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Achieving 30% Energy Reduction with Occupancy-Based HVAC Control

November 3, 2026

Ventilation in office space usually runs on a schedule, whether anyone is there or not.

Elizabeth Redmond (Head of Strategic Accounts, RZero), Katie Froncek (Space Database Specialist, Stanford Medicine Children's Health), and Bryan Ciraolo (Facility System Engineer, Stanford Medicine Children's Health) explain how live occupant counts now drive ventilation across 74 VAV zones through a retrofit gateway, with no mechanical modifications. A measured study showed 23% energy savings with no comfort or air quality complaints.

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Recording

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Ventilation in office space usually runs on a schedule, whether anyone is there or not.

Watch the full recording and download the slides with Nexus Pro.

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