Introduction

Artificial intelligence is driving an unprecedented surge in data centre demand across Asia. Every query processed, every model trained, every byte stored carries a physical cost measured in electricity and water. As Singapore and its neighbours compete to capture a share of the region’s digital infrastructure boom, the resource footprint of data centres is emerging as both a critical constraint on growth and a growing sustainability challenge — one that regulators in the region’s two most important data centre markets, Singapore and Malaysia, are now actively managing.

Asia’s Data Centre Surge

Southeast Asia is among the fastest-growing data centre markets globally, with capacity forecast to grow at 19.4% per year from 2022 to 2026. The Asia-Pacific region consumed around 320 TWh of electricity from data centres in 2024; that figure is projected to reach 780 TWh by 2030 — a 165% increase in six years, driven by cloud migration, AI workloads, and enterprise digitalisation.

Regional Data Centre Landscape (2025)

Market	Capacity (Feb 2025)	Outlook / Constraint
Singapore	~1 GW operational	700 MW new (Jurong Island) via DC-CFA2; land-constrained
Malaysia	507 MW operational; 123 facilities in pipeline	Non-AI data centre pause; 5.9 GW demand secured vs TNB grid
Asia-Pacific (total)	~320 TWh electricity (2024)	~780 TWh projected by 2030 (+165%)
Singapore water demand	~48bn litres/year (2025)	~65.55bn litres/year by 2030 (+36%)

Singapore: Efficiency as the Price of Admission

Singapore, with approximately 1 GW of operational capacity, ranks fifth globally in data centre scale. Land scarcity and constrained power supply have forced the government to manage approvals carefully since a 2019 moratorium was partially lifted in 2022. The focus has definitively shifted from volume to efficiency. Singapore’s DC-CFA2 programme, launched on 1 December 2025, requires new operators to source at least 50% of power from approved green energy pathways and to achieve a Power Usage Effectiveness (PUE) ratio of no more than 1.25 at full load. A 700 MW low-carbon data centre park on Jurong Island — representing a roughly 50% increase in Singapore’s total data centre supply — will be developed under these conditions.

Water is an equally pressing constraint. Data centres use water primarily for cooling, and Singapore’s projected demand of 65.55 billion litres per year by 2030 — up 36% from 2025 levels — is a serious concern for a city that imports a significant proportion of its freshwater. In Singapore’s tropical climate, the inefficiency of air-cooled systems increases reliance on water-based heat rejection, making water stewardship an operational, not merely environmental, priority.

Malaysia: Growth Under Pressure

Malaysia has emerged as Southeast Asia’s fastest-growing data centre market and, for some operators, a pressure-release valve for Singapore’s constrained approvals. With 507 MW of operational capacity and 123 facilities in various stages of development or planning, Malaysia’s ambitions are substantial. However, the country’s power grid is straining under the pace of expansion.

The scale of the challenge is significant. As of December 2024, data centres had secured maximum demand commitments of 5.9 GW from the national utility Tenaga Nasional Berhad (TNB) — equivalent to 43% of TNB’s total supply capacity. Actual load utilisation stood at around 405 MW, but the contracted pipeline of capacity represents a structural obligation that will test grid resilience as projects reach commissioning. Projections indicate that data centres could eventually account for up to 20% of Malaysia’s total electricity consumption.

Water is an equally live issue. Malaysia’s government cited both power supply constraints and water shortages as drivers of its February 2026 decision to restrict new approvals for non-AI data centres — a moratorium expected to remain in effect for approximately two years. The distinction between AI-focused and general-purpose workloads reflects a deliberate policy choice to prioritise high-value, higher-margin infrastructure over commodity storage and compute. Malaysia is simultaneously accelerating new generation capacity through co-generation, open cycle gas turbines, and phased extensions of existing plants to relieve grid pressure by 2026–2027.

Summary

Data centres are indispensable to the digital economy, but their resource consumption can no longer be treated as an externality. For investors, operators, and policymakers in Asia, integrating energy and water metrics into data centre approvals, procurement strategies, and corporate disclosures is now a commercial and regulatory necessity. Singapore’s DC-CFA2 efficiency mandate and Malaysia’s non-AI moratorium are the region’s most concrete expressions of a new resource-constrained reality — and a template that other Asian jurisdictions are watching closely.