Think Renewable reviews are strong on every major platform as at November 2026: 4.7 to 4.9 stars on Google across four Australian offices (about 1,390 reviews in total), 4.8 from 222 ratings on SolarQuotes, 4.5 from 191 reviews on Trustpilot and 4.3 from 23 reviews on ProductReview.com.au. Think Renewable Pty Ltd is a solar and battery retailer founded in 2021 and headquartered in Surry Hills, Sydney. Our verdict: a legitimate, fast-growing national installer with well-reviewed install crews, a door-knocking sales model and a small but serious set of after-sales complaints. This is independent desk research; we did not contact Think Renewable and were not paid. The company is listed in our directory as Think Renewable.
Key facts
- Think Renewable Pty Ltd (ABN 75 652 837 002) has been registered and active on the Australian Business Register since 16 August 2021, with its main business location in postcode 2010 (Surry Hills, New South Wales).
- Think Renewable states on its website that every installation carries a 10-year workmanship warranty under its Think Care package.
- Think Renewable announced in October 2026 that it had acquired Western Australian installer MLEC Solar, and says the combined group has more than 350 staff and A$130.5 million in combined 2025-26 financial year revenue.
- Think Renewable does not publish package prices; SolarQuotes says reviewers of Think Renewable most commonly report paying A$8,000 to A$12,999, as at November 2026.
- We found no public regulator, court or tribunal enforcement action against Think Renewable as at November 2026.
Think Renewable at a glance
The table below summarises what we could confirm about Think Renewable from public sources, checked on 12 November 2026.
| Item | Detail |
|---|---|
| Founded | 2021, by Daniel Tonkin, David Howie and Rory Dixon (according to the company) |
| Head office | Level 2, 80-84 Wentworth Avenue, Surry Hills NSW 2010 |
| Legal entity and ABN | Think Renewable Pty Ltd, ABN 75 652 837 002 (ABN Lookup, active from 16 August 2021) |
| States served | NSW, Queensland and Western Australia directly; South Australia through MLEC Solar (according to the company) |
| Ownership | Australian-owned private company (according to the company); acquired Collins Group in 2025 and MLEC Solar in October 2026 |
| What it sells | Solar panels, home batteries, EV chargers and virtual power plant sign-ups |
| Workmanship warranty | 10 years (company website) |
| Google rating | 4.7 (539) Surry Hills, 4.7 (481) Perth, 4.8 (316) Fortitude Valley, 4.9 (58) Mittagong, November 2026 |
| SolarQuotes rating | 4.8 from 222 ratings, November 2026 |
| Trustpilot rating | 4.5 from 191 reviews, November 2026 |
| ProductReview.com.au rating | 4.3 from 23 reviews, November 2026 |
| Accreditation as stated by the company | Clean Energy Council and Smart Energy Council member, NECA member, New Energy Tech Approved Seller |
Solar Cobber does not verify accreditation. Check the New Energy Tech Consumer Code approved seller list and the Solar Accreditation Australia register yourself before signing.
Is Think Renewable any good?
Think Renewable is a credible choice on the public evidence, with one clear caveat about what happens when a job goes wrong. Across four platforms and roughly 1,800 reviews, the large majority of customers describe punctual, tidy install crews and a clear handover. On SolarQuotes, 218 of 222 ratings are four or five stars, and the sub-scores are 4.9 for installation and 4.9 for customer service.
The caveat is the minority experience. ProductReview.com.au, where the company has not claimed its listing, shows 17% negative reviews describing slow fault repairs, disputed damage and difficulty getting an escalation answered, and Trustpilot’s summary makes the same point.
Think Renewable has also made two acquisitions in 16 months, and growth at that pace can stretch service teams. A high star rating tells you most installs go well, not that yours will, as we explain in the five-star problem with installer ratings. Check its design and price against two other quotes.
What customers praise
The most consistent praise for Think Renewable is for its installation crews. Recent reviews on SolarQuotes, Trustpilot and ProductReview.com.au (August to November 2026) repeatedly mention the same things:
- Punctual and tidy installs. Reviewers describe crews arriving on time and cleaning up afterwards.
- A proper handover. Many reviews mention installers setting up the monitoring app and explaining how the battery works before leaving.
- Clear sales consultations. Customers often name the consultant who visited and say the system and costs were explained without pressure.
Common Think Renewable complaints
Think Renewable complaints are a small share of its reviews, but they follow recognisable patterns. These are claims made by reviewers on public platforms. We have not verified them and they are not findings against the company.
- Slow after-sales repairs. Several ProductReview.com.au reviewers describe waiting two weeks or longer for a faulty battery or inverter to be fixed, with emails going unanswered until the matter was escalated. One of those reviewers later updated the review to say a replacement battery was installed after a staff member stepped in.
- Disputed installation damage. An August 2026 review posted on both SolarQuotes and ProductReview.com.au alleges roof and wall damage, ten return visits and a withdrawn compensation offer. A Trustpilot review posted in October 2026 alleges electrical faults after a battery was commissioned. Think Renewable replied on Trustpilot that its customer team was investigating and working towards a resolution.
- System design and price. A ProductReview.com.au reviewer says a 5 kW hybrid inverter and battery limited an existing 8.5 kW solar system and says complaints were lodged with NSW Fair Trading; we could not confirm the outcome. Another says the quote was well above other installers’ prices. Many customers first met Think Renewable at their front door, and most reviews that mention it are positive.
On responsiveness, Trustpilot reports that Think Renewable has replied to 88% of its negative reviews but typically takes more than a month to do so. The company’s published complaints procedure promises an acknowledgement within 24 hours on business days and a final response within 25 business days.
Products and brands Think Renewable installs
Think Renewable installs mainstream mid-range and premium brands, with Sigenergy and AlphaESS appearing most often in recent reviews. Its website describes the company as an authorised dealer and installer for brands including LONGi, Jinko, Risen, Sungrow, SolarEdge, Sofar, Tesla, Sigenergy, AlphaESS and Hinen.
We have reviewed several of these products, including the Sigenergy SigenStor and the Tesla Powerwall 3. The brand matters less than the exact model on your quote, so ask for the panel, inverter and battery model numbers in writing.
Think Renewable prices
Think Renewable does not publish package prices, so the only way to get a firm number is a quote. Its website says solar installations generally range from A$3,000 to A$12,000 or more, and promotes interest-free loans, A$0 deposit options and monthly payment plans (company website, checked November 2026).
The table below shows the price bands that Think Renewable customers self-reported on SolarQuotes in reviews dated July to November 2026. These are individual reports, not a price list.
| System as described by the reviewer | Price band reported | Review month |
|---|---|---|
| 5 kW solar, Solis inverter | A$8,000 to A$10,000 | July 2026 |
| 6.6 kW solar, AlphaESS inverter | A$10,000 to A$12,500 | September 2026 |
| 10 kW solar with Sigenergy inverter and battery | A$12,500 to A$15,000 | October 2026 |
A payment plan is not a discount. Ask for the cash price and the total amount repayable side by side, and for the federal Cheaper Home Batteries Program discount as a separate line; it steps down on 1 January 2027. Our guide on how to compare solar quotes lists what a complete quote contains.
Warranty and after-sales support
Think Renewable states that it provides a 10-year workmanship warranty on every installation. A workmanship warranty is the installer’s promise to fix faults in the installation itself, such as wiring, mounting and roof penetrations, as distinct from the manufacturer’s product warranty on the panels, inverter and battery.
The Think Care page also lists annual monitoring reports and a bill check every 12 months. We could not find a full workmanship warranty document with exclusions in November 2026, so ask for the terms before signing.
A workmanship warranty is only as good as the company behind it: if any installer stops trading, it generally ends and you rely on manufacturer warranties and the Australian Consumer Law. See our Australian solar company failures tracker.
Company background
Think Renewable was founded in 2021 and has grown through direct sales and acquisition. ABN Lookup shows Think Renewable Pty Ltd active from 16 August 2021. The company says it was started by Daniel Tonkin, David Howie and Rory Dixon, and that Daniel Tonkin is chief executive.
In June 2025 Think Renewable announced the acquisition of Collins Group, which it described as a solar sales company delivering more than 1,000 installations a year across NSW and Queensland. In October 2026 it announced the acquisition of MLEC Solar, a Western Australian installer founded in 2014. Business News Australia reported the deal on 15 October 2026. Think Renewable says MLEC Solar will keep its own brand and that Think Renewable itself has completed more than 10,000 installations.
We found no public enforcement action against Think Renewable as at November 2026. That reflects searches of public reporting and regulator material, not a formal records check.
Think Renewable vs alternatives
Think Renewable competes with national volume retailers and with established local installers. Ratings are Google ratings from the Solar Cobber directory, checked November 2026; Sydney buyers can find more options in our best solar companies in Sydney guide.
| Company | Google rating (reviews) | Workmanship warranty | Brands named on its site | Best for |
|---|---|---|---|---|
| Think Renewable | 4.7 (539), Surry Hills office | 10 years | Sigenergy, AlphaESS, Tesla, Jinko, Risen | In-home consultation and a managed install in NSW, Queensland or WA |
| Sunboost | 4.7 (6,654) | Not stated on its home page | Fox ESS batteries | Buyers comparing a high-volume national retailer |
| SolarBright | 4.9 (806) | Not stated on its home page | SolarEdge, Tesla, Sungrow, SolaX | NSW buyers who want a company trading since 2008 |
| MLEC Solar | 4.9 (1,577), Perth office | 20 years (up to, company website) | GoodWe, Sigenergy, SAJ, Growatt | WA and SA buyers; now part of the Think Renewable group |
Who Think Renewable suits, and who should look elsewhere
Think Renewable suits households in NSW, south-east Queensland or Western Australia that want one company to manage the whole job, with in-home consultations, quick installs and a 10-year workmanship warranty.
Look elsewhere, or compare harder, if price is your first priority, because Think Renewable does not publish prices and at least one reviewer found its quote high.
Questions to ask Think Renewable before you sign
A door-knock or in-home quote is the moment to slow down. Under the Australian Consumer Law, an unsolicited agreement such as a door-to-door sale comes with a 10 business day cooling-off period, according to the ACCC. Ask these before signing:
- What are the exact panel, inverter and battery model numbers, and can I have the datasheets?
- Will the crew be Think Renewable employees or subcontractors, and who is the accredited installer signing off the job?
- If I have existing solar, how will the new inverter and battery work with it, and will anything limit my total output or backup power?
- What is the cash price, and what is the total amount repayable under the payment plan, including fees?
- Can I have the full 10-year workmanship warranty terms, including exclusions and whether it transfers if I sell the house?
- If a product fails, who lodges the manufacturer claim, and what is your target time to have a technician on site?
Our guide on how to choose a solar installer covers the wider checks.
FAQ
Is Think Renewable legit?
Yes, Think Renewable is a legitimate registered Australian business. Think Renewable Pty Ltd holds ABN 75 652 837 002, has been active on the Australian Business Register since 16 August 2021 and has a head office in Surry Hills, Sydney. As at November 2026 it has about 1,390 Google reviews across four offices, rated 4.7 to 4.9 stars. Scam questions online mostly stem from its door-knocking sales approach, and the ACCC says door-to-door agreements carry a 10 business day cooling-off period.
Is Think Renewable CEC approved?
Think Renewable states that it is a Clean Energy Council member and a New Energy Tech Approved Seller under the New Energy Tech Consumer Code. Solar Cobber does not verify accreditation. You can check the Clean Energy Council approved seller list yourself, and check the individual installer assigned to your job on the Solar Accreditation Australia register.
How much does Think Renewable charge?
Think Renewable does not publish package prices. Its website says solar installations generally range from A$3,000 to A$12,000 or more, and SolarQuotes says reviewers of the company most commonly report paying A$8,000 to A$12,999, as at November 2026. Reviewers with large solar and battery systems report paying more than A$20,000. Get an itemised quote and compare it with at least two others.
What are the most common Think Renewable complaints?
The most common Think Renewable complaints in public reviews concern slow after-sales service when a product fails. Reviewers on ProductReview.com.au and Trustpilot describe waits of two weeks or more for repairs and difficulty getting escalations answered. A smaller number allege installation damage or poor system design. These complaints are a small share of reviews, with 17% of the 23 ProductReview.com.au reviews negative as at November 2026.
What happens to my warranty if Think Renewable closes?
If any solar installer closes, its workmanship warranty generally ends with it. Manufacturer warranties on your panels, inverter and battery continue, and you can claim from the manufacturer directly. Think Renewable states a 10-year workmanship warranty and is trading and expanding as at November 2026.
Sources
- ABN Lookup: Think Renewable Pty Ltd, ABN 75 652 837 002
- Think Renewable website
- Think Renewable: Think Care package and workmanship warranty
- Think Renewable: complaints handling procedure
- Think Renewable: acquisition of MLEC Solar, October 2026
- Think Renewable: acquisition of Collins Group, June 2025
- Business News Australia: Think Renewable acquires MLEC Solar, 15 October 2026
- SolarQuotes: Think Renewable reviews
- Trustpilot: Think Renewable reviews
- ProductReview.com.au: Think Renewable reviews
- SunWiz: Think Renewable 2026 award listing
- ACCC: telemarketing and door-to-door sales
- Google Maps business listings for Think Renewable in Surry Hills, Mittagong, Fortitude Valley and Perth, checked 12 November 2026
About this review
This review was written by the Solar Cobber editorial team from independent desk research, with all ratings, prices and company details checked in November 2026. We did not contact, visit or obtain quotes from Think Renewable. Solar Cobber is a free directory that may earn referral or advertising fees from installers. Commercial relationships never affect our content. Nothing here is financial advice. If you spot an error, send a correction through our contact page.
Filed under Solar Installers
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