best for Finance and Retailer Bundles: SunEnergy

SunEnergy, a Norwood installer, markets finance programs called Pay As You Save and SunPlus, and works with the retailers GloBird and Amber for battery owners. Google Maps showed 4.6 stars from 561 reviews in November 2026.

Pros

• Names Sigenergy, Sungrow, AlphaESS, Midea Hiconics and Hinen batteries
• Retailer partnerships aimed at battery owners, which matter when exports pay only about 2 c/kWh
• Explains the federal discount on its site and says it applies it at installation

Cons

• 4.6 stars is the lowest Google average of the Adelaide installers here apart from 1KOMMA5°
• Zero-upfront finance can load interest into the price, so compare the total repayment against a cash quote
• Prices are not published, only finance programs

Get a quote at sunenergy.com.au, or browse all Adelaide installers in our directory.

Key facts. SunEnergy Group Pty Ltd, SA licence BLD335235, per its site.

Why we selected them. Battery volume and a clear retailer pairing strategy.

Pricing and value. Not published; ask for the finance schedule.

Warranty and after-sales support. SunEnergy’s terms and conditions (August 2024) give 5 years on installation workmanship, with manufacturer warranties on top, such as 10 years on Sungrow SBR batteries, according to its website.

Best for buyers who want finance and a retailer plan arranged together. Look elsewhere if you want to compare cash prices first.

Best Rated on Google: DSW Energy

DSW Energy is a Welland installer that shows 5.0 stars from 208 reviews on Google Maps in November 2026. It says SolarQuotes named it South Australia’s best rated solar installer in 2026, and that it has completed more than 10,000 installations across four states.

Pros

• Highest Google average on this list, at 5.0 from 208 reviews
• SA electrical licence PGE333565 shown on its site, ABN 51 607 464 808
• Says its battery systems are modular and sized from usage modelling

Cons

• The homepage does not name battery brands (an image caption mentions Sigenergy), so ask which models it quotes
• Four-state business, so Adelaide is one of several markets
• No workmanship term found; its services page advertises 10 years of free service under a Battery Care Program, so ask exactly what is covered. A 5.0 average also rests on a modest sample

Get a quote at dswenergy.com.au, or browse all Adelaide installers in our directory.

Key facts. The award claims are the company’s own and we did not verify them.

Why we selected them. Consistently high review scores and a battery-focused offer.

Pricing and value. Not published.

Warranty and after-sales support. Services page advertises 10 years of free service and maintenance under its Battery Care Program and a system performance guarantee, according to the company. We found no workmanship term.

Best for buyers who want a well-rated installer and are happy to ask for brand detail. Look elsewhere if you want brands named up front.

Best for Repairs and Retrofits: NRG Solar

NRG Solar began in 2014 repairing systems left by installers that stopped trading. It says it has installed more than 3,000 South Australian systems and mentions the Cheaper Home Batteries Program on its site. Google Maps showed 4.8 stars from 361 reviews in November 2026.

Pros

• Repair background suits adding a battery to an older system
• 4.8 stars from 361 Google reviews as at November 2026
• Solar and battery work plus EV chargers and heat pumps

Cons

• Our Adelaide solar companies guide found aggregate ratings of about 4.5 on review aggregators, with scheduling complaints
• Its five-year workmanship warranty appears only in an older blog post on its site, about two years old, so get the current term in the contract
• Founded 2014, a shorter record than some rivals

Get a quote at nrgsolar.com.au, or browse all Adelaide installers in our directory.

Key facts. St Marys office. Ask whether your inverter is battery-ready before choosing a model.

Why we selected them. Retrofit knowledge matters when the existing inverter limits your options.

Pricing and value. Not published.

Warranty and after-sales support. A blog post on its site gives a five-year workmanship warranty; confirm the current term in your contract.

Best for owners of existing solar adding storage. Look elsewhere for the highest-rated new build.

Best for VPP and Smart Tariffs: 1KOMMA5°

1KOMMA5° in Adelaide is the former Kozco Energy Group at Croydon Park, part of a German-owned group that sells its own batteries, the Tesla Powerwall 3 and its Heartbeat AI platform. The national Google listing shows 4.5 stars from about 1,780 reviews, while the Adelaide hub listing has just one review. See our 1KOMMA5 review.

Pros

• Built around wholesale pricing and VPP optimisation, which suits Adelaide’s high electricity prices
• Sells the Tesla Powerwall 3 and its own battery
• Large national group with 4.4 stars on Trustpilot and 4.3 on SolarQuotes

Cons

• Communication complaints when jobs run late, according to public reviews
• Pushes its own ecosystem, which narrows brand choice
• The 30-year workmanship guarantee is advertised under its 1K5° Care program, so ask which entity backs it and what it excludes

Get a quote at 1komma5.com, or browse all Adelaide installers in our directory.

Key facts. The group says it covers Adelaide and regional South Australia.

Why we selected them. Smart tariff software is a genuine differentiator for battery owners.

Pricing and value. Not published. Model savings without VPP income first.

Warranty and after-sales support. A 30-year workmanship guarantee is advertised under 1K5° Care; ask for named local contacts.

Best for data-minded owners. Look elsewhere for set-and-forget simplicity.

How we reviewed

We shortlisted Adelaide battery installers from Google Maps listings, search results and our directory, keeping those that name batteries on their own sites. We compared reputation, battery range, installation model, price signals, warranty and review patterns. Sources were company websites, Google ratings checked in November 2026, DCCEEW, SA Power Networks and ESCOSA pages. We requested no quotes, made no visits or calls, and no company paid for placement.

What does a solar battery cost in Adelaide?

A 13.5 kWh battery in Adelaide costs roughly $11,000 to $15,000 installed before discounts, or about $7,360 to $11,540 after the federal discount, according to our battery cost guide and the certificate values above. None of the seven installers published a fixed price for a named battery on the pages we read, so treat those as indicative ranges. Compare the same usable kWh across quotes, see our quote comparison guide, and our Powerwall 3 price guide covers one model.

Is a home battery worth it in Adelaide?

A home battery in Adelaide is most worthwhile when you pay high evening rates and export for very little. ESCOSA found retailer feed-in tariffs of 0 to 5.5 c/kWh at 30 June 2026, with 2 c/kWh the most common, while our Powerwall 3 guide uses 41.9 c/kWh as the 2026-27 Adelaide reference usage rate. Storing midday solar for the evening saves the gap. It pays less well if your evening use is small.

Choosing a solar battery installer in Adelaide

Check accreditation yourself. The retailer should be on the Clean Energy Council’s approved retailer list under the New Energy Tech Consumer Code, and the installer on the Solar Accreditation Australia register. Solar Cobber does not verify accreditation.

Ask who installs. Ask in writing whether crews are employees or subcontractors.

Plan backup properly. Ask which circuits are backed up, the switchover time and whether the switchboard needs work.

Compare VPP offers. Joining a VPP is optional for the federal discount, but the REPS incentive needs one.

Confirm the install date. The 31 December 2026 cut-off sets the discount, so put the date in the contract.

FAQ

What is the best solar battery in Adelaide?

There is no single best solar battery for Adelaide, because the right model depends on your usable kWh, backup needs and inverter. Tesla Powerwall 3, Sigenergy SigenStor, AlphaESS and Sungrow are the brands these installers name most.

Is there a solar battery rebate in SA?

Yes, but it is the federal one. The Cheaper Home Batteries Program takes about $3,460 to $3,640 off a 13.5 kWh battery installed in South Australia before 31 December 2026.

Is the SA Home Battery Scheme still open?

No, the SA Home Battery Scheme is closed and the Department for Energy and Mining accepts no new applications. SolarQuotes reported the last subsidies were allocated in July 2022.

What is the REPS VPP incentive in South Australia?

It is a payment for connecting a battery to an approved virtual power plant, funded through retailer obligations. SolarQuotes reported in June 2026 it was worth up to $2,050 and limited to priority group households for the rest of 2026.

How many solar battery quotes should I get in Adelaide?

Three: one in-house specialist, one multi-brand installer and one finance or retailer-bundle option. Compare usable kWh, backup scope and the certificate line.

Do I need flexible exports if I only add a battery?

No. SA Power Networks says adding only a battery to existing solar does not change your export limit. New solar systems must accept flexible exports.

Should I buy a battery now or wait?

Buying before 31 December 2026 usually earns the bigger discount. The factor falls from 6.8 to 5.7 on 1 January 2027, cutting a 13.5 kWh battery’s discount by about $570 to $600.

What if my battery installer goes bust?

The manufacturer warranty usually continues through its Australian office, but workmanship cover normally ends with the company. See our company failures tracker and ask each company how it protects workmanship cover.

Sources

• Cheaper Home Batteries Program, DCCEEW
• Home Battery Scheme closed, Department for Energy and Mining
• REPS VPP activity, ESCOSA
• SolarQuotes on the REPS VPP rebate
• Your solar, SA Power Networks
• Energy Retail Price Offers Comparison Report 2025-26, ESCOSA
• Company websites: MLEC Solar, Best Solar & Batteries, Solar Power Direct, SunEnergy, DSW Energy, NRG Solar, 1KOMMA5°

About this guide

This is independent desk research by the Solar Cobber editorial team, checked in November 2026. Solar Cobber is a free directory that may earn referral or advertising fees from installers, and commercial relationships never affect content. No company was contacted or paid for inclusion. This is general information, not financial advice. For more options see our top 10 South Australian installers. To report an error, use our contact page.