Australia's data centre boom is accelerating. Cloud computing, artificial intelligence, and digital services are driving unprecedented demand for energy-intensive facilities. But rapid growth comes with a hidden risk: without clear technical standards, data centres could adversely impact grid stability.
The Australian Energy Market Commission (AEMC) has released a draft rule proposing new technical standards for large data centres and similar facilities connecting to the National Electricity Market. The AEMC is now seeking stakeholder feedback by 7 May 2026, before finalising the standards.
Why this matters now
Most data centres use inverter-based technology, similar to that used in many wind and solar farms, as well as batteries. When the grid experiences a credible disturbance such as a voltage dip, these facilities can suddenly disconnect - and if many disconnect simultaneously, it could increase the risk of cascading outages or instability.
In July 2024, 60 data centres in the U.S state of Virginia pulled 1,500 MW off the grid simultaneously during a single fault. This caused cascading failures and grid instability. Similar incidents in Ireland and Texas have prompted some jurisdictions to halt new data centre connections entirely.
What the AEMC is proposing
The draft rule proposes three key changes:
First, a clearer framework for defining and classifying large inverter-based loads (including data centres), which would determine when and to whom the technical connections standards apply, particularly for those parties connecting to the distribution network.
The draft rule would raise the current threshold for large inverter-based loads from 5 MW to 30 MW and embed this definition directly in the National Electricity Rules, so stricter technical requirements apply only to those most likely to affect power system security.
Secondly, data centres would need to meet specific disturbance ride-through requirements, staying connected during certain voltage and frequency disturbances and recovering power within defined timeframes. These standards are based on actual plant capabilities and grid needs.
Third, alignment with global practice. By largely matching the standards proposed or used in the U.S state of Texas, Ireland, and Finland, data centre operators could use the same equipment and feasibility studies as they do elsewhere. This standardised approach would mean faster deployment, lower costs, and better investment certainty.
Chair Anna Collyer says clear grid standards are essential to supporting Australia’s data centre growth without compromising system security.
“Data centres aren’t passive loads anymore; they’re active grid participants. When they fail to ride through faults, it has the potential to trigger cascading failures and blackouts,” Ms Collyer said.
“We have seen this happen overseas, and it can cost consumers billions in lost electricity supply or emergency network upgrades.
“These proposed standards would help prevent that. They are designed to enable investment with certainty, not block it. Data centre operators would know exactly what’s required upfront, and network service providers would be able to apply technical connection standards consistently.”
Ms Collyer added that industry input had been crucial in shaping the proposal. And stakeholder feedback would be equally important before finalising the rule.
“We have consulted extensively with data centre operators, network service providers, and equipment manufacturers throughout this process. We welcome feedback from the broader market before we finalise the rule.”
Key draft recommendations
- Large data centres: Connecting to the grid would need to meet new ride-through standards to stay connected during faults
- Clear threshold: For data centres connecting to distribution networks, the draft rule defines ‘large’ inverter -based loads as 30 MW or greater (up from 5 MW), so technical requirements apply proportionately based on actual grid risk
- International alignment: Standards would largely match those in use or proposed in Texas, Ireland, and Finland, reducing equipment costs and engineering complexity
- Better visibility: Network service providers and the Australian Energy Market Operator (AEMO) would have clearer data on how data centres respond to grid disturbances, enabling more efficient system management
- Compliance focus: Connection agreements would require terms ensuring non-registered data centres stay compliant with performance standards (registered facilities already need to comply with strict compliance requirements under the NER).
Supporting the transition
To help stakeholders prepare for these new standards, AEMO is publishing interim guidelines in the coming months. These guidelines, developed through the same technical working group process, will help network service providers and data centre developers understand and prepare for the proposed rule changes. The guidelines will be designed to support consistent assessment approaches across the National Electricity Market while the final rule is being finalised.
What happens next
The AEMC is seeking stakeholder feedback on the draft rule and determination. Submissions close on 7 May 2026. We will consider all feedback before publishing a final rule, expected mid-2026. We have worked with AEMO, network service providers, and major data centre operators to develop this draft proposal. Stakeholders are now invited to comment before the final rule is decided.
Visit the project page for the draft determination, draft rule and information sheet.
About the AEMC
The Australian Energy Market Commission (AEMC) is an independent statutory body that advises Australian governments on energy market rules and conducts reviews of the energy sector. The AEMC's work is guided by the long-term interests of energy consumers - including reliable, safe and affordable energy.
Media: Jessica Rich, 0459 918 964, media@aemc.gov.au