Australian households and small businesses on standing offer electricity plans across New South Wales, South East Queensland, and South Australia are set to experience a reduction in their electricity bills from July 1, 2026. This follows the Australian Energy Regulator’s (AER) final determination for the Default Market Offer (DMO) 2026-27, released on May 26, 2026. The decision will see prices fall for the majority of affected customers, with some small businesses in NSW potentially saving over $1,300 annually.
The DMO serves as a crucial safety net, setting the maximum price energy retailers can charge customers on standing offer contracts. It also acts as a reference price, enabling all consumers to more easily compare market offers. Approximately 987,000 households and 139,000 small businesses across the DMO regions (NSW, SE QLD, SA) and Victoria’s equivalent Victorian Default Offer (VDO) are impacted by these regulated price changes.
“This is a positive outcome with prices coming down for the majority of households and all small businesses across the three regions where the DMO safety net applies,” stated AER Chair Clare Savage. The reductions reflect easing cost pressures within the electricity supply chain, particularly in wholesale energy.
Residential Savings: State-by-State Breakdown
For residential customers on flat-rate standing offers, the price changes vary by state and distribution zone:
- New South Wales: Households will see reductions between 3.4% ($66) and 5.0% ($137), depending on their distribution zone (Ausgrid, Endeavour, or Essential Energy).
- South East Queensland: Customers are set for a 7.2% ($155) decrease in their annual bills.
- South Australia: This region is an exception for flat-rate residential customers, facing a modest 1.4% ($33) increase.
However, for smart meter households utilising time-of-use (ToU) standing offers, the news is more universally positive:
- New South Wales: ToU customers can expect reductions ranging from 3.7% ($72) to 7.7% ($211).
- South East Queensland: The largest residential savings are here, with a 10.7% ($229) decrease for ToU customers.
- South Australia: Even with the flat-rate increase, ToU customers in SA will see a 1.1% ($25) reduction.
“The reductions compared to last year reflect easing cost pressures in parts of the electricity supply chain and addresses industry and consumer feedback to ensure prices remain fair and workable in practice.”
— Clare Savage, AER Chair
Significant Relief for Small Businesses
Small businesses across all three DMO regions will experience reductions, with some seeing substantial savings:
| Region | Flat Rate Decrease (AUD) | Time-of-Use Decrease (AUD) | Combined Range (%) |
|---|---|---|---|
| New South Wales | $432 - $705 | $449 - $1,303 | 9.0% - 20.9% |
| South East Queensland | $445 | $601 | 10.4% - 14.0% |
| South Australia | $379 | $673 | 6.8% - 12.1% |
Small businesses in New South Wales on time-of-use tariffs stand to benefit the most, with potential savings of up to $1,303 annually.
Why Are Prices Falling?
The AER attributes these price adjustments primarily to a decrease in wholesale electricity costs. This trend is largely driven by the increasing integration of renewable energy sources, such as solar and wind, and the significant expansion of battery storage capacity across the National Electricity Market (NEM).
Grid-scale and household batteries are playing an increasingly vital role in stabilising the grid and reducing reliance on more expensive gas and hydro generators, particularly during evening peak demand periods. This shift has led to lower electricity futures prices and reduced spot market volatility.
Australia’s energy system is rapidly evolving, with record growth in household batteries and solar helping to shift renewable electricity generation from daytime to evening use. The Clean Energy Regulator’s (CER) Q1 Quarterly Carbon Market Report for 2026 showed continued rapid growth under the Cheaper Home Batteries Program, taking total installed capacity to 7.4 GWh in nine months. This record growth in distributed energy resources is contributing to a more resilient and cost-effective energy market.
The New Solar Sharer Offer
Adding another layer of potential savings, the DMO 2026-27 determination also includes the introduction of the Solar Sharer Offer. This opt-in energy plan, available to customers with smart meters in DMO regions (NSW, SE QLD, SA), provides three hours of free electricity in the middle of the day. This initiative aims to allow households, including those without rooftop solar, to reduce their bills by shifting energy usage to these free periods, while also supporting a more reliable and efficient grid.
For more information on leveraging smart energy solutions to manage your bills, consider exploring options like Smart Home Energy Systems: Slash Your 2026 Australian Electricity Bills by Up To 30%.
What This Means for Consumers
While the DMO provides a regulated safety net, the majority of Australian energy customers are on market offers rather than standing offers. These customers will not automatically benefit from the DMO price changes. However, the DMO still serves as a crucial benchmark. It is strongly recommended that all households and businesses review their current energy plans and compare them against the new DMO reference prices to ensure they are on the most competitive offer available.
Consumers seeking assistance with understanding their options and accessing potential support can refer to guides such as Navigating Australia’s Energy Bill Relief and Support in 2026: A Comprehensive Guide.
For South Australian residents, despite the slight increase in flat-rate DMO prices, the overall trend towards lower wholesale costs and the availability of time-of-use savings and the Solar Sharer Offer still present opportunities for bill management. The ongoing investment in renewable energy and battery storage continues to reshape the market dynamics, offering long-term benefits for consumers. For those considering larger energy investments, information on Unlock $3,700+ in Rebates: Your 2026 Guide to Australian Home Battery Systems could be beneficial.
These changes, effective from July 1, 2026, underscore the dynamic nature of Australia’s energy market and the increasing influence of renewable generation and storage on retail prices.