The problem the government was trying to solve
State governments across Australia needed to hit energy efficiency targets. The obvious solution — just tell everyone to upgrade their lighting — doesn't actually work. You can't force a business to spend money on new fittings, and the government isn't going to pay for it directly either.
So they came up with something more creative: make the electricity retailers pay for it.
The logic goes like this. Retailers sell electricity. They're profitable businesses. The government gives them an annual obligation — you must prove that energy efficiency improvements worth X amount were made in your state this year. If you can't prove it, you pay a penalty. The penalty is deliberately set high enough that it's cheaper to just fund the upgrades.
The retailers don't install LED fittings themselves — they buy proof that someone else did. That proof comes in the form of certificates. One certificate equals a set amount of energy saved. The more lights that get upgraded, the more certificates get created, the more the retailer's obligation gets satisfied.
And the installers who do the upgrades? They create the certificates and sell them. That income is what funds the "free" fitting you were offered.
The cast of characters — simply
The scheme is funded by a small levy on every electricity bill in the state — residential and commercial. So technically, your neighbours and every other business are contributing to the fund that paid for your new lights. That's the whole point. It's a collective mechanism that rewards the businesses that actually do the upgrade.
If you haven't done an upgrade yet, you've been funding everyone else's. Something to keep in mind.
How certificates are created — the formula in plain English
When an accredited installer replaces your old fittings with LED, they don't just take your word for it that energy was saved. They calculate a deemed saving — a standardised figure based on how much power was reduced, how many hours a day lights like yours are typically run, and how many years the improvement is expected to last.
Think of it like this: imagine the government saying "we'll assume a commercial office light runs 11 hours a day, 250 days a year, for 10 years." That assumption gets applied to every office upgrade in the scheme — regardless of whether your office actually runs those hours. The formula spits out a lifetime energy saving figure, that figure gets converted into certificates, and the installer sells them.
On a 50-fitting warehouse, that's $12,500–$20,000 in certificate value — which is why an installer can afford to supply and install fittings for free and still make a margin. The certificate income is their business model.
This also explains why the installer cares so much about the wattage reduction number. Bigger reduction = more certificates = more income. It's why some installers push hard for a particular LED wattage spec — not because it's the right product for your space, but because it maximises their certificate count.
The three schemes: NSW, VIC and SA
Queensland, WA, Tasmania, ACT and NT don't have equivalent statewide commercial LED rebate schemes. Businesses in those states rely purely on the energy saving itself for ROI — which still stacks up well in WA and QLD given their tariffs and high operating hours.
How the installer makes money — and why most get it right
Here's how the installer's business model works, because understanding it helps you have a better conversation with whoever is quoting the job.
The installer buys LED fittings from a distributor at trade price. They install them, file the paperwork to create certificates, then sell those certificates to a retailer or more commonly to a certificate broker or aggregator — a middleman who buys in bulk and on-sells to retailers. The broker takes a cut; the installer gets paid.
The installer's margin is: certificate income minus (cost of fittings + labour + broker cut). A well-run operation makes a reasonable margin by doing quality work efficiently. Most accredited installers operating under these schemes are licensed electricians running legitimate businesses — the accreditation process, paperwork requirements and audit risk are genuine barriers to entry that weed out fly-by-nighters.
That said, the economics of any scheme create pressures worth being aware of. When certificate prices drop or a job takes longer than planned, margins compress. And because certificate income is linked to the number of fittings completed, there's a natural incentive to work efficiently — which for most installers means getting the job done properly and moving on, but in a small number of cases can mean favouring faster install methods over the best long-term outcome for the building.
The schemes set minimum product standards — approved product lists, minimum efficacy ratings, required warranties. These are the floor, not the target. A fitting that just meets the minimum generates the same certificate count as one that comfortably exceeds it.
A good installer will spec above the minimum because their reputation depends on it. But it's always worth asking what specifically is going in — model number, lumen output, driver brand — so you can make an informed comparison rather than just accepting whatever's in the van.
What you should actually do with this information
In NSW, VIC or SA — use the scheme. The economics are real and the savings are genuine. Free or subsidised fittings with lower electricity bills is a legitimately good outcome. The scheme delivers what it promises when the job is done properly.
Get the fitting spec in writing before work starts. Ask for the brand, model number and lumen output of the specific fitting being installed. Check it against the approved product list for the relevant scheme. If the installer is reluctant to specify in writing, that's telling.
Ask how the installer is being paid. Are they billing you directly (and the certificate value reduces your invoice), or is the whole job funded purely through certificates with zero charge to you? Both models are completely legitimate — knowing which one you're on just helps you understand the conversation you're having.
Check the deemed hours against your actual usage. If the scheme assumes your lights run 4,000 hours a year and your facility actually runs 6,000 hours, your actual energy saving is bigger than what the certificate calculation captured — which means the ROI on your side is even better than the installer's paperwork suggests. Run your own numbers.
Get the warranty in writing and check the fine print. Scheme-funded installs often come with a warranty backed by the installer's business rather than the manufacturer. If the installer closes, so does that warranty. Ask specifically: who do you call in year three, and who covers it?
The bottom line
These schemes work. They've funded hundreds of thousands of LED upgrades across Australia and the energy savings are real. The mechanism is genuinely clever — it turns an electricity retailer's penalty obligation into a funding stream for building owners who'd otherwise never prioritise a lighting upgrade.
The catch is that "funded by a scheme" doesn't automatically mean "installed well." The certificate economy creates incentives that don't always align with giving you the best possible result. Go in with your eyes open, ask the right questions, and you'll end up with quality fittings, lower bills, and a payback period that's shorter than you'd get without the scheme.
Most installers working under these schemes are running proper businesses with their accreditation and reputation on the line — but like any industry, the quality of operators varies. A few good questions upfront costs nothing and means everyone's on the same page before the job starts.