Solar Battery Perth: 7 Best Battery Installers for 2026

The best solar battery Perth installers in November 2026 are Positive Energy Solutions, PSW Energy (Perth Solar Warehouse), MLEC Solar, Regen Power, Koala Solar, Plico Energy and Solargain. All seven are listed vendors for the WA Residential Battery Scheme, which takes up to A$1,300 off a battery for Synergy customers on top of a federal discount of roughly A$2,580 to A$2,720 on a 10 kWh battery.

This guide is for Perth households adding a home battery to existing solar, or buying solar and storage together. It is independent desk research using company websites, public review platforms, Plenti’s vendor directory and WA Government, Western Power and federal program pages, checked in November 2026. We did not contact any company, request quotes or accept payment for inclusion. Each installer wins a specific use case and each has a real weakness, so you can decide who to call first and what to ask.

Key facts

• The WA Residential Battery Scheme pays A$130 per kWh of usable battery capacity, capped at A$1,300, for Synergy customers in Perth and the South West as at November 2026, according to Energy Policy WA.
• The WA Residential Battery Scheme rebate requires the household to join a virtual power plant (VPP) for two years, and the WA Government says Synergy’s VPP can call on a battery up to 30 times a year for a maximum of 6 hours per event.
• The federal Cheaper Home Batteries Program is worth roughly A$2,580 to A$2,720 on a 10 kWh battery installed before 31 December 2026 at a certificate price of A$38 to A$40, and the certificate factor falls from 6.8 to 5.7 on 1 January 2027.
• Western Power says a home without an export (offtake) agreement with its electricity retailer has its inverter export limited to 1.5 kW, and that export limits under its Basic Embedded Generator requirements range from 1.5 kW to 5 kW.

Perth battery installers compared

This table compares the seven Perth battery installers on facts published on their own websites and Google ratings from Google Maps, all checked in November 2026.

WA battery rebate and Synergy rules in Perth (November 2026)

A Perth household buying a battery in November 2026 can stack two discounts: the federal Cheaper Home Batteries Program and the WA Residential Battery Scheme. The installer claims both and takes them off the quote. Our WA solar and battery rebate guide has the full rules.

This table shows the combined discount for a Synergy customer installing before 31 December 2026, using the federal factor of 6.8 certificates per usable kWh and a certificate price of A$38 to A$40.

WA Residential Battery Scheme. The WA rebate is A$130 per usable kWh for Synergy customers, capped at 10 kWh. The battery must be new and at least 5 kWh, the inverter must be on Synergy’s Supported Solutions List, and the vendor must be in Plenti’s vendor directory. The WA Government’s scheme Q&A, last updated 4 August 2026, says the rebate runs until 100,000 have been paid.

Synergy VPP requirement. A virtual power plant (VPP) is a group of home batteries that a retailer can control together to support the grid. The WA rebate requires a two-year VPP sign-up: Synergy Battery Rewards, or an approved alternative such as the Plico Virtual Power Plant. The WA Government’s applicant page says Synergy accesses the battery up to 30 times a year for up to 6 hours. Synergy’s own site blocked our access, so read the current Battery Rewards terms yourself.

Western Power export limits. Western Power says export limits range from 1.5 kW to 5 kW depending on the retailer agreement and network category, and a home with no offtake agreement is held to 1.5 kW. Adding an AC-coupled battery needs a new application, and most get approval to install within 15 business days, according to Western Power.

Check the Tesla Powerwall 3. Positive Energy Solutions and PSW Energy both state on their websites that the Tesla Powerwall 3 qualifies for the federal discount only, not the WA rebate. Regen Power’s website says the Powerwall 3 is on Synergy’s list. We could not open Synergy’s list to settle it, so ask for the WA rebate as a separate line on any Powerwall quote.

Why batteries suit Perth. Synergy pays 10 c/kWh for exports from 3pm to 9pm and 2 c/kWh at other times under the Distributed Energy Buyback Scheme, according to Energy Policy WA. Storing midday solar instead of exporting it at 2 c/kWh is the financial case.

Best Overall Battery Specialist: Positive Energy Solutions

Positive Energy Solutions is the strongest all-round choice for a Perth battery because it combines six battery brands, published prices and a 10-year workmanship warranty. The company says 98 per cent of the solar systems it installed in 2026 included a battery.

Pros

• Six battery brands, including the Sigenergy SigenStor, Sungrow, BYD and Fronius Reserva
• Publishes battery prices after rebates (checked by the company on 1 October 2026)
• 10-year installation workmanship warranty, published as a PDF
• 4.9 stars from roughly 470 Google reviews as at November 2026

Cons

• Premium pricing: its 6.6 kW SunPower system with a 9.5 kWh Fronius Reserva starts from A$14,090 after rebates, against A$11,920 for Plico Energy’s 6.6 kW and 9.3 kWh package
• The website says systems are installed by “accredited installers” but does not say whether they are employees or subcontractors
• Fewer public reviews than Regen Power or MLEC Solar

Get a quote at positiveenergy.com.au.

Key facts. Showroom at 59 Howe Street, Osborne Park. The company says it is a New Energy Tech Approved Seller, a Sigenergy Gold Installer and a Tesla Powerwall Certified Installer.

Products and brands offered. Sigenergy, Sungrow SBH, BYD Battery-Box HVM, Tesla Powerwall 3, Fronius Reserva and iStore, mostly with SunPower panels.

Pricing and value. Battery-only prices after WA and federal rebates start from A$5,990 for a 9 kWh Sigenergy SigenStor, A$8,990 for a 15 kWh Sungrow SBH and A$10,490 for an 18 kWh SigenStor, according to its price page.

Warranty and after-sales support. 10-year workmanship warranty, an in-house service manager and third-party 24/7 monitoring, according to the company.

Best for households wanting a premium, larger battery. Look elsewhere if lowest price is the priority.

Best for Written Guarantees and Tesla or Sigenergy: PSW Energy (Perth Solar Warehouse)

PSW Energy, which trades to households as Perth Solar Warehouse, publishes the clearest warranty document of the seven. Its battery guarantee covers the battery and installation workmanship for 10 years and names the legal entity that gives it.

Pros

• 10-year battery and workmanship guarantee with published terms, including call-outs, parts and labour
• Says it acts as the manufacturer’s local warranty agent for stocked products
• Tesla, Sigenergy and GoodWe AC-coupled batteries, plus Sungrow, GoodWe and iStore DC-coupled options
• 4.9 stars from roughly 980 Google reviews as at November 2026

Cons

• About 20 per cent of installs use subcontract installers, according to its own FAQ (customers can ask for an in-house team)
• Perth metro only, from Yanchep to Mandurah and the Peel fringe
• Sales run through remote assessment by default, which suits confident buyers more than those wanting a home visit

Get a quote at perthsolarwarehouse.com.au.

Key facts. Trading since 2013 as a division of McKercher Corporation Pty Ltd, with sites in Bibra Lake and Neerabup and about 50 staff, according to its website. Says it is a NETCC Approved Seller.

Products and brands offered. Tesla Powerwall 3, Sigenergy, GoodWe ESA, GoodWe Lynx, Sungrow SBR and iStore.

Installation quality and reputation. The company says SolarQuotes rates it “Legendary” and SunWiz recognised it from 2023 to 2025.

Pricing and value. Itemised deals are published on its website and catalogue. We did not capture a dated battery price, so compare its current catalogue with other quotes.

Warranty and after-sales support. Support line answered Monday to Friday, 9am to 4pm AWST, plus an online support form.

Best for metro buyers set on Tesla or Sigenergy who read the fine print. Look elsewhere in regional WA.

Best Workmanship Warranty: MLEC Solar

MLEC Solar advertises the longest workmanship warranty in this guide, up to 20 years, and holds 4.9 stars from roughly 1,580 Google reviews as at November 2026. Our MLEC Solar review covers it in depth.

Pros

• Workmanship warranty of up to 20 years (advertised)
• A 48-hour fix guarantee that pays A$10 a day if a fault is not resolved in time, according to its website
• The company says every installer is a licensed electrician on its own staff

Cons

• Think Renewable acquired MLEC Solar in October 2026, according to Business News Australia, so ask in writing which entity backs the warranty
• “Up to” 20 years means the term depends on the system; get the exact figure in the contract
• No published prices

Get a quote at mlecsolar.com.au.

Key facts. Founded 2014 by electricians, based in Canning Vale, also installs in Adelaide. Legal entity MLEC West Pty Ltd.

Products and brands offered. GoodWe, Sigenergy, SAJ and Growatt batteries, with Tesla and AlphaESS also named.

Installation quality and reputation. 4.5 from 123 SolarQuotes ratings as at November 2026. The low-star reviews mention slow after-sales contact, sales calls and one-off errors such as broken tiles.

Pricing and value. Not published. Finance is offered through several lenders, so ask for the cash price.

Warranty and after-sales support. Strong on paper. Confirm how the new ownership affects claims.

Best for buyers who rank warranty length first. Look elsewhere if the ownership change worries you.

Best Track Record: Regen Power

Regen Power has the longest history of the seven, established in Perth in 2003, and the largest Google review base at 4.9 stars from roughly 1,600 reviews as at November 2026. The company says it has completed more than 45,000 solar and 3,000 storage installations.

Pros

• 23 years of trading, which lowers the risk of an orphaned workmanship warranty
• Seven battery brands, all lithium iron phosphate (LFP), according to its website
• Says it holds Tesla certified installer status

Cons

• 5-year workmanship warranty, half the 10 years offered by Positive Energy Solutions, PSW Energy and Koala Solar
• Rebate figures on its website were inconsistent in November 2026: one page put the federal discount on a 10 kWh battery at about A$3,720, another at A$2,500 to A$2,700 (the second is current)
• Does not publish battery prices or say whether crews are employees or subcontractors

Get a quote at regenpower.com.

Key facts. Based in Canning Vale. Founded by a Curtin University renewable energy professor, according to its website.

Products and brands offered. Tesla Powerwall 3, BYD Battery-Box, AlphaESS, iStore, Sigenergy, Anker Solix and GoodWe Lynx Home.

Pricing and value. Not published.

Warranty and after-sales support. 5 years on workmanship, plus manufacturer warranties.

Best for buyers who value a long-established business. Look elsewhere for a longer workmanship term.

Best Electrician-Led Local Installer: Koala Solar

Koala Solar is a Yangebup installer that grew out of an electrical contracting business and took its current name in January 2015. It holds 4.9 stars from roughly 640 Google reviews as at November 2026.

Pros

• 10-year workmanship warranty, according to its website
• Says it is a certified Tesla Energy installer, a Fronius Solutions Partner Plus and a NETCC Approved Seller
• Installs beyond the metro area, including Mandurah, Bunbury and Busselton

Cons

• Narrower battery range than Positive Energy Solutions or Regen Power
• No published battery prices
• The company does not state its install model; a customer testimonial on its site says no subcontractors were used, so confirm in writing

Get a quote at koalasolar.com.au.

Key facts. More than 8,000 solar installations claimed.

Products and brands offered. Tesla Powerwall 3, FranklinWH, BYD Battery-Box Premium and Sigenergy.

Pricing and value. Not published.

Warranty and after-sales support. 10 years on workmanship, with aftercare and maintenance options, according to the company.

Best for households south of the river and in the South West wanting backup-capable batteries. Look elsewhere for the widest brand choice.

Best for VPP and Weekly Payments: Plico Energy

Plico Energy is the only installer here with its own VPP named on the WA Government’s list of eligible VPP products. It sells upfront or on a 10-year weekly plan. Our Plico Energy review has the full costings.

Pros

• The Plico Virtual Power Plant is an approved alternative to Synergy Battery Rewards
• Publishes indicative prices: battery-only systems from A$8,725 upfront after rebates, as at November 2026
• Weekly plan from A$26 a week for a battery with no large upfront payment

Cons

• 4.1 stars from roughly 370 Google reviews and 3.2 from 73 on ProductReview.com.au, the lowest ratings in this guide
• Reviews from February to June 2026 describe installation delays and unreturned calls
• The weekly plan costs roughly 50 per cent more in total than paying upfront, by our calculation from its published prices

Get a quote at plicoenergy.com.au.

Key facts. Trading name of Starling Energy Group Pty Ltd, based in Osborne Park. First installations in 2019, according to the company.

Products and brands offered. AlphaESS, FoxESS and Sigenergy batteries.

Installation quality and reputation. Mixed. SolarQuotes shows 4.5 from 64 reviews, open platforms are lower.

Pricing and value. Upfront prices are near the market average. The weekly plan is costly.

Warranty and after-sales support. 10 years on battery and inverter, according to the company. Workmanship term not separately published.

Best for households that cannot pay upfront or want a non-Synergy VPP. Look elsewhere if prompt communication matters most.

Best One-Stop Supplier with a Service Network: Solargain

Solargain is a Malaga-based national retailer that has sold solar PV since 2008 and also sells hot water, heat pumps and EV chargers. Its Perth head office holds 4.6 stars from roughly 435 Google reviews as at November 2026. See our Solargain review.

Pros

• One of the widest battery ranges in Perth, with 11 brands listed on its website
• A dedicated service department and nine company sites nationally
• 4.6 stars from 995 ProductReview.com.au reviews as at November 2026

Cons

• 5-year workmanship warranty
• Solargain controls the iStore brand that features in many of its packages, so compare against an independent brand
• Installation is by employees or local contractors, and reviews most often criticise slow after-sales responses

Get a quote at solargain.com.au.

Key facts. Legal entity Solargain PV Pty Ltd. Head office at 10 Milly Court, Malaga.

Products and brands offered. iStore, Tesla Powerwall 3, Fronius Reserva, BYD, FranklinWH, Sungrow and others.

Installation quality and reputation. SolarQuotes scores installation at 4.5 and customer service at 4.3 from 1,121 ratings.

Pricing and value. Not published on its offer pages.

Warranty and after-sales support. 5 years on installation and 10 years on the mounting frame.

Best for households wanting one supplier for several upgrades. Look elsewhere for a long workmanship warranty.

How we reviewed

We shortlisted Perth battery installers from Google Maps, Google search results, the Solar Cobber directory and Plenti’s vendor directory, keeping companies with a Perth base, clear battery credentials and a substantial public review record. We requested no quotes, made no visits or calls, and no company paid for placement. More options are in our Perth solar companies guide and the top WA installers ranking.

Choosing a solar battery installer in Perth

The right Perth battery installer is an approved scheme vendor who quotes the correct rebates, names the VPP and explains what Western Power will allow at your address.

Check accreditation yourself. Solar Cobber does not verify accreditation. Look up the installer on the Solar Accreditation Australia register, the retailer on the Clean Energy Council’s approved seller list, and the vendor in Plenti’s directory.

Ask who installs it. PSW Energy says 80 per cent of its installs are in-house. MLEC Solar says all are. Get the answer in writing from anyone else.

Get the rebates as separate lines. A quote should show battery certificates, the WA rebate and usable kWh separately. Old “up to $5,000” figures predate the May 2026 federal cut.

FAQ

How much does a solar battery cost in Perth?

A 10 kWh solar battery in Perth costs roughly A$6,100 to A$6,700 installed after both rebates, based on the Solar Choice national average of A$7,384 to A$7,984 after the federal discount in November 2026, less the A$1,300 WA rebate. Published Perth prices range from A$5,990 for a 9 kWh Sigenergy battery at Positive Energy Solutions to A$8,725 for Plico Energy’s entry battery.

What is the WA battery rebate worth for Synergy customers?

The WA battery rebate is A$130 per usable kWh, capped at A$1,300, for Synergy customers as at November 2026. It stacks with the federal discount, which is about A$2,580 to A$2,720 on a 10 kWh battery installed before 31 December 2026.

Do I have to join Synergy’s VPP to get the rebate?

Yes, you must join a VPP to get the WA rebate, but it does not have to be Synergy’s. Synergy customers can choose Synergy Battery Rewards or an approved alternative offered by their battery supplier. The agreement runs for two years.

Is the Tesla Powerwall 3 eligible for the WA battery rebate?

It is unclear, so check before you sign. Two Perth installers state the Tesla Powerwall 3 qualifies for the federal discount only, while another says it is on Synergy’s list. Ask for the WA rebate to be shown as a separate line on the quote.

Should I buy a battery now or wait until 2027?

Buying before 31 December 2026 gets a larger federal discount. The certificate factor falls from 6.8 to 5.7 on 1 January 2027, which is about A$420 to A$440 less on a 10 kWh battery at current certificate prices.

What happens to my warranty if the installer closes?

The battery manufacturer’s product warranty continues, but the installer’s workmanship warranty usually ends with the business. That is why trading history and a named legal entity on the warranty matter.

Sources

• WA Residential Battery Scheme: questions and answers, Energy Policy WA
• WA Residential Battery Scheme: information for applicants, WA Government
• WA Residential Battery Scheme vendor directory, Plenti
• WA battery rebate and connection FAQs, Western Power
• Basic Embedded Generator Connection Technical Requirements FAQs, Western Power
• Cheaper Home Batteries Program, DCCEEW
• Energy buyback schemes, Energy Policy WA
• Solar battery price index, Solar Choice
• Company websites: Positive Energy Solutions prices, Perth Solar Warehouse guarantee, Regen Power battery brands, Koala Solar
• Google Maps ratings, ProductReview.com.au and SolarQuotes, November 2026

About this guide

Written by the Solar Cobber editorial team as independent desk research, checked in November 2026. Solar Cobber is a free directory that may earn referral or advertising fees from installers, and commercial relationships never affect which companies we include, the awards or the negatives we publish. No company was contacted or paid for inclusion. This is general information, not financial advice. Browse more solar installers in Western Australia, and send corrections through our contact page.