Data centre rules tighten across Australia as federal and state measures stack up

Governments at every level in Australia are reworking how data centres are approved, and developers face heavier duties on planning, land, water, power access and environmental checks, according to consultancy PJRA. PJRA, which sells environmental services to developers, said many proponents are unclear on when the new laws start and what they mean for projects already underway.

The Department of Industry, Science and Resources issued guidance in March 2026 titled Expectations of data centres and AI infrastructure developers, setting out expectations that are not binding. On 26 August, National Cabinet backed the development of mandatory national standards for large data centres, spanning energy, water and land use, with Commonwealth legislation aimed at early 2027. The Commonwealth then began consultation on 26 September on a tiered national standard for AI infrastructure. Under the proposed model, sites with under 30MW of connection capacity would fall outside the standard, sites from 30MW to 100MW would meet baseline requirements, and larger sites, or those with a portfolio equivalent of 150MW, would face tougher obligations. Submissions closed on 9 October 2026.

On energy, the Australian Energy Market Commission advised the Energy and Climate Change Ministerial Council on pathways that would make data centres offset all of their electricity demand with new renewable generation and proof of firmed capacity. The council agreed in July 2026 to advance the arrangements, with Queensland and the Northern Territory opposed, and related changes to the National Electricity Rules were slated for its consideration in September 2026. Energy Minister Chris Bowen separately lodged two rule change requests with the AEMC, aimed at making data centres pay towards network costs their connections cause or speed up, instead of existing consumers.

States have acted before the federal legislation arrives. New South Wales released the Electricity Infrastructure Investment Amendment Bill 2026, which would give the state energy minister power over grid access and make data centres fund network infrastructure. On 22 September, Victoria introduced what PJRA calls the strictest state data centre rules in the country, under its Sustainable Data Centre Action Plan. New facilities there must supply their own renewable energy and storage, sit 150m from residential buildings and cool with recycled or non-drinking water.

PJRA said diesel backup generators are drawing more attention in air quality assessments, with regulators asking for modelling of combustion emissions and, where facilities cluster, cumulative impacts. Victoria limits backup diesel use to emergencies and mandatory testing and requires ongoing monitoring and reporting of runtime and emissions. On water, NSW guidelines set design targets for both power and water usage effectiveness, and PJRA said proposals lacking an early, credible water strategy meet more scrutiny and delay.

The consultancy also flagged emissions inventories, health and safety planning for fuel, batteries and refrigerants, and contamination checks on sites as areas attracting approval conditions. It said much of the legislation is not yet enforceable, yet planning authorities already apply scrutiny beyond that of an ordinary commercial or industrial project.