By Wong Weng Yew, Founder and Managing Director, Open DC Malaysia is undergoing an unprecedented digital infrastructure transformation. Johor Bahru alone has seen staggering growth, placing it among the top three fastest-growing data centre markets in Asia-Pacific. But as AI workloads push rack densities to levels the industry was never designed to handle, our sector […]
By Wong Weng Yew, Founder and Managing Director, Open DC
Malaysia is undergoing an unprecedented digital infrastructure transformation. Johor Bahru alone has seen staggering growth, placing it among the top three fastest-growing data centre markets in Asia-Pacific.
But as AI workloads push rack densities to levels the industry was never designed to handle, our sector faces a critical reckoning. As demand for digital infrastructure grows, we must scale in a way that is both commercially viable and environmentally responsible. It is time for an honest assessment: which green solutions are genuinely moving the needle today, and which are merely marketing aspirations?
Cooling is no longer just a back-end engineering issue; it is the primary determinant of cost, resilience, and sustainability. In Malaysia, we operate under a “tropical penalty”. Our inherent heat and humidity mean we cannot rely on the natural free cooling enjoyed by temperate markets.
To future-proof our digital economy, we must adopt a tiered, workload-specific cooling strategy. For standard enterprise workloads, air cooling remains practical. However, the physics of the data hall are changing. High-density AI and GPU clusters demand advanced solutions. Direct-to-chip liquid cooling—which delivers 30-50% better energy efficiency than traditional air systems—is no longer a future roadmap item; it is an absolute necessity. At our PE2 facility in Penang, we have deployed a diverse array of these systems, achieving an impressive design Power Usage Effectiveness (PUE) of less than 1.5.
However, we cannot solve the power crisis by triggering a water crisis. Water is the emerging sustainability blind spot. With water-stressed corridors in both Johor and Selangor, Water Usage Effectiveness (WUE) is rapidly replacing power availability as the ultimate approval constraint. Operators must proactively design near-zero water usage cooling pathways for high-density racks rather than scrambling to retrofit when regulations inevitably tighten.
When discussing green energy in Malaysia, we must ground our ambitions in reality. Our national grid remains predominantly powered by coal and gas. Even a facility with rooftop solar and a green tariff draws heavily from a carbon-intensive baseline.
At Open DC, we look at the clean-energy toolkit pragmatically:
With hyperscalers bringing global net-zero pledges and deep pockets into Johor and Cyberjaya, there is a risk of a two-tier market forming. But domestic operators do not need to sit on the sidelines.
Malaysia needs proactive, investment-friendly guardrails that balance growth with sustainability. We do not need a blunt moratorium on development, which would risk stalling our momentum as an ASEAN digital hub.
Instead, the industry must push for mandatory disclosure requirements with real penalties. We must distinguish between responsible growth—such as AI-ready facilities equipped with renewable pathways and efficient cooling—and speculative builds with poor water and power strategies.
We are at a tipping point. The task ahead is raising the bar from “select best-in-class operators” to an uncompromising “industry standard”. That is the work in front of all of us.
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