High School HVAC Controls Optimization
Public school upgraded occupancy-based controls, linking HVAC to existing lighting sensors for demand reduction.
Stowe High School HVAC Controls Optimization
Vermont, USA, 2022
Design and Technologies
Integrated sensors triggered VAV box modulation, reducing ventilation in unoccupied zones. BACnet tied to BAS for real-time adjustments, compliant with ASHRAE 62.1.
Implementation and Challenges
Installation during summer break addressed wiring silos between electrical and HVAC contractors. Calibration overcame initial false triggers from hall traffic.
Results and Energy Savings
Electric use fell 25% (150,900 kWh/year, $16,500 savings); CO₂ emissions dropped 100 tons annually.
Summary
The big win was realized from shared sensors which amplified ROI.
Last updated on November 8, 2025
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