Quantum DC Plans 1.2 GW Tungkillo Data Center and Energy Hub in Australia

Quantum DC has set out a power strategy for its proposed 1.2 GW data center and energy hub near Tungkillo in South Australia's Adelaide Hills that relies primarily on renewable energy.

Power Mix Designed Around Renewables with Gas Backup

The developer states that wind and solar generation contracted from elsewhere in South Australia would supply around 80 per cent of the facility's electricity, with on-site gas-fired turbines expected to cover the remaining 20 per cent when renewable output is low.

The hub would connect to existing ElectraNet 275kV transmission infrastructure through two new substations, and its on-site generation is also intended to feed electricity into the grid at times. Local reporting has put the proposed gas-fired generation capacity at 400MW, although Quantum DC's published project description has not specified that figure.

Site and Scale of the Proposal

The Tungkillo Compute and Energy Hub is planned for 312 Collins Road, approximately 55km east of Adelaide. The site spans five land parcels covering 220 hectares, with Quantum DC intending to develop around 120 of those hectares. The project combines hyperscale computing infrastructure with renewable energy procurement and on-site gas-fired generation.

Delivery Planned in Three Stages

According to the developer, the project would be delivered in three stages, with the first stage anticipated to begin operations in 2028. Full development is expected to be completed by 2031.

Cooling Technology and Water Supply

The facility will use closed-loop, direct-to-chip liquid cooling with air-cooled heat rejection. Current estimates put operational water consumption at around 20 megalitres annually. Rainwater collected from building roofs is intended to serve as the main source of operational water, supplemented by commercial water deliveries where necessary.

Residents and Farmers Raise Concerns

The proposal has drawn opposition from local residents and farmers, who have raised concerns about potential effects on the rural landscape, agriculture, wildlife, noise, light and water resources. Tungkillo sits just within the River Murray Dark Sky Reserve, an internationally accredited area protected from light pollution, according to the ABC.

Assessment Pathway and Current Status

Quantum DC intends to lodge a development application through South Australia's Essential Infrastructure/Crown assessment pathway. To date, no application has been lodged and the proposal has not received approval.