Cutting cooling energy costs with smart HVAC & ACMV optimisation

In Singapore’s tropical climate, cooling can account for up to 40% of a building’s total energy use. As the government raises the carbon tax to S$50–S$80 per tonne CO₂e by 2030 and drives the Singapore Green Plan 2030, facility owners face growing pressure to cut energy costs and reduce emissions. 

Why Traditional HVAC and ACMV Systems Waste Energy 

Heating, Ventilation and Air-Conditioning (HVAC) and Air-Conditioning & Mechanical Ventilation (ACMV) systems are essential for comfort and air quality. Yet, many operate on fixed schedules and outdated controls, causing: 

• Over-cooling when occupancy is low 

• High peak-load consumption during hot periods 

• Limited visibility of equipment faults or inefficiencies 

These issues raise both utility bills and a building’s carbon footprint, a challenge echoed in the International Energy Agency’s report on the future of cooling. 

Smarter Optimisation with VG Optima 

VG Optima helps organisations transform cooling from a cost centre into a strategic advantage. It uses AI-driven analytics and machine learning to continuously fine-tune HVAC and ACMV performance: 

• Real-time optimisation – algorithms adjust chiller and ventilation settings based on occupancy, weather and load. 

• Space energy-saving kit – sensors capture accurate power-usage data across zones to reveal hidden inefficiencies. 

• Predictive maintenance – intelligent alerts highlight anomalies before they become expensive failures. 

• Seamless integration – works with existing Building Management Systems (BMS) for fast deployment without major retrofits. 

The Business Case 

With cooling costs rising and ESG performance already influencing public-sector tenders under the Price-Quality Method, smarter utility optimisation delivers both financial and reputational benefits: 

• Lower electricity bills and stronger ROI 

• Reduced carbon tax exposure 

• Higher BCA Green Mark ratings and improved sustainability credentials 

Ready to cut cooling costs and meet your sustainability targets? 
Contact Vector Green to explore how VG Optima can help you achieve efficient, future-ready operations.