Quantum DC cancels Tungkillo data center meeting over bomb threat

Quantum DC has canceled a community drop-in session for its proposed 1.2GW Tungkillo Compute and Energy Hub near Adelaide, Australia, after what the company called a "credible" bomb threat.

The developer disclosed the cancellation in a note to residents. "Unfortunately, due to a credible bomb threat made, we have had to cancel this community drop-in session in the interest of safety," the note said. "This has been reported to SA Police."

The company added: "We will share more information very soon about future opportunities for engagement. Please see quantumdc.com.au."

Chief executive Alby Tomassi confirmed the decision in a statement to 7news. "We are extremely disappointed that we were forced to postpone this afternoon's community drop-in session after a credible bomb threat was received," Tomassi said. "Public safety must always take priority, and we had no choice but to make this decision."

DCD has contacted Tomassi for further details on the incident.

What is the Tungkillo project?

Quantum DC wants to build a large-scale data center and power campus that could total 1.2GW at full build-out. The site spans 220 acres. If approved, the company anticipates first-stage operations commencing in 2028, with the full development completed by 2031.

One detail stands out: Quantum DC has not previously built or operated data centers. Tungkillo would be its first.

The project sits inside a broader wave of hyperscale buildout in Australia, where gigawatt-scale campuses are increasingly common planning proposals. A first-time developer pursuing a 1.2GW site raises obvious execution questions. South Australia will now weigh those questions under its Essential Infrastructure assessment process.

Why are locals opposed?

The project has faced mounting opposition from residents and farmers near the site. Their stated concerns:

• Impact on the natural environment
• Effects on livestock
• Damage to the dark sky reserve, an area protected for low light pollution

Water demand is a flashpoint. Project documents state construction will require 150 million to 250 million liters of water. Once operational, annual demand runs to about 20 million liters.

Those figures land in a region where agricultural water allocations are contested. Farmers opposing the scheme have pointed to both the construction draw and the steady operational demand as unacceptable burdens.

What does the planning route change?

Quantum DC has sought to use South Australia's Essential Infrastructure assessment process. That route provides a 15-day public submission period — a short window compared with standard major-project consultation timelines.

Opponents argue the compressed schedule limits meaningful community input on a 220-acre industrial development. The canceled drop-in session was Quantum DC's attempt to address local concerns directly outside the formal process. Its cancellation removes, at least temporarily, the main in-person engagement channel.

The company says replacement engagement opportunities are coming. No dates have been announced.

What happens next?

SA Police are handling the reported threat. The assessment process continues in the background, with the 15-day submission window the community's formal avenue for objection. A first-stage 2028 operational target gives Quantum DC roughly three years from approval to power-on — tight for an operator that has never delivered a data center.

For now, the project's most consequential number remains 1.2GW. Whether a debut developer can carry it through a hostile consultation is the question South Australia's planners will have to answer.