The Australian Energy Regulator (AER) today released its final Default Market Offer (DMO 8) determination for 2026–27, setting new benchmark electricity prices for households and small businesses across New South Wales, South East Queensland and South Australia from 1 July 2026.
Residential flat rate standing offer prices will fall by between 3.4% and 7.2% across NSW and South East Queensland. South Australia is the exception — flat rate residential prices will rise by 1.4%, an increase of approximately $33 per year. However, all time-of-use customers in all regions — including SA — will see price reductions.
This is the first DMO determination under the Albanese Government's reformed DMO framework, which applies new methodology to calculate standing offer prices. The determination also introduces tariff caps for the first time and cements the new Solar Sharer Offer, which gives eligible households three hours of free daytime electricity.
Approximately 463,000 households (around 8% of residential customers) remain on standing offers. The AER stresses the DMO is not intended to be a competitive market offer — market offers from retailers are typically up to 20% below the DMO reference price.
Is your current plan still competitive after July 1?
Compare plans at your address — market offers are typically up to 20% below the DMO.
NSW (Essential)
-$137
per year
-5.0% flat rate
SE QLD (Energex)
-$155
per year
-7.2% flat rate
NSW (Ausgrid)
-$66
per year
-3.4% flat rate
SA
+$33
per year
+1.4% flat rate
Flat rate standing offer prices — where customers pay the same rate for electricity at all times — fall in NSW and SE Queensland but rise slightly in South Australia. The table below shows the confirmed annual reference prices for each distribution zone.
| State / Zone | DMO 8 (2026–27) | DMO 7 (2025–26) | Change | Annual difference |
|---|---|---|---|---|
| NSW — Ausgrid (Sydney, Central Coast, Hunter) | $1,899 | $1,965 | -3.4% | -$66 |
| NSW — Endeavour (SW Sydney, Blue Mountains, Illawarra) | $2,328 | $2,411 | -3.4% | -$83 |
| NSW — Essential (Regional NSW) | $2,604 | $2,741 | -5.0% | -$137 |
| SE QLD — Energex | $1,988 | $2,143 | -7.2% | -$155 |
| SA — SA Power Networks | $2,334 | $2,301 | +1.4% | +$33 |
Source: AER Final DMO 8 Determination, 26 May 2026. Annual reference prices for representative residential flat rate customers. Actual bills vary by usage.
Time-of-use customers — who pay different rates depending on when they use electricity — see price reductions in all regions including South Australia. The largest TOU savings are in SE Queensland (-10.7%, saving $229/yr) and NSW Essential Energy zone (-7.7%, saving $211/yr).
| State / Zone | TOU change | Annual saving |
|---|---|---|
| NSW — Ausgrid | -3.7% | $72 |
| NSW — Endeavour | -3.8% | $91 |
| NSW — Essential | -7.7% | $211 |
| SE QLD — Energex | -10.7% | $229 |
| SA — SA Power Networks | -1.1% | $25 |
Source: AER Final DMO 8 Determination, 26 May 2026.
SA flat rate vs time-of-use
South Australia is the only region where flat rate and time-of-use price changes diverge. SA flat rate increases +1.4% ($33/yr) while TOU decreases -1.1% ($25/yr). SA households with smart meters may benefit from switching to a time-of-use tariff or the new Solar Sharer Offer.
Small business customers see significantly larger reductions than residential customers. The biggest savings are in NSW's Essential Energy zone, where time-of-use small business prices drop 20.9% — saving up to $1,303 per year. Flat rate small business prices fall between 6.8% and 11.3% across all regions.
| State / Zone | Flat rate change | TOU change | TOU saving |
|---|---|---|---|
| NSW — Ausgrid | -6.8% | -9.4% | up to $449 |
| NSW — Endeavour | -8.2% | -14.7% | up to $670 |
| NSW — Essential | -11.3% | -20.9% | up to $1,303 |
| SE QLD — Energex | -10.4% | -10.4% | up to $445 |
| SA — SA Power Networks | varies | -12.1% | up to $673 |
Source: AER Final DMO 8 Determination, 26 May 2026. Small business figures based on representative annual consumption.
Network charges — which account for roughly 39% to 54% of typical DMO costs — have actually increased across much of the National Electricity Market. But wholesale electricity costs have fallen enough to more than offset that rise in most regions.
“The reductions compared to last year reflect easing costs across most components of the DMO, particularly in wholesale energy, where we've seen lower electricity contract prices, reduced spot price volatility, and increased output from wind and battery generation during evening peaks. Despite uncertainty created by conflict in the Middle East, wholesale energy costs have not increased.”
— Clare Savage, AER Chair
According to the AER, wholesale costs fell by between 2% and 14% for the coming financial year, driven by:
Environmental scheme costs also fell sharply, while retailer operating costs eased compared to previous years.
South Australia remains more exposed to network cost increases, which is why it is the only region where flat rate residential prices rise. Federal Energy Minister Chris Bowen highlighted batteries as key to the broader price reductions:
“We're seeing batteries working to what we call flatten the peak. So the biggest pressure on prices is in the night time when coal and gas are called upon more. When we're calling on batteries more, which has saved the renewables from the middle of the day for the night, that is really putting very significant down pressure on prices.”
— Chris Bowen, Federal Energy Minister
The AER has also adjusted its methodology for DMO 8, adopting a blended network cost approach that reflects the mix of older legacy meters and newer smart meters across the population. This change, part of the reformed DMO framework, aligns with the rollout of smart meters targeted for full implementation by 2030.
The Default Market Offer (DMO) is the maximum annual price a retailer can charge a customer on a standing offer. It was introduced on 1 July 2019 following the ACCC's Retail Electricity Pricing Inquiry, which found standing offer customers were paying significantly more than necessary. The DMO serves two functions:
The DMO resets every 1 July and applies to NSW (Ausgrid, Endeavour Energy, Essential Energy), South East Queensland (Energex), and South Australia (SA Power Networks). Victoria has a separate equivalent — the Victorian Default Offer (VDO) — set by the Essential Services Commission.
Source: AER DMO 8 cost-stack analysis. Proportions vary by zone.
The DMO directly sets prices for the approximately 463,000 households (~8% of residential customers) in DMO regions who remain on standing offers. These are typically customers who have never actively chosen a plan or switched providers.
However, the DMO also has an indirect effect on the broader market. Because it serves as the reference price, it influences how retailers price and advertise their market offers. When the DMO changes, retailers typically adjust their market offers — though not always by the same amount or at the same time.
Your prices change automatically on 1 July 2026. In NSW and SE QLD, prices decrease. In SA on flat rate, prices increase slightly. Either way, you are paying the maximum regulated price — switching to a market offer could save you up to 20% more.
Your rates are not automatically adjusted by the DMO. Your retailer sets your rates independently. AER Chair Clare Savage advises: “Once new prices take effect in July, it will be worth exploring which retailers offer further discounts off the DMO or new energy plans that better suit individual circumstances.”
Under AER rules, retailers are required to notify customers at least once every 100 days if they could be on a better plan. This information should appear on the first page of your electricity bill.
The DMO has been in effect since 1 July 2019. The table below shows the trajectory of each determination. The 2022–24 period saw the largest increases in the DMO's history, driven by the global energy crisis. DMO 8 is the first determination under the reformed framework.
| Determination | Direction | Context |
|---|---|---|
| DMO 1 (2019–20) | First determination | Introduced as a cap on standing offers after the ACCC Retail Electricity Pricing Inquiry. |
| DMO 2 (2020–21) | Decrease | Modest reductions as wholesale costs eased. COVID-19 reduced commercial demand. |
| DMO 3 (2021–22) | Decrease | Continued downward trend. Wholesale market remained soft. |
| DMO 4 (2022–23) | Increase | Sharp increase (up to 18.3%) driven by global energy crisis — coal and gas price spikes following the Russia–Ukraine conflict. |
| DMO 5 (2023–24) | Increase | Further increases (up to 25%) as elevated wholesale costs flowed through. Largest single-year DMO increase. |
| DMO 6 (2024–25) | Mixed | Slight decrease in some zones as wholesale costs began to ease, but network cost increases partially offset gains. |
| DMO 7 (2025–26) | Increase | Modest increases across most zones. Network cost pressures continued. |
| DMO 8 (2026–27) | Decrease | First determination under reformed DMO framework. Flat rate prices fall 3.4–7.2% in NSW/QLD; SA flat rate rises 1.4%. Introduces tariff caps and Solar Sharer Offer. |
The DMO 8 determination cements the Solar Sharer Offer (SSO) — a new regulated tariff that gives households access to three hours of free daytime electricity. Retailers with more than 1,000 customers are required to offer it from 1 July 2026.
NSW & QLD
11am–2pm
Free window
SA
12pm–3pm
Free window
Daily cap
24 kWh
Free usage limit
Eligibility
Smart meter
Renters, no solar needed
The SSO is priced the same as the DMO time-of-use tariff, with normal TOU rates applying outside the free window. It encourages households to shift electricity use into the middle of the day when rooftop solar generation is abundant and wholesale prices are often extremely low or negative.
Households that consume most of their electricity in the evening peak (5–9 pm) and cannot shift usage to midday may pay more than on a flat rate plan, since TOU rates outside the free window are higher than flat rates.
DMO 8 introduces tariff caps for the first time. Previous DMO determinations only capped annual bills. The new caps also limit maximum daily supply charges and usage rates — not just the total annual price. This makes it easier for households to compare plans line-by-line across flat rate, time-of-use, and Solar Sharer offers.
The DMO only covers NSW, South East Queensland and South Australia. Other states and territories have separate regulatory frameworks:
The Essential Services Commission announced the Victorian Default Offer (VDO) on 25 May 2026, confirming an average 5% reduction for households and ~6% for small businesses across all five distribution zones. Average household saving: approximately $84/year.
Compare VIC plans →WA operates outside the NEM. Synergy tariffs are set by the WA Government — the AER does not determine prices in WA. There is no retail competition for most Perth households.
WA electricity info →Aurora Energy tariffs are regulated by the Tasmanian Economic Regulator. Tasmania benefits from hydroelectric generation and has some of the lowest average bills nationally.
Compare TAS plans →Regulated by the Independent Competition and Regulatory Commission (ICRC). The ACT has its own price determination process and a competitive retail market with 12+ retailers.
Compare ACT plans →No. The determination is now final and retailers have pricing certainty. AER Chair Clare Savage said: “Once new prices take effect in July, it will be worth exploring which retailers offer further discounts off the DMO or new energy plans that better suit individual circumstances.”
If you're on a standing offer, you are paying the maximum regulated price. Switching to a market offer could save up to 20% beyond the DMO. Most residential plans have no exit fees, switching takes minutes, and there is no interruption to your electricity supply.
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All figures in this article are sourced from the AER's Final Determination — Default Market Offer Prices 2026–27 (DMO 8), published 26 May 2026, and verified against reporting by Finder, SolarQuotes, and RenewEconomy. The determination is available on the AER website.
Annual reference prices represent the estimated annual cost for a representative customer in each distribution zone, as defined by the AER. Flat rate prices are based on a single usage rate at all times. Time-of-use prices are based on peak, off-peak, and shoulder rates with typical usage patterns.
Percentage changes and dollar figures compare DMO 8 (2026–27) to DMO 7 (2025–26) for the same zone and tariff type. Actual bill impacts vary by individual usage, tariff type, controlled load arrangements, and retailer pricing.
AER Chair quotes are attributed to Clare Savage from the AER's DMO 8 media release and press conference, 26 May 2026. Energy Minister quotes attributed to Chris Bowen from media appearances on 26 May 2026.
EnergyPlans is an independent energy comparison platform. We are not the AER, not a retailer, and not an official government source. For the official determination, refer to the AER's published documents.
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