Exclusive-In Australia, a data centre boom is built on vague water plans

Sydney authorities have approved numerous data center projects, including those by Microsoft, Amazon, and AirTrunk, without requiring measurable water conservation plans, despite projections indicating these facilities could consume nearly 2% of the city's clean water supply annually, potentially rising to 25% by 2035. This regulatory oversight, amid Sydney's limited water resources and past drought-induced restrictions, poses significant operational and reputational risks for data center operators and suggests potential for future regulatory tightening or construction moratoriums, impacting the long-term viability of these investments.

Analysis

Regulatory approvals for ten data centers in Sydney, including projects by Microsoft, Amazon, and Blackstone's AirTrunk, highlight a significant and growing environmental, social, and governance (ESG) risk. Despite planned construction spending of A$6.6 billion, the New South Wales government has green-lit these projects without requiring measurable water conservation targets. The approved centers are projected to consume up to 9.6 gigalitres of clean water annually, nearly 2% of Sydney's maximum supply, with Sydney Water's internal projections suggesting this could escalate to 25% by 2035. This lenient oversight exists in a region with a history of severe drought and water restrictions, creating a potential conflict over resources. The water-saving commitments from developers are minimal and lack accountability, such as AirTrunk's 0.4% projected reduction from rainwater harvesting on one facility. Growing opposition from local councils, including calls for a moratorium on new approvals, signals a high probability of future regulatory tightening, which could introduce operational risks, increase costs, or stall development for these key infrastructure assets underpinning the global AI and cloud computing boom.

Key Decisions for Investors

• Investors with positions in Microsoft (MSFT), Amazon (AMZN), and Blackstone (BX) should scrutinize the operational and reputational risks associated with their Australian data center assets, as potential future water-use regulations or moratoriums in Sydney could impact project timelines and long-term profitability.
• The situation highlights a material ESG risk for data center operators globally; it is prudent to evaluate the water-risk exposure of other technology infrastructure investments, particularly those in regions prone to drought or with stressed water supplies.
• Monitor for any shift in New South Wales' policy regarding data center approvals, as a tightening of environmental standards could serve as a leading indicator for similar regulatory actions in other jurisdictions, affecting the entire sector's growth assumptions and cost structures.