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CS-2009 EAc5.1:Measurement and Verification—Base Building

Energy Model Calibration by Post Construction data

Our Project is applying for M&V plan option D method 2, which let us calibrate the energy model with post construction measures. Because of the electrical circuits we can measure the total building consumption, and individually the HVAC and Elevators consumption, while the lighting, pumps, and common areas services consumption can be estimated by calculating the operation time controlled on each item. Is it valid to calibrate the energy model with these methodology?

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Mon, 07/08/2013 - 18:37

You can gather data on systems without submetering the energy use. Run time works for some constant loads. Spot measurements and short-term trending works too. Fundamentally what information do you need to calibrate the energy model? This depends on the systems and the M&V budget. From your list above I do not see fans, heating, cooling, service hot water, and plug loads that are typically found in many projects. Your methodology is contained in your M&V Plan so make sure you include information on the data you will gather for each energy end use and also related to other modeling parameters like schedules and weather.

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