Does the re-calibration of the as-built design energy model and the baseline model need to be done monthly during the 12 mos. M&V period, and then corrective action taken monthly based on how close the historical data is to the modeled data, or does the building just wait until 12 mos. of data is collected and then go through the re-calibration of the two models and "corrective action" taken? If it's the latter case, then is the only requirement DURING the 12 mos. performance period to collect the energy usage data, whether through meters or through other variables from which the energy use of systems can be calculated?
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Marcus Sheffer
LEED Fellow7group / Energy Opportunities
LEEDuser Expert
5867 thumbs up
August 20, 2010 - 3:15 pm
No the calibration does not need to be undertaken every month during the M&V period. Yep the data gathering is the primary activity during the M&V period. Some of the calibration activities could begin during this period but that is not required.
Once you do calibrate the data be sure to closely examine the monthly actual vs predicted data to ensure a reasonable degree of accuracy. Do not rely soley on annual comparisons of total energy use alone.