Australia has emerged as an increasingly attractive destination for data centre investment, with 162 facilities already operating and approximately 90 more planned across the country. The sector is expected to receive more than A$155 billion in investment. Major projects include a proposed gigawatt-scale facility in western Sydney that would become Australia’s largest single energy consumer, and a Southern Hemisphere-scale data centre currently under construction in Marsden Park, situated just 100 meters from residential communities.
The expansion is driven by several factors favoring Australia’s position in the global AI infrastructure race. The country offers political stability, abundant land availability, membership in the Five Eyes security alliance, a skilled workforce, and significant renewable energy potential. Australia reports approximately 13.6 million monthly AI users, ranking sixth globally. Proponents argue that hosting data centre infrastructure domestically will enable development of local AI companies and support broader economic growth. Business leaders and government officials contend that the data centre boom has prevented economic recession in recent years.
However, the rapid expansion has triggered substantial concerns from residents and environmental experts. Data centres produce significant noise, with operations described as resembling jet engines or high-pitched whining sounds. Communities located near facilities report constant humming that affects daily life.
Energy demands present perhaps the most pressing challenge. The Australian Energy Market Operator projects that data centre energy consumption could triple by 2030 nationwide. According to the Climate Council, without substantial new renewable generation and storage capacity, data centres could increase power prices by 26 percent in New South Wales by 2035. Energy experts warn that because data centres require continuous power at scales wind and solar cannot reliably provide, the boom may drive construction of new coal and gas power plants. A Greenpeace Australia Pacific report found that data centre operators have not adequately demonstrated they are driving renewable energy growth. In the United States, operators have opted to build new gas-fired power stations rather than wait for renewable infrastructure development.
Water consumption presents additional environmental concerns. Some facilities require up to 40 million litres daily to cool servers, equivalent to the consumption of 80,000 households. In a drought-prone country, this demand raises significant sustainability questions. Government officials maintain that private sector investment in data centres will accelerate renewable energy development, with the private sector funding much of the transition away from coal-fired generation.
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