Current figures, last updated 2026-06-12
DMO: set by the AER for NSW, south-east QLD and SA; reset annually.
VDO: set by the Essential Services Commission for Victoria.
2025 change: reference prices rose in several regions [verify: AER / ESC final determination figures].
Outside the cap: WA (Synergy) and NT (Power and Water) have no DMO and no retail competition.
Sources: Australian Energy Regulator (AER); Essential Services Commission (VIC).
The headline is about the cap, not you
When you read "electricity bills could rise by \$200", that figure almost always describes a change to the reference price, the DMO or VDO, not to your specific plan. The reference price is a regulated ceiling for standing offers and a benchmark for everything else. Most engaged customers are on market offers priced below it. So a movement in the cap tells you how the safety net has shifted; it does not tell you what will happen to a competitive plan you actively chose.
The cleanest way to picture it: the reference price is the recommended retail price on a shelf tag. Plenty of people pay less than the tag, some pay it, and the worst-positioned pay around it by default. When the tag goes up, the question is not "how much more will everyone pay" but "where do I sit relative to the tag, and has that changed".
Why the coverage misleads
Price-change reporting collapses a complex, state-by-state, plan-by-plan reality into one scary national number. It treats the DMO as the price everyone pays, when its real job is to protect disengaged customers and anchor comparison. By reporting the cap as a fate, the coverage encourages exactly the wrong response: resignation. People brace for the increase instead of checking whether it even applies to them.
It also flattens geography. The DMO covers NSW, south-east Queensland and South Australia; Victoria has its own VDO; and WA and the NT sit outside the whole framework with no competition at all. A single "Australian bills will rise" headline is wrong for millions of households the moment you ask where they live.
How the reference price actually works
A ceiling and an anchor, not a market price
The DMO and VDO do two jobs. As a ceiling, they cap what retailers can charge on standing offers, protecting customers who never engage. As an anchor, they give every market offer a common reference, so a "10% below reference" claim has a fixed meaning. Neither job makes the reference price the thing most people pay. It is the line that competitive offers are designed to sit under.
Why it rises, and what that signals
The reference price reflects underlying costs: wholesale energy, network charges, and retail costs. When the regulator lifts it, that signals those underlying costs have risen, which does put genuine upward pressure across the market. But pressure is not the same as your outcome. A rising cap is the moment competitive offers and stale plans diverge most, because retailers reprice around the new benchmark and the gap between a sharp plan and a lazy one widens.
Who actually absorbs the rise
The households that feel the full increase are the ones already sitting near the cap: standing-offer customers, and market-offer customers whose introductory benefit lapsed and whose rate quietly reset upward. They are positioned to absorb the rise in full. Customers on a current, competitive market offer have the most room to respond, often offsetting the rise entirely by recomparing.
The benchmark, region by region
Which reference applies, and whether you can act on it, depends entirely on where you live.
| Region | Reference price | Set by | Can you switch retailer? |
|---|---|---|---|
| NSW | DMO | AER | Yes |
| South-east QLD | DMO | AER | Yes |
| SA | DMO | AER | Yes |
| VIC | VDO | ESC (VIC) | Yes |
| ACT | Regulated reference | ICRC | Yes |
| WA | No DMO | State (Synergy) | No |
| NT | No DMO | State (Power and Water) | No |
Tasmania has its own regulated arrangements. Regional Queensland is also regulated separately from the south-east.
Where do you sit against the benchmark?
Enter your current annual electricity cost and the reference price for your area (from your bill or a neutral comparison tool) to see your gap. A negative gap means you are below the cap; a positive one means you are exposed to the rise. The worked example uses the defaults.
Your position
$200 above the benchmark
You're paying more than the regulated reference. A competitive market offer should beat this.
Compares your stated annual cost to the reference price you enter. Indicative only, not a quote.
Worked example: if you pay $2,100/year and the reference price is $1,900, you are about $200 above the benchmark, the position most exposed to a price rise and the easiest to improve by switching.
How households lose out at reset time
The damage is done by interpretation. A household reads "bills will rise", assumes it is unavoidable, and does nothing, when it may have been on a plan that already sat above the new benchmark and could have been beaten. The headline that was meant to inform instead induces passivity, and passivity is exactly what leaves customers parked near the cap.
The reset is also when "set and forget" quietly fails. Plans chosen a year or two ago, once competitive, drift as benefits lapse and rates reset around each new benchmark. The annual price change is the natural moment to catch that drift, and the moment most people use to brace rather than to check.
The insider detail: the reset is a repricing event
Behind the scenes, a DMO or VDO change is not just a new cap; it is the cue for retailers to reprice their whole book of market offers around the new anchor. New and sharp offers cluster below the benchmark to look competitive, while older plans are allowed to drift up toward it. That means the gap between the best available offer and your existing plan is usually widest right after a reset. The annual price rise that the headlines treat as bad news is, for an engaged customer, the single best moment of the year to capture a saving, because the market has just re-sorted itself and the lazy-plan penalty is at its peak.
What to actually do
Treat the price-change announcement as a calendar reminder, not a verdict. Find your current annual cost, find the new reference price for your area, and work out your gap. If you are sitting at or above the benchmark, you are exactly the customer the rise targets, and recomparing against a neutral tool will usually find a market offer that offsets or beats the increase.
Check which region you are in before assuming anything: the DMO covers NSW, south-east Queensland and SA, Victoria has the VDO, and WA and the NT have no cap and no competition, so there the only lever is reducing usage. Everywhere the cap applies, the rise is a signal to act, and acting is what turns a headline increase into someone else's problem.
Why this matters now
With underlying network and wholesale costs under sustained pressure and temporary federal bill relief tapering off, reference prices are more likely to keep drifting up than down. That makes the annual reset an increasingly important decision point, not a passive one. The households that learn to read the cap as a signal will keep beating it. The ones who read it as a sentence will keep paying it.
Frequently Asked Questions
What is the Default Market Offer (DMO)?
The DMO is a reference price set each year by the Australian Energy Regulator for New South Wales, south-east Queensland and South Australia. It caps standing offers and acts as a benchmark to compare market offers against. It is a safety net and a yardstick, not the price every customer pays.
What is the Victorian Default Offer (VDO)?
The VDO is Victoria's equivalent of the DMO, set by the Essential Services Commission. It plays the same role for Victorian customers: a regulated reference and cap that market offers are measured against.
Does a higher DMO mean my bill must go up?
Not automatically. If you are on a competitive market offer below the reference price, a DMO rise is a prompt to recompare, not a guaranteed increase. The customers most exposed to the rise are those sitting on standing offers or stale plans near the cap.
Who is most affected when prices change?
Customers on standing offers, and those whose market plan has drifted upward after an introductory benefit ended. They sit closest to the reference price, so they feel the full force of a rise. Engaged customers on sharp market offers feel far less.
How do I avoid paying more after a price change?
Treat the announcement as a trigger to compare your plan against the new reference price using a neutral tool. If your plan is now near or above the benchmark, switching to a competitive offer can offset or beat the increase. In WA and the NT there is no retail competition, so the lever is usage rather than switching.