Policy and the record
Four bodies decide your power bill, and the one that pays for your solar is not among them
Four acronyms turn up constantly in energy coverage, including ours: AEMC, AER, AEMO and CER. They are not interchangeable, and the difference decides who you go to when something is wrong. The part worth knowing: only three of them are energy market bodies, and the missing one is the body behind your solar rebate.
If you have ever tried to work out who to complain to about a power bill, or who decided that
your solar exports are worth what they are worth, you have run into this. Energy coverage names
these bodies without saying what they do, and the names are close enough to be useless as a
guide: two of them contain Australian Energy
and a third contains Energy Regulator
while doing something entirely different.
Who does what, in each body’s own words
| AEMC | The Australian Energy Market Commission. Its own page says it is the expert energy
policy adviser to Australian governments and that We make and revise the energy rules and provide advice. If a rule about your meter, your exports or your connection changes, this is where it changed. |
|---|---|
| AER | The Australian Energy Regulator, which describes itself as an independent regulator of gas and electricity markets in Australia. The AEMC’s governance page puts it more narrowly: the AER is the regulator of the wholesale electricity and gas markets in Australia. This is the body that sets the Default Market Offer, below. |
| AEMO | The Australian Energy Market Operator. Not a regulator at all. Its responsibilities are listed as market operation and administration of the procedures for the energy markets, operation of the electricity power system, and coordination of the strategic development of the national electricity grid. It keeps the lights on; it does not set prices or write rules. |
| CER | The Clean Energy Regulator, which says We are an economic regulator accelerating carbon abatement for Australia. It administers the scheme behind rooftop solar and battery incentives. It is not one of the energy market bodies. |
Three bodies, created deliberately, and a fourth from somewhere else
The AEMC’s own account of national energy governance is precise about this. A new
governance structure was created including three market bodies, to oversee the nation’s
energy market
. The AEMC and the AER were both created in 2005; AEMO was created in 2009 and
took over gas and electricity market operation, replacing NEMMCO, which had run the national
market from 1998.
Three bodies: a rule-maker, a regulator, an operator. That is the whole energy-market structure, and it is a sensible split.
The Clean Energy Regulator is not part of it. It was not created to oversee the energy market, and it does not. It exists to administer Australian Government carbon and renewable schemes, and one of those schemes is the reason a solar installer can quote you a price with the rebate already taken off.
Why that matters to a household
Because it explains something that otherwise looks like disorganisation. The body that influences what you pay per kilowatt hour and the body that subsidises the equipment on your roof sit in different systems, with different purposes, answering to different objectives. Nobody is coordinating your bill and your rebate as a single thing, because structurally they are not a single thing.
The Small-scale Renewable Energy Scheme is the CER’s, and its page states that
It provides incentives to households and businesses to install small-scale renewable energy
systems like rooftop solar, solar batteries, solar water heaters and air sourced heat pumps
.
That is four of the biggest electrification decisions a household makes, all administered by the
body that has nothing to do with your tariff.
The one number the AER sets that you can look up
The Default Market Offer is the most directly useful thing on this page. The AER’s own
description: The Default Market Offer (DMO) is an electricity price set by the Australian
Energy Regulator
, and It is the maximum price that retailers can charge residential and
small business customers on a standing offer contract for electricity
.
Two things follow that people get wrong. It is a cap on standing offers, not
a price you are on and not a cap on market offers, and the AER also describes it as acting as a
comparison price
, which is how it is meant to be used: check your plan against it.
And it does not cover everyone. The AER states that It applies to households and small
businesses in South Australia, New South Wales, and South East Queensland
. If you are in
Victoria, regional Queensland, Western Australia, Tasmania or the Northern Territory, the DMO is
not your benchmark, and a national headline about it may not describe your bill at all.
So who do you go to
As a rough guide, and it is a guide rather than a rule: a dispute with your retailer or a question about the DMO points at the AER; a complaint about how the market operates points at AEMO; a view about whether a rule should change points at the AEMC, which runs a public rule change process; and anything about certificates for solar, batteries, solar hot water or heat pumps points at the CER. For an individual billing dispute the practical first stop is usually your state or territory energy ombudsman rather than any of the four, and we have not set out those schemes here.
What this page is, and is not
This is a map of who does what, read from each body’s own published pages on 24 August 2026. It is not legal advice and it is not a complaints procedure. We have deliberately not described the state and territory regulators, the energy ombudsman schemes, or Victoria’s separate arrangements, each of which would need its own treatment; the DMO section above says only what the AER’s page says about where the DMO applies. The characterisation of the Clean Energy Regulator as sitting outside the three-body energy market structure is drawn directly from the AEMC’s statement that the structure comprises three market bodies and from the CER’s own description of its purpose; the framing of why that matters to a household is ours, and is offered as such. We hold no commercial relationship with any electricity retailer, network, installer or government body.
Sources
- Australian Energy Market Commission, National energy governance (read 24 August 2026): the AEMC’s description of itself as the expert energy policy adviser that makes and revises the energy rules, the creation of a governance structure comprising three market bodies, the 2005 creation of the AEMC and the AER, the 2009 creation of AEMO and its predecessor NEMMCO operating the national market from 1998, the description of the AER as regulator of the wholesale electricity and gas markets, and AEMO’s listed responsibilities for market operation, power system operation and coordination of strategic grid development.
- Australian Energy Regulator, About us (read 24 August 2026): the AER’s description of itself as an independent regulator of gas and electricity markets in Australia.
- Australian Energy Regulator, The Default Market Offer (read 24 August 2026): that the DMO is an electricity price set by the AER, that it is the maximum price retailers can charge residential and small business customers on a standing offer contract, that it acts as a comparison price, and that it applies to households and small businesses in South Australia, New South Wales and South East Queensland.
- Clean Energy Regulator, About us (read 24 August 2026): the CER’s description of itself as an economic regulator accelerating carbon abatement for Australia, administering Australian Government schemes.
- Clean Energy Regulator, Small-scale Renewable Energy Scheme (read 24 August 2026): that the scheme is an Australian Government initiative encouraging investment in small-scale renewable energy, and that it provides incentives to households and businesses to install systems including rooftop solar, solar batteries, solar water heaters and air sourced heat pumps.
Spotted an error, or has a body changed what it does? Tell us and we will check it against the source pages and log the outcome here.