USING PYTHON AND EPPY FOR A LARGE NATIONAL SIMULATION STUDY
A large study was performed using EnergyPlus to
assess the maximum technically achievable energy
targets for commercial buildings. The study looked at
16 different building models across 17 climates based
on the PNNL prototype building models and applied 30
different “maxtech” energy efficiency measures to
each. In order to perform the analysis, scripts were
developed to modify each building model to implement
each individual energy efficiency measures using the
open source Eppy scripting library based on Python. In
addition, Python was used to automatically extract
results, analyze error messages, manage the selection of
measure options, and produce summary tables.
Simulations were run on a variety of computers, some
local and some on the cloud, and managed by a Python
script to optimize the use of resources. Data from all
simulations was sent to a central location with remote
monitoring. The strengths and weaknesses of the
overall approach will be discussed as well as lessons
learned by performing the overall analysis, the use of
EnergyPlus, Eppy and Python scripting. The results of
the analysis are presented in the final report and in a
future paper. This paper focuses on the use of scripting
to perform the analysis.
Athalye, Rahul 2010. QuickSim Analysis Report. Althalye, R.A. et.al. Pacific Northwest National Laboratory. PNNL-19661.
EnergyPlus 2015. U.S. Department of Energy, Energy Efficiency and Renewable Energy, Office of BuildingTechnologies. http://www.energyplus.net/
Glazer, Jason 2016. ASHRAE 1651-RP Final Report. Development of Maximum Technically Achievable Energy Targets for Commercial Buildings - UltraLow Energy Use Building Set. GARD Analytics, Inc, and ASHRAE, Atlanta, GA.
Halverson, Mark 2014. ANSI/ASHRAE/IES Standard 90.1-2013 Determination of Energy Savings: Quantitative Analysis. M. Halverson, R. Athalye, M. Rosenberg, Y. Xie, W. Wang, R. Hart, J. Zhang, S. Goel, V. Mendon. Pacific Northwest National Laboratory. PNNL-23479.
Philip, Santosh 2015. Eppy scripting langues for EnergyPlus idf files and EnergyPlus output files. https://github.com/santoshphilip/eppy, https://pypi.python.org/pypi/eppy/, http://pythonhosted.org//eppy/. Loisos + Ubbelohde. Alameda, CA.
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