Quantum DC has paused its proposed 1200-megawatt AI data centre in the Adelaide Hills, with chief executive Alby Tomassi saying the company 'misread' the strength of community feeling about the project and will not seek development approval this year.
The developer said it would instead undertake a 'longer-term and more comprehensive engagement programme' to address community concerns. The company is proposing a hyper-scale data centre with energy infrastructure on Collins Road in Tungkillo, about 41 kilometres east of the Adelaide CBD.
'We misread the strength of feeling about this proposal and acknowledge the first weeks of our early engagement created more questions than answers,' Tomassi said in a statement. 'We sincerely apologise for this, and we understand the disappointment and frustration it has caused. That is why we are pausing and intend to take a fresh approach to how we engage and how this proposal is tested.'
Tomassi told 891 ABC Adelaide the company had been contacted by more than 350 people and the community had submitted a consolidated list of 432 questions covering water, energy, noise, lighting, the night sky, traffic, bushfire, farming land, location and the local environment. 'There is such deep frustration amongst the community, which was not our intent at all, and I admit we misread these responses and the only responsible thing to do now is to pause and reset,' he said.
Two community consultation sessions scheduled for last month were postponed amid safety concerns, and locals convened their own protest meetings attended by a few hundred people. Tomassi said this month's sessions were now cancelled because 'it wouldn't be effective to meet 500 people and answer 432 questions in an emotive open forum'.
Tungkillo resident Magdalene Lippett, who opposed the centre, welcomed the pause. 'I think that Quantum DC need to get the hint that no means no,' she told 891 ABC Adelaide. 'Our community have done the research, we've spoken to the experts, we've had a look at the issues … and this just isn't the right place, the hills is not the right place for their data centre.'
Quantum DC said it would convene a panel of independent experts to review specialist studies and make their findings public. Tomassi said the development application would not proceed until 'we set up these groups to scrutinise this project appropriately', but did not rule out progressing the Tungkillo data centre in the future. 'It's a global issue in regards to social acceptance [of data centres] and I think South Australia is appropriately poised to take this opportunity if the framework is right,' he said.
Mid Murray Council Mayor Simone Bailey said the council had received one briefing from Quantum DC and further information would be discussed at an upcoming meeting. She said the council has 'big concerns' about the location, its proximity to a dark sky reserve, distance from a Country Fire Service station, limited access on unsealed roads, and how the centre might affect noise pollution and the water table.
Premier Peter Malinauskas said the 'whole episode' demonstrated the need to legislate a framework to regulate data centre development in the state. 'What is crystal clear to the government is that we desperately need as a state to make sure we have a strong and strict regulatory framework to ensure that data centres aren't being built, or even being proposed, in places they shouldn't be,' he said. The premier said legislation would ensure community interest was 'represented' and 'enforced' during any data centre development process.
Analysis
Why This Matters
- The pause signals growing local resistance to large-scale AI infrastructure in Australia, with residents demanding rigorous scrutiny of water, energy and environmental impacts.
- The case is pushing the South Australian government to legislate a regulatory framework for data centre development, which could set a precedent for other states.
- The outcome will test whether community opposition can redirect or block projects that have become central to the global AI industry's expansion.
Background
AI data centres require massive amounts of electricity and water for cooling, and have faced increasing opposition in suburban and rural areas over noise, visual impact, and resource consumption. Quantum DC's proposal for Tungkillo, located in the Adelaide Hills near a dark sky reserve, drew particular ire from residents worried about the loss of agricultural land and rural character. The developer had scheduled community sessions last month but postponed them after safety concerns, and locals instead held their own protest meetings.
Key Perspectives
Quantum DC CEO Alby Tomassi: Conceded the company 'misread' community feeling, apologised, and said it would now engage in longer-term consultation with independent expert review before seeking approval.
Tungkillo resident Magdalene Lippett: Said 'no means no' and argued the hills are not the right place for the data centre after the community's own research.
Mid Murray Mayor Simone Bailey: Expressed 'big concerns' about the location's proximity to a dark sky reserve, fire service access, unsealed roads, and impacts on noise and water.
Premier Peter Malinauskas: Argued the episode showed the need for a strict regulatory framework to ensure data centres are not proposed in unsuitable locations.
What to Watch
- Whether Quantum DC returns with a revised proposal or abandons the Tungkillo site entirely.
- The timing and content of the South Australian government's data centre legislation.
- The outcome of the independent expert panel's reviews and whether they address community concerns on water, energy and environmental impacts.
Checked
12 claims in this story checked against 1 source: 12 supported.
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- SupportedQuantum DC paused the Adelaide Hills data-centre proposal after saying it misread community feeling.Latest Science news: “A developer says it has paused its plans to build a 1200-megawatt AI data centre in the Adelaide Hills, saying it "misread" community feeling about the proposal.”
- SupportedQuantum DC will not seek development approval this year.Latest Science news: “Quantum DC chief executive Alby Tomassi said the company would not seek development approval this year”
- SupportedThe proposed AI data centre has a capacity of 1200 megawatts.Latest Science news: “a 1200-megawatt AI data centre in the Adelaide Hills”
- SupportedMore than 350 people contacted Quantum DC about the proposal.Latest Science news: “Mr Tomassi said the company has been contacted by more than 350 people about the proposal”
- SupportedThe community submitted a consolidated list of 432 questions.Latest Science news: “the community had submitted a consolidated list of 432 questions.”
- SupportedTomassi said, “We misread the strength of feeling about this proposal and acknowledge the first weeks of our early engagement created more questions than answers.”Latest Science news: “"We misread the strength of feeling about this proposal and acknowledge the first weeks of our early engagement created more questions than answers," he said in a statement.”
- SupportedTomassi said the community was frustrated, that the company had misread the responses, and that it should pause and reset.Latest Science news: “"There is such deep frustration amongst the community, which was not our intent at all, and I admit we misread these responses and the only responsible thing to do now is to pause and reset," he told 891 ABC Adelaide.”
- SupportedTomassi said the November sessions were cancelled because it would not be effective to meet 500 people and answer 432 questions in an emotive open forum.Latest Science news: “Mr Tomassi said those November community sessions were now cancelled because "it wouldn't be effective to meet 500 people and answer 432 questions in an emotive open forum".”
- SupportedLippett said Quantum DC should get the hint that no means no, and that the Hills was not the right place for the data centre.Latest Science news: “"I think that Quantum DC need to get the hint that no means no," she told 891 ABC Adelaide. "Our community have done the research, we've spoken to the experts, we've had a look at the issues … and this just isn't the right place, the hills is not the right place for their data centre."”
- SupportedQuantum DC said it would convene independent experts to review specialist studies and make their findings public.Latest Science news: “Quantum DC said it would now convene a panel of independent experts to review specialist studies and make their findings public.”
- SupportedThe council had big concerns about the location, nearby dark-sky reserve and fire-service station, unsealed-road access, noise and the water table.Latest Science news: “She said the council has "big concerns" about the location of the proposed data centre, its proximity to a dark sky reserve , distance from an SA Country Fire Service station, limited access on unsealed roads and how the centre might affect noise pollution and the water table.”
- SupportedMalinauskas said the episode demonstrated the need for a state framework to regulate data-centre development.Latest Science news: “SA Premier Peter Malinauskas said the "whole episode" of Tungkillo demonstrated the need to legislate a framework to regulate data centre development in the state.”