NextDC Ltd, the developer behind one of Australia's largest data centres, has encountered delays in securing power supply at its M3 facility in Melbourne, raising concerns over potential bottlenecks in the country's expanding artificial intelligence infrastructure. The company requested an immediate halt to its trading on Monday as it evaluated the impact of the power supply setback on its fiscal 2027 forecasts.
The M3 data centre in Melbourne’s west, a hub for cloud computing, AI, and large-scale enterprise platforms, is currently partially operational. However, the full commissioning of the centre faces challenges as power demand in the area exceeds the capacity of existing electricity infrastructure. Network operators Jemena Ltd and Powercor Australia Ltd had earlier indicated in August that data centres in the region were requesting more power than the grid could currently support. Industry analysts from Citigroup, Siraj Ahmed and Howard Suen, linked the delay to Jemena’s pause on work related to power lines intended to serve the M3 site, which could reduce NextDC’s operating earnings by as much as A$25 million in the 2027 fiscal year.
Australia’s broader data centre expansion is encountering similar constraints as it seeks to meet the growing demand for AI and cloud services. The Commonwealth Bank of Australia projects that data centre investments could reach A$150 billion (approximately US$105 billion) by 2030. However, these energy-intensive facilities require consistent, 24/7 electricity supply, a requirement complicated by the nation’s transition away from aging coal power plants toward more variable renewable energy sources such as wind and solar.
Naomi Wagura, a researcher with Accela Research focusing on energy transition issues, noted that data centres can be developed more rapidly than the supporting electricity infrastructure, posing risks that power availability may lag behind expansion efforts. AusNet Services Holdings Pty Ltd, which manages network operations in Victoria, confirmed that power demand from emerging data centre proposals in the state—responsible for about one-third of Australia’s transmission connection requests—is exceeding available capacity.
NextDC’s board has yet to convene to assess the full ramifications of the delay. The company did not immediately respond to requests for comment, and the statement accompanying its trading halt did not specify the root cause of the power supply issues. Meanwhile, NextDC’s share price has declined sharply, dropping nearly one third since late August amid mounting concerns over infrastructure constraints.
The situation underscores the critical need for Australia to align investments in electricity generation, storage, and grid capacity with the rapid growth of its digital infrastructure sector to avoid impeding the rollout of AI and cloud services nationwide.