Australian energy consumers can expect significant changes to their electricity bills from 1 July 2026, with the Australian Energy Regulator (AER) and Victoria’s Essential Services Commission (ESC) releasing their final Default Market Offer (DMO) and Victorian Default Offer (VDO) determinations this week. The announcements confirm price reductions for most households and small businesses across New South Wales, South East Queensland, and Victoria, driven by falling wholesale electricity costs and increased renewable energy generation. However, South Australian residential customers on flat rate standing offers will see a modest price increase.
The DMO and VDO act as a safety net, setting the maximum price retailers can charge customers on standing offer contracts. They also serve as a crucial benchmark for comparing market offers, even though fewer than 10% of residential consumers are directly on these default plans.
Significant Savings for Most Eastern States
Households and small businesses in NSW, South East Queensland, and Victoria are set to benefit from the price adjustments. In New South Wales, residential flat rate standing offers will fall between 3.4% (around AUD$66) and 5.0% (up to AUD$137). Those with smart meters on time-of-use tariffs could see reductions from 3.7% (AUD$72) to 7.7% (up to AUD$211).
Small businesses in NSW are poised for even larger savings, with flat rate offers decreasing between 9.0% (AUD$432) and 11.3% (up to AUD$705). Time-of-use small business customers could see their bills drop by 9.4% (AUD$449) to a substantial 20.9% (up to AUD$1,303).
South East Queensland residential customers on flat rates will experience a 7.2% reduction (AUD$155), while time-of-use users will enjoy a 10.7% decrease (AUD$229). Small businesses in the region will see flat rates fall by 10.4% (AUD$445) and time-of-use tariffs by 14.0% (AUD$601).
Victoria, under its independent VDO, will see residential bills drop by an average of 5% (AUD$84 annually), and small business costs decrease by approximately 6% (AUD$241 annually).
“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,” said AER Chair Clare Savage.
South Australia Bucks the Trend for Flat Rate Households
While most regions are seeing price cuts, South Australian residential customers on flat rate standing offers will face a 1.4% increase, equating to an average rise of AUD$33 annually. However, South Australian residential customers on time-of-use contracts will see a 1.1% decrease (AUD$25).
Small businesses in South Australia will still benefit, with flat rate offers decreasing by 6.8% (AUD$379) and time-of-use tariffs by 12.1% (AUD$673).
Energy Minister Tom Koutsantonis attributed the state’s residential flat rate increase to “very-high transmission costs” and the extensive length of its transmission lines.
Driving Forces Behind the Price Shifts
The primary driver for the widespread price reductions is a notable fall in wholesale electricity costs. This decline is largely attributed to the increasing penetration of renewable energy and battery storage into the National Electricity Market (NEM).
According to the AER, wholesale costs fell by between 2% and 14% for the coming financial year. This is due to:
- More Wind and Battery Generation: Increased output from wind farms and grid-scale batteries is reducing reliance on more expensive gas and hydro generation, particularly during evening peak periods.
- Lower Electricity Futures Prices: Forward contracts for 2026-27 continue to trade lower.
- Reduced Spot Market Volatility: Fewer high-price events (exceeding AUD$5,000/MWh) have been observed since June 2025.
Indeed, Australia’s main electricity grids surpassed 50% renewable energy generation for the first time in late 2025. Furthermore, large-scale batteries are now setting wholesale electricity prices in one-third of all trading intervals, a significant increase from 16% just a year ago, displacing gas and hydro as the most frequent price-setting technology.
Environmental scheme costs also saw a sharp decrease, and retailer operating costs eased, further contributing to the downward pressure on prices.
Introducing the Solar Sharer Offer
For the first time, the DMO determination includes a new “Solar Sharer Offer.” This opt-in plan is designed for customers with smart meters and provides three hours of free electricity daily during the middle of the day. The price of this offer will be regulated using the same annual price as the time-of-use DMO available in each distribution zone.
This initiative aims to encourage consumers to shift their electricity usage, such as running washing machines, air conditioning, or Optimise EV Charging with Solar in 2026: Slash Bills by $1,500+ Annually, into periods of abundant solar generation, potentially leading to further bill reductions. The rollout of this offer is set to begin in NSW and South Australia from July 2026.
What This Means for Your Energy Bill
While the DMO and VDO provide a crucial benchmark, they are not necessarily the cheapest available electricity plans. Many households and businesses are already on market offers that are more competitive. The AER encourages all consumers to actively compare and switch electricity providers to ensure they are getting the best deal.
Consumers should review their current energy plan against the new DMO/VDO rates and actively engage with retailers. Understanding your energy usage patterns, particularly if you have a smart meter, can help you leverage time-of-use tariffs or the new Solar Sharer offer for maximum savings. For guidance on navigating your options, refer to our guide on How to Compare and Switch Electricity Providers in Australia 2026: Your Essential Guide to Beating Rising Bills.
Final DMO/VDO Price Changes by State and Customer Type (Effective 1 July 2026)
| State (Regulator) | Customer Type & Tariff | Annual Change (AUD$) | Percentage Change |
|---|---|---|---|
| NSW (AER) | Residential Flat Rate | -$66 to -$137 | -3.4% to -5.0% |
| Residential Time-of-Use | -$72 to -$211 | -3.7% to -7.7% | |
| Small Business Flat Rate | -$432 to -$705 | -9.0% to -11.3% | |
| Small Business Time-of-Use | -$449 to -$1,303 | -9.4% to -20.9% | |
| SE QLD (AER) | Residential Flat Rate | -$155 | -7.2% |
| Residential Time-of-Use | -$229 | -10.7% | |
| Small Business Flat Rate | -$445 | -10.4% | |
| Small Business Time-of-Use | -$601 | -14.0% | |
| SA (AER) | Residential Flat Rate | +$33 | +1.4% |
| Residential Time-of-Use | -$25 | -1.1% | |
| Small Business Flat Rate | -$379 | -6.8% | |
| Small Business Time-of-Use | -$673 | -12.1% | |
| Victoria (ESC) | Residential Average | -$84 | -5.0% |
| Small Business Average | -$241 | -6.0% |
Note: Figures represent average or range of changes for typical consumption profiles on standing offers. Individual bills will vary based on actual usage, retailer, and specific tariff structure.
The continued influx of renewable energy and battery storage is fundamentally reshaping Australia’s energy landscape, offering the potential for sustained downward pressure on wholesale prices. For homeowners considering how to further reduce their energy costs, understanding the benefits of solar and battery systems, including available Home Battery Rebates Available in Australia 2026, remains a key strategy. The DMO and VDO changes underscore a dynamic market where informed choices can lead to substantial savings.