Analysis of a simplified calibration procedure for 18 design-phase building energy models
Name
Simplified_Calibration_-_manuscript.pdf
Description
Accepted version
Size
999.31 KB
Format
Adobe PDF
Checksum (MD5)
b8495426bcd03a289a373edf396bea7e
Author(s)
Reinhart, Christoph
Date Issued
January 2015
Journal
Journal of building performance simulation
Publisher
Informa UK Limited
Citation
Samuelsona, Holly W., Arash Ghorayshib and Christoph F. Reinhart. “Analysis of a simplified calibration procedure for 18 design-phase building energy models.” Journal of building performance simulation, vol. 9, no. 1, 2015, pp. 17–29 © 2015 The Author(s)
Version
Author's final manuscript
Abstract
This paper evaluates the accuracy of 18 design-phase building energy models, built according to LEED Canada protocol, and investigates the effectiveness of model calibration steps to improve simulation predictions with respect to measured energy data. These calibration steps, applied in professional practice, included inputting actual weather data, adding unregulated loads, revising plug loads (often with submetered data), and other simple updates. In sum, the design-phase energy models underpredicted the total measured energy consumption by 36%. Following the calibration steps, this error was reduced to a net 7% underprediction. For the monthly energy use intensity (EUI), the coefficient of variation of the root mean square error improved from 45% to 24%. Revising plug loads made the largest impact in these cases. This step increased the EUI by 15% median (32% mean) in the models. This impact far exceeded that of calibrating the weather data, even in a sensitivity test using extreme weather years.
MIT Department
Massachusetts Institute of Technology. Department of Architecture
Terms of Use
Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
https://doi.org/10.1080/19401493.2014.988752
