Summary
- NSW says data centres are seeking up to 28GW of grid connections, with about 13GW in advanced discussions.
- Proposed reforms aim to recover additional network infrastructure costs from data-centre operators rather than other consumers.
- Twenty projects worth A$51.4 billion were in the State Significant Development pipeline as of July.
The New South Wales Government has closed consultation on reforms intended to prevent the electricity-network costs created by rapidly growing data-centre demand from being transferred to households and smaller businesses.
The state says data centres were seeking network connections totalling as much as 28GW in July 2026, with around 13GW already in advanced connection discussions.
That 13GW figure exceeds the state’s average electricity demand, although it represents requested connection capacity rather than operating consumption. Not every project in a queue will reach construction, and those that do are commonly built in phases.
The size of the pipeline nevertheless creates a network-planning problem before every project’s commercial outcome is known.
The consultation closed at 17:00 AEST on 14 September and proposes changes to connection and cost-recovery rules. The government’s stated principle is that data centres should be connected without imposing net additional infrastructure costs on other electricity customers.
That addresses one of the most difficult questions created by hyperscale development: who should pay when a new load requires a larger substation, transmission reinforcement, or other network investment?
Charging the entire cost to one connecting customer can be difficult where an upgrade later benefits other users. Spreading too much of the cost across the general customer base can leave households and businesses financing infrastructure triggered by a private industrial load.
New South Wales is attempting to make that allocation more explicit as part of a wider Data Centre Policy Framework.
The framework has three pillars. Planning guidelines set expectations around environmental performance, additional energy and water supply, community infrastructure, jobs, and skills. Energy reforms cover network cost recovery, while a separate Independent Pricing and Regulatory Tribunal review will consider water pricing for data-centre customers.
The energy department says 20 data-centre projects worth A$51.4 billion were in the State Significant Development pipeline as of July.
The proposed reforms would require the additional energy-infrastructure investment needed for growth in the sector to be recovered from data-centre operators, with legislation introduced to enable the changes.
The government will now review consultation submissions before preparing regulations, subject to passage of the relevant amendment bill.
The Australian market structure differs from European electricity systems, but the infrastructure problem is familiar. Britain, Ireland, the Netherlands, and several Nordic markets are all dealing with large connection queues and the question of how speculative or immature projects should interact with finite network capacity.
Hyperscale sites also stretch assumptions built around ordinary commercial connections. A campus seeking several hundred megawatts can resemble a large industrial complex in its effect on the power system.
Several applications concentrated in the same area can require transmission decisions years ahead of confirmed occupancy, particularly where long-lead transformers, substations, and line upgrades are involved.
Queue discipline consequently matters alongside cost allocation. Projects able to reserve large amounts of capacity before securing land, planning, finance, and customers can crowd out developments that are more advanced.
Requiring stronger financial commitments or infrastructure contributions can discourage speculative applications, but it can also favour developers with the largest balance sheets and raise barriers for smaller entrants.
New South Wales is addressing those trade-offs while its project pipeline is expanding. The 28GW connection figure explains the urgency: requested data-centre capacity is already large enough to influence decisions about generation, transmission, and customer pricing at system level.
The final regulations will determine how strongly that principle is enforced. The policy direction is already clear — the state wants data-centre expansion to fund the additional electricity infrastructure needed to support it rather than relying on other customers to absorb the cost.
