Amazon Reports 2.5 Billion Gallons of Annual Data Center Water Use

Amazon Discloses 2.5 Billion Gallons of Annual Data Center Water Consumption

According to The Verge AI, Amazon has publicly disclosed its global data center water consumption for the first time: 2.5 billion gallons in 2025, consumed at a rate of 0.12 liters per kilowatt-hour of electricity. The company achieved a 2% reduction in total water use compared to 2024, despite expanding its operational footprint. The disclosure arrives as Seattle implemented a one-year moratorium on new data center construction, a policy some Amazon employees had advocated for amid growing environmental concerns.

Efficiency Claims and Competitive Positioning

Amazon asserts its data centers operate seven times more efficiently than the industry average in water consumption, citing a peer-reviewed study released in the prior year. The company’s report includes a comparison graphic positioning Amazon ahead of Microsoft, Google, and Meta on water intensity metrics. However, The Verge AI notes a methodological caveat: Google’s cited figures target only Gemini AI data center operations, while Amazon’s encompasses all global data center assets. This scope difference complicates direct comparison and potentially inflates Amazon’s relative advantage.

Cooling Architecture and Operational Strategy

Amazon relies on air cooling for approximately 90% of data center runtime, according to The Verge AI. During peak thermal conditions—the hottest hours on the hottest days—the company deploys evaporative water cooling and simultaneously raises server heat tolerances to reduce reliance on water-intensive cooling cycles. This hybrid approach reflects a deliberate engineering trade-off between operational efficiency and thermal management.

Scope Limitations in Reported Metrics

The Verge AI highlights a critical gap in Amazon’s water accounting: the figures exclude indirect water consumption at power generation facilities supplying electricity to Amazon’s data centers, as well as water usage embedded in new data center construction. These omissions mean the reported 2.5 billion gallon figure understates Amazon’s true hydrological footprint, though they align with how the broader tech industry typically reports data center water metrics.

Why This Matters

Amazon’s first-time disclosure sets an expectation for transparency at a moment when AI data center proliferation is intensifying competition for regional water resources. For cloud infrastructure teams evaluating vendor sustainability commitments, the distinction between reported and total water use—inclusive of indirect consumption—becomes material for environmental impact accounting. The comparison framework Amazon selected (Microsoft, Google, Meta) also signals emerging industry norms around efficiency benchmarking, though methodology alignment remains inconsistent. Regulators and water-stressed jurisdictions may use this data to inform future data center approval decisions, making the accuracy and completeness of disclosure a competitive and policy lever.