Cyanergy Reviews 2026: Ratings, Closure Notice and Complaints

Cyanergy Pty Ltd was a Victorian business based in Truganina, in Melbourne’s west, that sold solar, batteries, heat pumps and air conditioners, many of them through government energy-efficiency schemes. According to an Essential Services Commission (ESC) update dated 17 June 2026, the commission cancelled Cyanergy’s Victorian Energy Upgrades accreditation following advice that Cyanergy had entered external administration and was no longer operating. ProductReview.com.au said on 14 November 2026 that Cyanergy is no longer operating or trading. It holds 3.7 stars from 452 ProductReview.com.au reviews and 4.3 stars from about 980 Google reviews. This is independent desk research. We did not contact Cyanergy and were not paid by it.

If you paid Cyanergy a deposit or have an unfinished job or warranty claim, the practical questions are below under what to do if you were a Cyanergy customer.

Key facts

• When we checked on 14 November 2026, ProductReview.com.au stated that Cyanergy is no longer operating or trading, and rated it 3.7 out of 5 from 452 reviews.
• The Essential Services Commission suspended Cyanergy’s Victorian Energy Upgrades accreditation on 19 March 2026 and cancelled it on 17 June 2026, according to the ESC update of that date, following advice that Cyanergy had entered external administration and was no longer operating.
• On 30 January 2026 the Essential Services Commission restricted Cyanergy’s accreditation for six weeks over alleged non-compliant heat pump water heater upgrades with wiring problems, and ordered it to surrender 36 certificates worth about A$2,895.
• In June 2020 the Essential Services Commission issued Cyanergy a warning and required an independent audit after about 10% of the Victorian energy efficiency certificates it claimed were found invalid; Cyanergy surrendered 20,894 certificates.
• Google Maps showed Cyanergy at 4.3 stars from about 980 reviews in November 2026, a much higher score than its 3.7 on ProductReview.com.au.
• We could not confirm Cyanergy’s ABN or ACN from a primary source, so we do not state them.

Cyanergy at a glance

Table: the facts we could confirm about Cyanergy, with sources, checked 14 November 2026. Our directory lists a Cyanergy NSW profile, but its rating and review figures there are old and do not reflect the closure.

Is Cyanergy any good?

Cyanergy was a high-volume business with a split reputation, and sources say it is no longer operating, so the question for most readers is what happens to money already paid. Many customers praised friendly salespeople, prompt installs and competitive prices. Others, especially in the last year of trading, described unanswered calls, refunds not paid, and warranty problems that went unresolved.

The regulator record adds context: a 2020 Essential Services Commission warning over allegedly falsified installation invoices, and a 2026 action over alleged non-compliant heat pump wiring by contractors. None of that proves how any individual job went, but together with the reported closure it means anyone with a live claim should act quickly.

Customers rated Cyanergy better on value for money (4.1) than on overall experience (3.7), which fits the pattern of competitive prices and weak after-sales service.

What customers praise

On ProductReview.com.au and Google, the positive reviews we read repeat a few themes.

• Sales and scheduling. Reviewers describe knowledgeable salespeople and helpful staff arranging technicians, including for heat pump hot water jobs.
• Tidy, quick installs. Several say installers were friendly, finished on the day and cleaned up.
• Price. A recurring comment is that prices, including after government-scheme discounts, were competitive.

Common Cyanergy complaints

These are patterns in public reviews, not findings of fact about any one job. We name the platform and do not quote reviewers.

• After-sales support (ProductReview.com.au). The most common negative theme is calls and emails going unanswered once the job was paid for, and being passed between staff.
• Refunds and deposits (ProductReview.com.au). Reviewers from late 2025 and early 2026 report cancelled jobs and refunds not paid, and several say the company went into liquidation or administration. Those are reviewers’ claims, which we have not verified.
• Heat pump and air conditioner performance (ProductReview.com.au). Reports include units not reaching the set temperature, noise, and split-system condensation leaks attributed to installation.
• Warranty claims (ProductReview.com.au). One reviewer says a battery system did not switch over during outages for months; another describes a leak claim passed to a debt collector and a referral to the Victorian Energy Upgrades regulator.

We could not see consistent public responses from Cyanergy to these reviews.

About 131 of Cyanergy’s 452 ProductReview.com.au reviews were negative, roughly one in three or four.

Products and brands Cyanergy installed

Cyanergy’s website did not load when we checked in November 2026, so we could not confirm a current product list. Reviews and regulator notices point to government-scheme products, namely heat pump water heaters and split-system air conditioners (one review names Midea as the air conditioner brand), alongside solar and battery systems. Reviewers do not consistently name panel or battery brands. If you have a Cyanergy-installed product, the serial number on the unit identifies the manufacturer, which then handles its product warranty directly. We have not reviewed any Cyanergy products. For independent product assessments see our battery, inverter and solar panel reviews, and our guide to heat pump hot water rebates.

Cyanergy prices

Cyanergy’s own price pages were not available to us in November 2026, so we cannot give a published price range. ProductReview.com.au shows an average reported purchase price of A$2,775.80 across reviews, but that mixes small jobs such as hot water and air conditioning with solar, so it is not a guide to solar pricing. Heat pump and air conditioner “discounts” under schemes such as Victorian Energy Upgrades or the New South Wales Energy Savings Scheme depend on certificates created for each job; ask for the certificate value and the final price on the invoice. For current solar and battery price ranges, see our guides to solar and battery package prices and solar panel cost.

Warranty and after-sales support

Cyanergy’s workmanship warranty length is not confirmed, because we could not open its terms. In practice, a workmanship warranty is only as good as the company standing behind it, and the ESC and ProductReview.com.au report that Cyanergy is no longer operating. Product warranties on the hardware remain with the manufacturer, usually 10 or more years on solar panels and inverters and 10 years on many batteries, so contact the brand directly and keep your invoice. For installation faults, a state regulator, your licensed electrician or plumber, and your consumer protection agency are the next step. Our tracker of Australian solar company failures covers how warranties, deposits and insolvency interact.

What to do if you were a Cyanergy customer

The Essential Services Commission says customers who engaged Cyanergy, or were about to, for Victorian Energy Upgrades activities should email the appointed liquidator at cyanergy@mackaygoodwin.com.au. The commission links Consumer Affairs Victoria’s guidance on how insolvency affects consumers. Practical steps:

1. Gather your contract, invoice, deposit receipt and any correspondence.
2. Register your claim with the liquidator in writing.
3. Ask your card issuer about a chargeback if you paid by card for services not delivered.
4. Contact the product manufacturer about product warranties.
5. If a job has safety defects (for example wiring), engage a licensed electrician and report the issue to the Essential Services Commission or your state electrical safety regulator.

Company background

Cyanergy was based in Truganina, and a Google listing describes it as an LED lighting and solar business. Sources disagree on when it started (2009 and 2010 both appear). The following regulator record comes from the Essential Services Commission pages we opened on 14 November 2026.

The 2020 matter concerned certificate paperwork, and the 2026 matter concerned alleged wiring issues; these are regulator statements and allegations, not court convictions that we found. We did not find a court judgment against Cyanergy. We could not locate or open any ASIC notice for Cyanergy, so we state no liquidation date, ABN or ACN. The ESC update does not name the liquidator or firm; it gives only a contact email address for the appointed liquidator.

Solar Cobber calculation: how the two platforms compare

Google’s 4.3 and ProductReview.com.au’s 3.7 describe the same business, so we weighted them by review count: (4.3 x 980 + 3.7 x 452) / (980 + 452) = (4,214 + 1,672.4) / 1,432 = about 4.1 stars. The blended figure hides the real gap. Neither number says anything about how a refund claim will go. Our guide to the five-star problem explains why.

Cyanergy vs alternatives

Table: ProductReview.com.au ratings for Cyanergy and installers listed alongside it in that site’s comparison panel, November 2026. We did not capture review counts for the others, so check them on each listing, and verify each company’s accreditation yourself.

Cyanergy’s 3.7 sat about one star below the installers ProductReview.com.au listed beside it. To find current options near you, browse our Victorian installer directory, the top 10 in Victoria and our guide to the best solar battery installers in Melbourne.

Who Cyanergy suited, and who should look elsewhere

Cyanergy is reported as no longer operating, so there is nobody to sign with. If you were considering it for a scheme-subsidised heat pump or air conditioner, a similar offer from any other business deserves the same checks: confirm the business is accredited under the relevant scheme, ask who handles warranty claims, and never pay a large deposit for work that cannot start soon. Be wary of offers described as “free” or “government-funded”. For rebate rules, see our guides to the Victorian solar rebate, the NSW solar rebate and the federal battery rebate.

Questions to ask any installer before you sign

1. Is the business currently trading, and what is its ABN? Check it on ABN Lookup.
2. Is it on the Clean Energy Council approved retailer list (New Energy Tech Consumer Code), and are the installers on the Solar Accreditation Australia register? Check both lists yourself.
3. How much is the deposit, and what does it cover? Is it refundable if the job does not start?
4. Who honours the workmanship warranty, for how many years, and in writing?
5. If you are using a scheme discount (Victorian Energy Upgrades, Energy Savings Scheme, STCs), what is the certificate value and the final out-of-pocket price?
6. Who will do the electrical work, and will you receive a certificate of electrical safety?
7. How do I reach after-sales support, and what is the stated response time?
8. What happens to my warranty if you stop trading?

Our guides on comparing solar quotes and choosing a solar installer expand on these.

FAQ

Is Cyanergy legit?

Cyanergy Pty Ltd was a Victorian business that held a Victorian Energy Upgrades accreditation. According to an Essential Services Commission update dated 17 June 2026, the commission cancelled that accreditation following advice that Cyanergy had entered external administration and was no longer operating. The commission also took action over allegedly falsified invoices in 2020 and alleged non-compliant heat pump wiring in January 2026.

Is Cyanergy still operating?

According to the Essential Services Commission (update of 17 June 2026) and ProductReview.com.au (checked 14 November 2026), Cyanergy is no longer operating. The commission refers to an appointed liquidator. Its website may remain online, so check with the liquidator before relying on anything it says.

What are the most common Cyanergy complaints?

The most common complaints are unanswered calls and emails after installation, refunds and deposits not returned, and warranty problems with heat pumps, air conditioners and one battery system. These are patterns across public ProductReview.com.au reviews, not findings about every job. Praise for friendly staff and tidy installs also appears.

What rating does Cyanergy have?

Cyanergy has 3.7 out of 5 from 452 reviews on ProductReview.com.au and about 4.3 out of 5 from roughly 980 reviews on Google, both as at November 2026. The 3.7 includes some recent reviews about unpaid refunds and the reported closure.

What happens to my warranty if Cyanergy has closed?

Your manufacturer warranty on the hardware is unaffected, because it is held by the brand, but Cyanergy’s own workmanship warranty depends on whether anyone is standing behind it, which you can ask the liquidator. Contact the manufacturer with your invoice and serial numbers, and register a claim with the liquidator. If there is a safety problem, call a licensed electrician.

How do I contact the Cyanergy liquidator?

The Essential Services Commission’s update of 17 June 2026 gives cyanergy@mackaygoodwin.com.au as the contact for customers who engaged Cyanergy for Victorian Energy Upgrades activities. We could not open an ASIC notice to confirm the liquidator’s identity, so also check the ASIC published notices register using the company’s name.

Was Cyanergy ever penalised by a regulator?

The Essential Services Commission took action, and we found no court judgment. In June 2020 it issued a warning and required an independent audit after Cyanergy had allegedly submitted falsified installation invoices, and on 30 January 2026 it restricted Cyanergy’s heat pump water heater upgrades for six weeks over alleged non-compliant wiring by contractors.

Does Cyanergy offer solar installation in NSW?

Our directory has a “Cyanergy NSW” listing, but the regulator records we opened concern a Victorian business, which is reported as no longer operating. For current NSW options see our installer directory.

Sources

• Essential Services Commission: Liquidator appointed for Victorian Energy Upgrades accredited business, Cyanergy (updated 17 June 2026)
• Essential Services Commission: Action taken against Cyanergy Pty Ltd (30 January 2026)
• Essential Services Commission: Cyanergy compliance breach 2020 (11 June 2020)
• ProductReview.com.au: Cyanergy reviews (checked November 2026)
• Google Maps listing for Cyanergy, Truganina VIC (checked November 2026)

About this guide

This guide was written by the Solar Cobber editorial team from independent desk research checked in November 2026. We did not contact Cyanergy or its liquidator and have no commercial relationship with them. Solar Cobber is a free directory that may earn referral or advertising fees from installers, but commercial relationships never affect our content. This is general information, not financial or legal advice. To report a correction, contact us.