Case Study: Airport Terminal Building achieves over $100K verified energy cost savings in 12 months with IBM Envizi ESG Suite

Airport terminal building Over $100k energy cost savings measured & verified over the first 12 months

Airport Terminal Building, a domestic terminal with more than 200,000 m2 and a legacy Honeywell BMS, faced complex, energy‑intensive HVAC systems with little equipment‑level visibility and no way to detect wastage or verify the financial impact of maintenance and optimization. To address this, the site engaged IBM Envizi ESG Suite, deploying the Equipment Fault Detection Module and software metering on 50 of the largest AHUs and RAFs to create the granular monitoring needed.

Using IBM Envizi ESG Suite, the vendor identified several inefficiencies—units running 24×7, missing supply‑air pressure reset on VAV AHUs, opportunities for heating/cooling stop‑time optimization, outdoor dampers admitting conditioned air when CO2 was below 700 ppm, and unused economy cycle dampers—then prioritized fixes. The solution demonstrated the ability to monitor an aged BMS and deliver analytics‑driven actions that produced measurable results: over $100k in energy cost savings measured and verified in the first 12 months.