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Sign upJanuary 1, 2018
University of Cambridge
Cambridge
The University of Cambridge faced a multitude of energy and carbon reduction challenges, starting with tackling their high hourly energy bill whilst providing the best learning environments for building users. They began a pilot with LightFi for demand based ventilation in the Biffen lecture theater; a 200 square meter room which can accommodate 170 students. LightFi installed occupancy and environment sensors, which, connected to their platform, allowed them to control the ventilation based on the number of people detected in the room: OFF when below 1/3 occupancy, low between 1⁄3 and 2⁄3, and high when the occupancy is above 2/3.
- Reduced air handling unit operational hours from 10 to 2.7 hours per day, resulting in an 84% decrease in energy consumption.
- Achieved a return on investment within 10 months of implementation.
Buildings are responsible for 30% of final energy consumption, but upgrading their energy efficiency is complicated and expensive. LightFi is an easy-to-install retrofit solution that requires no rewiring and can connect to existing Building Management Systems. It’s sensors detect occupancy through WiFi radio to create responsive lighting and eating, Ventilation and Air Conditioning (HVAC), optimized to improve indoor air quality while reducing energy consumption. Furthermore, the sensors communicate via cellular networks, removing security risks involved in connecting through private/corporate Wifi network.
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