The document, released to parliament following a Greens motion, lists two of the six "confidential" projects as being in the feasibility stage, meaning a preferred site has been selected and proponents are undertaking further assessments. One feasibility-stage project in the state's north-west is listed as needing 200-300 megawatts (MW) of energy, which could make it the biggest data centre in the state. A second project with the same power requirement remains in the earlier concept stage.
Another 50 MW concept-stage project has "expressed interest in" the closed manganese smelter at Liberty Bell Bay in northern Tasmania, the document states. In total, the six projects would use at least 500 MW if all proceed.
The proposals are separate from three AI data centres planned by Firmus Technologies, which include a facility under construction in Launceston, an approved project in the Bell Bay Advanced Manufacturing Zone, and a third awaiting approval at Wesley Vale in the state's north-west. Firmus's combined 444 MW requirement is on track to make it the state's biggest power user. VIRIDIS has also received council approval for a small 1 MW data centre in Burnie.
The document explains that much of the information has been withheld because the Office of the Coordinator General's conversations with proponents often occur at a preliminary stage and may involve commercially sensitive information. "Where information has not been included, this reflects that it is either not yet available, not sufficiently settled, not capable of reliable estimation, or has been provided to OCG in confidence," it states, adding that the approach "is not intended to limit the parliament's access to information, but to ensure the information provided is accurate, appropriately qualified and does not compromise current or prospective commercial processes."
The release follows a Greens motion calling on the government to table details of all proposed AI data proponents working with the Coordinator General, their locations, and estimated power and water construction. Greens have accused Premier Jeremy Rockliff of keeping Tasmanians in the dark over the proposals.