The Australian Energy Regulator (AER) has finalised the Default Market Offer (DMO) for the 2026-27 financial year, confirming significant electricity price reductions for households and small businesses across New South Wales, south-east Queensland, and South Australia. Released on 27 May 2026, the determination marks a critical update for millions of energy consumers, with most seeing lower standing offer prices from 1 July 2026.
However, the reductions are not universal, with South Australian households on flat-rate offers facing a slight increase. For the first time, the DMO will also introduce time-of-use (ToU) reference prices, offering a new benchmark for consumers to compare market offers.
State-by-State Impact on Your Electricity Bill
Households on standing offers are set to see electricity prices decline between 1.1% and 10.7% across New South Wales, South Australia, and south-east Queensland. Residential flat-rate offers will decrease between 3.4% and 7.2% across most regions, with the notable exception of South Australia, where prices will increase by 1.4%.
Small businesses are poised for more substantial reductions, with standing offer time-of-use prices falling between 12.1% and 20.9%, and flat-rate offers decreasing between 6.8% and 11.3% across all regulated regions.
Here’s a breakdown of the specific flat-rate DMO changes for typical residential customers from 1 July 2026:
| Network Area | State | Previous DMO (AUD) | DMO 2026-27 (AUD) | Price Difference (AUD) | Price Difference (%) |
|---|---|---|---|---|---|
| Ausgrid | NSW | $1,965 | $1,899 | -$66 | -3.4% |
| Endeavour Energy | NSW | $2,411 | $2,328 | -$83 | -3.4% |
| Essential Energy | NSW | $2,741 | $2,604 | -$137 | -5.0% |
| Energex | South East QLD | $2,143 | $1,988 | -$155 | -7.2% |
| SA Power Networks | SA | $2,301 | $2,334 | +$33 | +1.4% |
“The Australian Energy Regulator has released the final Default Market Offer (DMO) determination for 2026–27, announcing electricity price reductions for households and small businesses across most regulated regions in Australia, as increasing renewable energy generation continues to place downward pressure on wholesale power prices.”
Queensland residents connected to the Energex network will see the largest dollar saving on flat-rate tariffs, with a $155 reduction. Conversely, South Australian customers on the SA Power Networks grid will face a $33 increase.
New Time-of-Use Reference Prices
A significant development in this year’s DMO is the introduction of time-of-use (ToU) reference prices. Historically, DMOs only provided benchmarks for flat-rate tariffs. This change reflects the evolving energy landscape and the increasing prevalence of smart meters and flexible pricing structures. ToU tariffs charge varied electricity rates at different times of the day, encouraging consumers to shift their energy use to off-peak periods when electricity is cheaper.
This new transparency for ToU offers will empower consumers to make more informed choices when comparing market offers, particularly those with solar panels or electric vehicles who can strategically manage their consumption. To understand how to leverage these new tariffs, consider reviewing Slash Your EV Home Charging Costs by 70% in Australia 2026: A Smart Guide or Best Electricity Plans in Australia 2026: A Comprehensive Guide for Households to Cut Costs.
Wholesale Prices Driving Retail Reductions
The AER’s decision to lower DMO prices for most regions is largely attributed to a sustained downward trend in wholesale electricity prices. This trend is a direct result of Australia’s accelerating transition to renewable energy. The nation’s main electricity grids surpassed 50% renewable energy generation for the first time in late 2025, contributing significantly to lower wholesale costs.
According to the Minister for Climate Change and Energy, Chris Bowen, wholesale electricity prices fell 12% year-on-year in the first quarter of 2026, driven by increased solar and battery penetration. AEMO’s Q1 2026 Quarterly Energy Dynamics report, released in April, highlighted a 12% year-on-year drop in NEM-wide wholesale spot prices, averaging AUD$73/MWh.
Victoria recorded the steepest wholesale price decline, averaging AUD$43/MWh (down 28% from Q1 2025), followed by Queensland at AUD$65/MWh (down 27%) and New South Wales at AUD$73/MWh (down 16%). South Australia, however, saw a 33% increase in Q1 2026 wholesale prices, averaging AUD$88/MWh, largely due to a significant weather-related volatility event on 26 January. This regional wholesale price dynamic likely contributed to the slight retail price increase for SA households in the DMO.
What This Means for Your Bill
While the DMO sets a safety net for standing offers, active engagement with the energy market remains the most effective way to manage your electricity costs. The DMO also serves as a reference price, allowing you to easily compare market offers from different retailers. Many competitive market offers exist that are typically lower than the DMO.
Consumers are encouraged to review their current electricity plans and compare them against the new DMO reference prices, particularly if they are on a standing offer or if their current market offer is expiring. Utilising comparison websites and understanding your usage patterns can lead to substantial savings. For further guidance on managing energy costs, refer to Navigating Australian Energy Bill Relief and Utility Costs in 2026: Your Essential Guide.
This latest DMO determination underscores the ongoing transformation of Australia’s energy market, with renewable generation increasingly influencing pricing dynamics and offering opportunities for consumers to reduce their energy expenditure.