Executive Summary
Achieving world-class energy efficiency in dense urban environments has historically been constrained by land footprint and tropical ambient humidity. South IDC has engineered architectural innovations at its Tseung Kwan O hyperscale facility to achieve an annual average Power Usage Effectiveness (PUE) of 1.15 to 1.18, aligning with the highest international environmental sustainability and ESG standards.
1. Waterside Economization and Dynamic Free Cooling
During cooler winter and transitional months in Hong Kong, chiller compressors are bypassed entirely in favor of plate heat exchangers. Secondary cooling loops interface directly with cooling tower water, drastically lowering electrical parasitic loads and allowing 40MW+ IT critical infrastructure to operate at near-unity thermal efficiency.
2. High-Efficiency Modular 2N+1 UPS Power Train
Conventional double-conversion UPS systems often suffer efficiency degradation below 40% loading. South IDC deploys transformerless modular silicon-carbide (SiC) UPS architectures operating at 97.4% efficiency even under partial loads, virtually eliminating transformer core losses and reducing facility heat dissipation requirements.
3. AI-Driven DCIM Predictive Telemetry
Utilizing thousands of real-time environmental sensors mapped across rack intake and exhaust points, an automated neural control loop adjusts variable frequency drive (VFD) pumps and electronically commutated (EC) fans in real time. Cooling is delivered strictly on-demand to match dynamic GPU workloads, preventing over-cooling and maximizing green operational efficiency.