Abstract: Energy Efficiency and Commissioning

By Geoffrey C. Bell, P.E. and Mary Ann Piette

EMCS assists Cx

A laboratory facility will waste energy if the process of commissioning does not ensure efficient operation. Although commissioning may be thought of as a final step, it actually begins when the first new or retrofit construction design concept is formulated with a commissioning plan. Commissioning continues during construction with equipment submittal reviews and system installation verifications. These phases of the commissioning process occur even before building systems are functional. The next phases are calibrating each energy-consuming system to operate reliably at minimum levels that meet design criteria, and measuring performance in all modes of operation. Fine tuning and eliminating cross-control inefficiencies that increase the facility's energy demand and consumption are also steps in the commissioning process. The rewards of good commissioning can be seen when a facility's energy consumption is rechecked after one year of operation. An ongoing efficiency assurance program for the facility's life pays for itself in saved energy and reduced maintenance costs. Commissioning costs should be automatically included in a facility's capital costs to ensure that the facility is fully functional at the time of occupancy. [Kjellman, 1996] [Heinz and McCray, 1996]

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