The Mornington Peninsula is a good place for rooftop solar and a tricky place to buy it. Homes range from Frankston brick veneers to clifftop holiday houses in Portsea, many sit within reach of salt spray, and plenty are empty for weeks at a time. This guide is for Peninsula homeowners who want a local installer rather than a metropolitan call centre.
We reviewed seven installers that are actually based on or at the edge of the Peninsula: Protec Electrical and Solar (Mornington), Dunton Group (Dromana), Solar 360 Australia (Hastings), South Beach Solar (Mount Martha), BJ White Solar (Hastings), Erg Energy (Seaford) and Watson Electrical and Solar (Rosebud). We compared crews, equipment, warranties, review patterns and how far each travels.
This is independent desk research using company websites, Google and SolarQuotes reviews, Tesla’s installer finder, Solar Victoria and public records. We did not request quotes, visit any business or speak to the companies, and none paid to be included. You will finish with a shortlist, the trade-offs, and a checklist for Peninsula-specific issues like coastal corrosion and holiday-home monitoring.
The Shortlist
- Best Overall: Protec Electrical and Solar
- Best for Batteries and Tesla Powerwall: Dunton Group Electrical and Solar
- Best for Western Port and Phillip Island Coverage: Solar 360 Australia
- Best Family-Run Local: South Beach Solar
- Best for Non-Tesla Battery Options: BJ White Solar
- Best for Frankston and the Northern Peninsula: Erg Energy
- Best Southern Peninsula Owner-Operator: Watson Electrical and Solar
Comparison Table
| Company | Base | Operating since | Google rating (approx., Oct 2026) | Battery brands | On Tesla finder (3931) | Workmanship warranty | Best suited for |
|---|---|---|---|---|---|---|---|
| Protec Electrical and Solar | Mornington | 10+ years | 4.9 stars, about 140 reviews | Tesla, Sigenergy, Enphase, GoodWe, SolarEdge | No | Not published on pages we read | Most Peninsula homes |
| Dunton Group | Dromana | 2014 | 5.0 stars, about 140 reviews | Tesla | Yes, Certified Installer | Not published on pages we read | Premium solar and Powerwall |
| Solar 360 Australia | Hastings | About a decade locally | 5.0 stars, about 125 reviews | Tesla, BYD, Enphase, FranklinWH, iStore | Not under its own name | Not published on pages we read | Western Port, Phillip Island |
| South Beach Solar | Mount Martha | About 15 years | 5.0 stars, about 60 reviews | Tesla, Sigenergy, Sungrow, BYD | No | Not published on pages we read | Family-run service |
| BJ White Solar | Hastings | Not published | 5.0 stars, about 85 reviews | Sigenergy, GoodWe, BYD, AlphaESS | No | Not published on pages we read | Value-focused battery buyers |
| Erg Energy | Seaford | 2017 | 4.9 stars, about 105 reviews | Tesla, BYD, Sungrow, Enphase, Fronius | No | Not published on pages we read | Frankston, Langwarrin, Mount Eliza |
| Watson Electrical and Solar | Rosebud | Not published | 5.0 stars, about 65 reviews | Not published | No | Not published on pages we read | Rosebud to Portsea |
Ratings are rounded from Google Maps as of October 2026. “On Tesla finder” reflects Tesla’s Certified Installer finder for postcode 3931 on 11 October 2026. Few Peninsula installers publish a workmanship warranty length, which is itself worth noting: ask for it in writing.
Best Overall: Protec Electrical and Solar
Protec is the most complete Peninsula-based option. It is a Mornington electrical contractor that says it has done more than 1,000 installs across the Peninsula over 10-plus years, and its service map lists suburbs from Mount Eliza and Moorooduc to Portsea and Point Leo.
Pros
- About 4.9 stars from roughly 140 Google reviews, with recurring praise for communication and competitive pricing
- The broadest battery range of the locals: Tesla Powerwall 3, Sigenergy, Enphase IQ8 and IQ batteries, GoodWe and SolarEdge
- Full electrical contractor, so switchboard upgrades, three-phase work and EV chargers are handled by the same business
Cons
- Advertises Powerwall 3 installation but did not appear on Tesla’s Certified Installer finder for postcode 3931 when we checked; if Tesla certification matters to you, ask how the install and warranty registration are handled
- Most reviews name the same person, Troy, and a small crew; a business that leans on one key person can stretch thin in busy rebate periods
Enquire at protecelectrics.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Mornington base, services the whole Peninsula. States Solar Accreditation Australia accreditation. In our directory as Protec Electrical and Solar.
Why we selected them: Local, high-volume, broad brand range and strong reviews.
Products and brands: SolarEdge, Enphase and GoodWe inverters; Tesla, Sigenergy and Enphase batteries.
Installation quality and reputation: In-house electrical crew. Reviewers mention small details handled well, such as working around site constraints.
Pricing and value: Reviewers repeatedly describe pricing as competitive.
Warranty and after-sales support: Workmanship term not published; reviewers mention help with questions after installation.
Customer feedback: Communication, punctuality and advice on sizing are the recurring themes.
Best for most Peninsula homes, especially with complex electrical needs. Look elsewhere if you want a Tesla-listed installer for a Powerwall.
Best for Batteries and Tesla Powerwall: Dunton Group Electrical and Solar
Dunton Group is a Dromana business led by Sam and Tas Dunton, operating on the Peninsula since 2014. It is the only installer in this guide that appeared as a Tesla Certified Installer on Tesla’s finder for Mornington, and it says its crew is “full-time, in-house professionals” with no subcontractors.
Pros
- Tesla Certified Installer for the Peninsula, per Tesla’s own finder
- No subcontractors, per the company
- About 5.0 stars from roughly 140 Google reviews
Cons
- Its preferred brands are premium (SunPower panels from Maxeon, Fronius inverters, Tesla batteries), so expect quotes above budget installers
- No SolarQuotes profile that we could find, so Google is the only large review source
Enquire at duntongroup.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Dromana showroom at Thomson Terrace, local since 2014, with the owners citing more than 25 years of combined electrical and solar experience. In our directory as Dunton Group Electrical and Solar.
Why we selected them: The clearest Powerwall credentials on the Peninsula plus an in-house crew.
Products and brands: Maxeon and SunPower panels, Fronius inverters, Tesla Powerwall. See our Tesla Powerwall 3 review for its trade-offs.
Installation quality and reputation: Reviewers describe clear explanations and quality installation.
Pricing and value: Upper range, reflecting the brands.
Warranty and after-sales support: Ask for the workmanship term.
Customer feedback: Consistently five-star.
Best for buyers wanting premium panels with a Powerwall. Look elsewhere if you want the cheapest 6.6 kW system.
Best for Western Port and Phillip Island Coverage: Solar 360 Australia
Solar 360 Australia trades as Solargain Mornington Peninsula from Hastings, as an authorised distributor for the national Solargain business. It says it has installed thousands of systems over the past decade and covers Hastings, the whole Peninsula, Phillip Island, Inverloch, Korumburra and as far as Traralgon.
Pros
- About 5.0 stars from roughly 125 Google reviews, and 4.7 from roughly 60 SolarQuotes ratings
- Wide range: AIKO, Jinko, Trina and SunPower panels; Fronius, GoodWe and Enphase inverters; batteries including Tesla Powerwall 3 and FranklinWH
- Also handles solar hot water and plumbing, useful when replacing gas or electric storage hot water
Cons
- Value for money is its lowest SolarQuotes score (4.5); a 2025 reviewer said they chose the most expensive quote and that a hot water timer included in the quote was missed
- Its range leans on Solargain’s iStore products for hot water and some inverters, which are less widely reviewed than mainstream brands
Enquire at solar360australia.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Hastings base. In our directory as Solar 360 Australia.
Why we selected them: The widest service area of any Peninsula-based installer, backed by a national supplier.
Products and brands: As above; SolarQuotes reviewers report paying about $11,760 to $13,000 for 10 kW to 13 kW systems.
Installation quality and reputation: Installation scores 4.9 on SolarQuotes.
Pricing and value: Mid to upper range.
Warranty and after-sales support: Confirm what is backed locally and what by Solargain nationally.
Customer feedback: Strong installation scores; occasional quote-detail misses.
Best for Western Port, Phillip Island and South Gippsland. Look elsewhere if you want the lowest price.
Best Family-Run Local: South Beach Solar
South Beach Solar is a family-run business on the Peninsula that says it has about 15 years of solar experience, including commercial projects such as the Rye RSL. Its electrical licence sits with Jordan Electrical and Data.
Pros
- About 5.0 stars from roughly 60 Google reviews and a perfect 5.0 on SolarQuotes
- Mainstream brands: AIKO, Jinko, LONGi and Trina panels; Enphase, Fronius, SolarEdge and Sungrow inverters
- Batteries include Tesla Powerwall 3, Sigenergy SigenStor, Sungrow and BYD
Cons
- Only five SolarQuotes reviews, so the perfect score rests on a very small sample
- Thin published detail: no workmanship warranty length or founding year on the pages we read
Enquire at southbeachsolar.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Mount Martha listing, Somerville business address, services the whole Peninsula. In our directory as South Beach Solar.
Why we selected them: Long local history and a broad, mainstream brand list.
Products and brands: As above.
Installation quality and reputation: Installer model not published.
Pricing and value: Not published.
Warranty and after-sales support: Ask for terms in writing.
Customer feedback: Uniformly positive, small sample.
Best for households who want a small family business. Look elsewhere if you want lots of independent reviews.
Best for Non-Tesla Battery Options: BJ White Solar
BJ White Solar/Electrics is a Hastings electrical contractor serving Mount Eliza through to Sorrento and Portsea. It installs a mid-priced, value-oriented brand mix and does not list Tesla among its current battery brands.
Pros
- About 5.0 stars from roughly 85 Google reviews
- Value-focused brands: Jinko Tiger Neo panels, GoodWe, Sigenergy and Sungrow inverters
- Batteries include AlphaESS, BYD, GoodWe and Sigenergy, giving options well below Powerwall pricing
Cons
- SolarQuotes shows more four-star than five-star reviews (13 against 12, plus one three-star), a less glowing pattern than its Google rating
- One reviewer called it expensive and rated installation 3 out of 5; and it does not appear to offer Powerwall
Enquire at bjwhiteelectrics.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Hastings base. States Solar Accreditation Australia accreditation and approved retailer status. In our directory as BJ White Solar/Electrics.
Why we selected them: A local option for buyers who want a capable non-Tesla battery.
Products and brands: As above.
Installation quality and reputation: Accredited electricians; installation scores 4.8 on SolarQuotes.
Pricing and value: Value scores 4.7.
Warranty and after-sales support: Not published.
Customer feedback: Positive; one recent reviewer said their install date was brought forward by several weeks.
Best for value-minded battery buyers. Look elsewhere if you want a Powerwall.
Best for Frankston and the Northern Peninsula: Erg Energy
Erg Energy is a Seaford installer (registered company since 2017) that says its installs are carried out by experienced Master Electricians. It is the closest strong option for Frankston, Langwarrin, Carrum Downs and Mount Eliza.
Pros
- About 4.9 stars from roughly 105 Google reviews, and 4.9 from 16 SolarQuotes ratings with no review below four stars
- Broad mainstream range: AIKO, REC and Trina panels; Enphase, Fronius, Sigenergy and Sungrow inverters
- Batteries include Tesla, BYD, Sungrow, Enphase and Fronius
Cons
- Seaford is more than 45 km from Portsea, so southern Peninsula buyers should ask about travel and service response
- Small SolarQuotes sample and no published workmanship warranty length on the pages we read
Enquire at ergenergy.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Seaford base, services Melbourne’s south-east and the Peninsula. In our directory as Erg Energy Solar.
Why we selected them: Strong scores and a broad range for the northern Peninsula.
Products and brands: As above.
Installation quality and reputation: Installation scores 4.9.
Pricing and value: Value scores 4.8.
Warranty and after-sales support: Ask for terms.
Customer feedback: Reviewers describe installs going to plan.
Best for Frankston to Mount Eliza. Look elsewhere if you live at the southern tip.
Best Southern Peninsula Owner-Operator: Watson Electrical and Solar
Watson Electrical and Solar is a Rosebud business founded by licensed electrician and accredited solar installer Ben Watson, who says he works with clients from consultation through design to installation.
Pros
- About 5.0 stars from roughly 65 Google reviews
- Owner involved in every job, per the company and its reviewers
- Covers solar, batteries, EV charging and general electrical work
Cons
- Founding year, brands and warranty terms are not published on the pages we read
- A very small team, so lead times may stretch in summer
Enquire at watsonelec.com.au or browse all Mornington Peninsula installers in our directory.
Key facts: Rosebud base, services the Peninsula.
Why we selected them: A highly rated local for Rosebud, Rye, Blairgowrie and Sorrento.
Products and brands: Not published; ask for model numbers.
Installation quality and reputation: Reviewers praise precise, careful work.
Pricing and value: Reviewers describe good value.
Warranty and after-sales support: Ask.
Customer feedback: Uniformly positive.
Best for southern Peninsula homes. Look elsewhere if you want published warranty detail before you call.
How We Reviewed
We mapped installers with a base between Seaford and Rosebud using Google Maps, our directory and search results, then removed metropolitan companies without a Peninsula base and anyone with too few reviews to judge. We checked Tesla’s finder for postcode 3931 and read SolarQuotes profiles where they existed.
Each company was judged on experience, equipment, installation model, pricing signals, warranty, customer service and after-sales support. No quotes were requested and no company paid for inclusion.
Solar Cobber does not verify accreditation. Check the Clean Energy Council approved retailer list, the Solar Accreditation Australia register and, for the Victorian rebate, Solar Victoria’s authorised retailer list.
Choosing a Solar Company on the Mornington Peninsula
Claim the Victorian rebate correctly. Solar Victoria offers up to $1,400 off a solar panel system plus an optional matching interest-free loan, if combined household income is under $150,000 and the property is worth under $3 million. Rebates are released monthly, and you must use an authorised retailer. The federal STC discount applies on top; see our STC explainer.
Expect low feed-in tariffs. Victoria has had no minimum feed-in tariff since 1 July 2025, so retailers pay what they choose. Design for self-consumption, and read our feed-in tariff tracker.
Batteries get federal help only. No Victorian battery scheme is open; the federal discount takes roughly 30 per cent off. See our battery rebate guide and battery reviews.
Coastal corrosion. Within sight of the bay or Bass Strait, ask whether panels are rated for salt mist and whether rails and fixings suit coastal sites.
Holiday homes. If the house sits empty, insist on monitoring you can check remotely.
Your network. United Energy runs the Peninsula’s network; your installer handles connection approval.
Compare carefully. Use our quote comparison guide, installer checklist, the Victoria top 10 and Victorian listings.
FAQ
How much does solar cost on the Mornington Peninsula?
Prices depend on brand and roof, but SolarQuotes reviewers of one Hastings installer report paying about $11,760 to $13,000 for 10 kW to 13 kW systems. Budget brands come in lower, premium panels higher.
Is a battery worth it here?
With low feed-in tariffs, storing solar is more valuable than exporting it. The federal discount steps down on 1 January 2027.
How many quotes should I get?
Three, ideally one from each part of the Peninsula’s range: premium, mid and value.
Are cheap installers safe?
Some are fine, but check accreditation, model numbers and who installs.
What if my installer closes?
Manufacturer warranties survive; workmanship cover may not. Favour established locals.
What deposit is reasonable?
Ten to 20 per cent; avoid full prepayment.
Red flags?
No site visit, vague brands, or pressure to sign before a rebate “runs out”.
Related guides
- Top 10 Solar Companies in Melbourne: Leading Installers for 2026
- The 7 Best Solar Battery Installers in Melbourne for 2026
- We Reviewed the Best Solar Companies in Geelong (2026)
About This Review
Written by the Solar Cobber editorial team. Updated October 2026.
Solar Cobber is a free directory of Australian solar installers. We may earn referral or advertising fees from some installers, but commercial relationships never affect inclusion or rankings. Sources: company websites, Google Maps ratings, SolarQuotes reviews, Tesla’s Certified Installer finder (checked 11 October 2026), Solar Victoria and the Essential Services Commission.