AWM Electrical belongs to the Metal Manufactures group; Greentech is its renewables arm. What a local wholesaler does for an installer and your warranty.
AWM Electrical is one of the trading names of Metal Manufactures Limited, an Australian electrical wholesaler that has been operating since 1916, and Greentech is the renewables division of the same group. For a solar and battery installer in Central Victoria, a wholesaler like this is the link between the manufacturer and your roof: it holds the stock, gets parts to site, and is part of the chain a warranty claim travels through. This article explains what that link does and why it matters to you as the owner of the system, even though you will never deal with the wholesaler yourself.
Who AWM Electrical and Greentech are
Metal Manufactures trades under several names: MM Electrical Merchandising (MMEM), AWM Electrical, D&W Electrical, Haymans Electrical and TLE Electrical, known together as the MMEM group. Its own profile describes it as one of Australia's largest electrical and data wholesalers, with more than 1,500 staff and over 125,000 products on permanent catalogue, from cable and switchgear to lighting, data, tools and safety gear. The head office is in North Rocks, New South Wales.
Greentech is the group's solar and renewable energy division. It describes itself as Australia's largest wholesaler network of solar and renewable energy specialists, with accredited stores across Australia that stock the major brands of solar panels, inverters, batteries and EV chargers. When iStore, the heat pump hot water maker, signed a national supply partnership with Greentech in May 2024, it described Greentech as a one stop shop for installers.
The AWM branch that serves the Bendigo region is the one that matters most to a Central Victorian installer.
What a wholesaler actually does for an installer
An electrician does not buy from the manufacturer in China or Austria. Panels, inverters and batteries come into Australia through the manufacturer's Australian office or an importer and distributor, and reach installers through wholesalers. The wholesaler does five jobs that you never see.
- Stock close to the job. A battery module, an isolator, a run of DC cable or a replacement breaker can be on a shelf in the region instead of on a truck from interstate.
- A trade counter. When a job turns up something unexpected, an old switchboard that needs a new main switch or a meter box that needs replacing, the part can be picked up the same day.
- Credit and delivery. A trade account lets an installer order a whole system and pay on terms, and the wholesaler delivers the heavy items to the shed or straight to site.
- Product knowledge and training. Renewables wholesalers run supplier training and carry the technical contacts for each brand.
- The first step of a warranty return. When a part fails, the replacement and the return often go back through the counter it came from.
Why buying local matters in regional Victoria
For a home in Woodend or a farm near Malmsbury, the difference between a wholesaler in the region and one interstate shows up on the bad days, not the good ones.
- A battery that stops working in winter can be swapped from local stock, not ordered and freighted.
- Heavy gear, like battery modules and stacks of panels, travels a shorter distance with fewer handling points, which means less risk of a cracked panel or a dropped module.
- A wholesaler that knows the area knows what the local network and the local roofs need.
- Money spent stays in regional Victoria, with people who live here.
None of that makes a local wholesaler the cheapest on every line. Online and interstate suppliers sometimes beat them on price for a single product. What the local counter sells is speed, certainty and someone to talk to when a delivery arrives damaged.
How a warranty claim travels
This is the part that does matter to you. Under Australian Consumer Law your claim is with the business that sold you the system, which for most homes is the installer. SolarQuotes puts it plainly: an installer cannot simply send you to the manufacturer and wash its hands of the problem. The installer either gets the manufacturer to honour its warranty or fixes the problem itself.
Behind the scenes the chain usually runs like this:
- You report the fault to your installer, in writing if you can, as Solar Victoria recommends.
- The installer diagnoses it, often remotely through the monitoring app, and lodges the claim with the manufacturer's Australian office.
- The replacement part comes back through the distributor or wholesaler.
- The installer fits it and checks the system.
If a manufacturer has no Australian office, the importer of the product carries the responsibility. That is one reason to prefer brands with a local office, and why a wholesaler that stocks a brand in depth is a good sign the brand is here to stay.
Retailers in Victoria's Solar Homes Program must also sign the New Energy Tech Consumer Code, which sets higher standards for warranties, complaints and support than the law alone. If you cannot resolve a problem with the business, Consumer Affairs Victoria takes complaints.
What this means when you get a quote
You do not need to know which wholesaler your installer uses. You do need to know three things, and a good installer will answer them without hesitation.
- Which brands are in the quote, and do they have an Australian office?
- Who do you ring if something stops working, and how quickly can a part be on site?
- Does the installer keep the system online so faults show up before you notice them?
We design, install and service our systems ourselves with our own staff, so the answer to the second question is us. If you would like to talk through a system with gear that is supported here, see our brands page, or send us a recent bill and your address through our contact page and we will come back with a design.
Questions
Who owns AWM Electrical?
AWM Electrical is a trading name of Metal Manufactures Limited, which also trades as MM Electrical Merchandising (MMEM), D&W Electrical, Haymans Electrical and TLE Electrical. The group has been operating since 1916.
What is Greentech?
Greentech is the renewable energy division of MM Electrical Merchandising. It runs a network of accredited stores that stock solar panels, inverters, batteries, EV chargers and mounting systems for installers.
Can I buy solar panels from AWM or Greentech myself?
They are trade wholesalers that supply electricians and installers. The parts are only part of a system: the design, the installation, the grid approval and the warranty chain all sit with the installer, so for a home system it makes sense to buy the whole job from one business.
If my battery fails, do I contact the manufacturer or the installer?
Start with your installer, in writing. Under Australian Consumer Law the business that sold you the system is responsible for sorting it out, either through the manufacturer's warranty or by fixing it itself. If the installer has closed, contact the manufacturer's Australian office.
Sources
- MM Electrical Merchandising, supplier profile (Industry Capability Network gateway)
- iStore partners with Greentech, Australia's premier renewable energy wholesaler (Smart Energy Council, 7 May 2024)
- 10 little understood facts about Australian Consumer Law and solar (SolarQuotes, updated 25 January 2024)
- Solar Victoria, buyers guide section 9: consumer protections when buying a solar panel system
Written by the Trentham Energy team.





