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Energy and Environment Directorate

Zachary Taylor

Zachary Taylor

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 375-2676


Todd Taylor has conducted analysis and directed development efforts for building energy codes and standards, influencing the International Energy Conservation Code, ASHRAE Standard 90.2, the Manufactured Housing Construction and Safety Standards, standards for federal residences, regional codes in the Pacific Northwest, and other residential energy standards and efficiency programs. Specializing in largescale building simulation, economic analysis, and large-scale metering and analysis of buildings and utility grids, Todd has authored or co-authored several of the most significant IECC code changes to impact residential energy consumption over the last two decades. For more than 30 years, he has conducted analysis of metered buildings and electric utility grids, having most recently served as chief analyst for the Pacific Northwest Smart Grid Demonstration Program.

Research Interests

  • Large-Scale Building Energy Simulation
  • Economic Analysis of Energy Efficiency Technology
  • Thermodynamic and Statistical Analysis of Large Energy Performance Datasets
  • Analysis of Building Impacts on Electric Utility Grids

Education and Credentials

  • M. Eng., Mechanical Engineering, Texas A&M University, College Station
  • B.S., Mechanical Engineering, Texas A&M University, College Station

PNNL Publications


  • Burleyson CD, N Voisin, ZT Taylor, YL Xie, and IP Kraucunas. 2018. "Simulated Building Energy Demand Biases Resulting from the Use of Representative Weather Stations." Applied Energy 209:516-528.  doi:10.1016/j.apenergy.2017.08.244




  • Mendon VV, and ZT Taylor. 2014. "Development of Residential Prototype Building Models and Analysis System for Large-Scale Energy Efficiency Studies Using EnergyPlus." In ASHRAE/IBPSA-USA Building Simulation Conference, September 10-12, 2014, Atlanta, Georgia, pp. 457-464.  ASHRAE, Atlanta, GA. 
  • Mendon VV, ZT Taylor, SU Rao, and YL Xie. 2014. Preliminary Determination Analysis of the 2015 IECCPNNL-23438, Pacific Northwest National Laboratory, Richland, WA. 
  • Somasundaram S, RG Pratt, BA Akyol, N Fernandez, NAF Foster, S Katipamula, ET Mayhorn, A Somani, AC Steckley, and ZT Taylor. 2014. Transaction-Based Building Controls Framework, Volume 1: Reference GuidePNNL-23302, Pacific Northwest National Laboratory, Richland, WA. 
  • Taylor ZT, and VV Mendon. 2014. Identification of RESNET HERS Index Values Corresponding to Minimal Complicance with the IECC Performance PathPNNL-22560, Pacific Northwest National Laboratory, Richland, WA. 
  • Taylor ZT, and VV Mendon. 2014. "The Marriage of Residential Energy Codes and Rating Systems: Conflict Resolution or Just Conflict?" Chapter 1 in ACEEE Summer Study on Energy Efficiency in Buildings: The Next Generation: Reaching for High Energy Savings, August 17-22, 2014, Pacific Grove, California, pp. 1-326 - 1-338.  American Council for an Energy-Efficient Economy, Washington DC. 





  • Lu N, ZT Taylor, W Jiang, C Jin, J Correia, Jr, LYR Leung, and PC Wong. 2010. "Climate Change Impacts on Residential and Commercial Loads in the Western U.S. Grid." IEEE Transactions on Power Systems 25(1):480-488. 


  • Lu N, ZT Taylor, W Jiang, J Correia, Jr, LR Leung, and PC Wong. 2009. "The Temperature Sensitivity of the Residential Load and Commercial Building Load." In IEEE Power & Energy Society General Meeting (PES '09), July 26-30, 2009, Calgary, Alberta, Canada, ed. .  IEEE, Piscataway, NJ.  doi:10.1109/PES.2009.5275654
  • Taylor ZT. 2009. Technical Support Document for a Proposed IECC Glazing Orientation RestrictionPNNL-18038, Pacific Northwest National Laboratory, Richland, WA. 
  • Bartlett R, LM Connell, K Gowri, RG Lucas, RW Schultz, ZT Taylor, and JD Wiberg. 2009. Methodology for Developing the REScheckTM Software through Version 4.2 PNNL-18707, Pacific Northwest National Laboratory, Richland, WA. 
  • Wong PC, LYR Leung, N Lu, MJ Scott, PS Mackey, HP Foote, J Correia, Jr, ZT Taylor, J Xu, SD Unwin, and AP Sanfilippo. 2009. "Designing a Collaborative Visual Analytics Tool for Social and Technological Change Prediction." IEEE Computer Graphics and Applications 29(5):58-68.  doi:10.1109/MCG.2009.92
  • Wong PC, LYR Leung, N Lu, ML Paget, J Correia, Jr, W Jiang, PS Mackey, ZT Taylor, YL Xie, J Xu, SD Unwin, and AP Sanfilippo. 2009. "Predicting the Impact of Climate Change on U.S. Power Grids and Its Wider Implications on National Security." In AAAI Spring Symposium on Technosocial Predictive Analytics, vol. SS-09-09, pp. 148-153.  AAAI Press, Menlo Park, CA. 



  • Cole PC, and ZT Taylor. 2006. "Energy Conservation Code Decoded." Home Energy 25(3):14. 
  • Somasundaram S, DW Winiarski, ZT Taylor, and RE Jarnagin. 2006. "Energy Simulations of Commercial Buildings for DOE's Standards Development Projects." In 18th National & 7th ISHMT-ASME Heat and Mass Transfer Conference, January 4-6, 2006, Indian Institute of Technology, Guwahati, India, ed. S.C.Mishra, B.V.S.S.S. Prasad, S.V. Garimella, pp. 2274-2281.  Tate McGraw-Hill Publishing Company Limited, New Delhi, India. 


  • Bartlett R, LM Connell, RG Lucas, RW Schultz, ZT Taylor, and JD Wiberg. 2005. Methodology for Developing the REScheck Software through Version 3.7PNNL-14864-1-2, Pacific Northwest National Laboratory, Richland, WA. 
  • Lu N, ZT Taylor, DP Chassin, RT Guttromson, and SS Studham. 2005. "Parallel Computing Environments and Methods for Power Distribution System Simulation." In Power Engineering Society General Meeting, San Francisco, CA, June 12-16, 2005, pp. 203-208.  IEEE Power Engineering Society, Piscataway, NJ. 

Energy and Environment

Core Research Areas