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Energy Management
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Load Shedding for Electric Chillers
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At Western Michigan University we are doing our part to minimize our carbon footprint by reducing our electrical usage during peak demand hours. Load shedding for our on-campus electric chillers is one way we do this. Using historical data trending techniques, engineers at the WMU Physical Plant determine a peak demand set point for each day. The peak demand set point is programmed into the Building Automation System [BAS] which is used to trigger a rolling shutdown of each of the electric chillers located on campus. Depending on the duration of the shutdown for each chiller, electrical usage on campus is reduced in excess of 2 megawatts! The potential of load shedding can add up to a significant savings to the university and offset more than 20 metric tons of sulphure dioxide, carbon dioxide and nitrogen oxide, all greenhouse gases.
