Acta MalaysiaACTAMALAYSIA
All case studies

Cooling a tropical campus on measured demand

Commercial office campus, Kuala Lumpur · 3 towers · 96,000 m² · 8 months

Measured outcomes

-18%
kWh per m²
-22%
Chiller plant kW/RT
94%
Hours within comfort band
11 mo
Payback period

Starting point

Chillers ran to a fixed schedule set years earlier. Tenant complaints drove manual setpoint changes, and energy was billed at building level with no way to attribute consumption.

Comfort improved and the bill fell — that combination convinced the board.
Facilities Director

What we deployed

  • Chiller plant analytics with sequencing and condenser-approach monitoring
  • Floor-level sub-metering for lighting, small power and HVAC
  • CO₂ and occupancy sensing driving ventilation and zone setpoints
  • Comfort-versus-energy dashboard reviewed monthly with the FM team

What changed

  • Setpoint changes justified by measurement rather than by complaint volume
  • Tenant energy attributed per floor for recharging and ESG reporting
  • Maintenance scheduled on plant efficiency drift, not calendar intervals

Client names are withheld under commercial confidentiality; figures are drawn from post-deployment reviews agreed with each client.