Eric Oliver, P.E., C.E.M., LEED AP
Vice President, Energy Services
Building owners are always looking for creative ways to reduce their energy consumption. The first step in an energy reduction strategy is an Energy Audit, which is very effective at determining the most cost effective strategies for saving energy in a building, but there are shortcomings. An audit can provide an excellent snapshot of the buildings operations, but not the full picture of variations throughout the year. In addition, savings calculations for ECMs are based on assumptions for inputs such as runtimes and temperature setpoints. If these assumptions are not accurate, the savings may be underpredicted, or overpredicted. To achieve the maximum energy savings with the most accurate calculations, it would be essential to survey the building over all seasons, with accurate data for all energy consuming systems, using a process known as Continuous Energy Auditing. With Continuous Energy Auditing, an auditor performs an initial building assessment and gathers data relating to all energy consuming systems. Then, the Owner installs a comprehensive Real Time Energy Monitoring (RTEM) and networked thermostat system. This data is fed to a dashboard in real time, where the auditor can perform Data Analytics over a 6-12 month period, and identify and mitigate energy waste continuously. Experience shows that an additional 10% to 20% energy savings can be identified using Continuous Energy Auditing. The net result is a building operating at its peak efficiency, over the course of all seasons.
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