Overview
Personal Profile
Scott Horowitz focuses on residential building energy modeling (BEM) software tools, standards, and analysis. He is the technical lead on multiple projects that improve the accuracy, consistency, and capability of government and industry BEM software.
Horowitz leads the development of several residential tools, including BEopt™, Home Energy Score, OpenStudio-HPXML, and Energy Rating Index (ERI), and was a founding developer for ResStock, an R&D 100 Award Winner. He also contributes to additional BEM tools including Weatherization Assistant, EnergyPlus, and OpenStudio.
Horowitz is a recognized expert in residential BEM, has been cited in over 1,000 publications, and contributes to industry organizations including RESNET®, BPI, ASHRAE, and IBPSA.
Research Interests
Building energy modeling
Optimization and calibration
Building data exchange standardization
Building stock simulation
Open-source software
Professional Experience
Prior to joining NLR in 2007, Horowitz completed his master's degree in building systems engineering at the University of Colorado Boulder, where his research focused on developing cost-based optimization techniques for residential buildings, and was a member of University of Colorado's first place Solar Decathlon team. Horowitz also has a bachelor's degree in mechanical engineering from Rutgers University.
Education/Academic Qualification
Bachelor, Mechanical Engineering, Rutgers University
Master, Civil Engineering, University of Colorado Boulder
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Collaborations and Top Research Areas From the Past 5 Years
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ResStock Technical Reference Documentation v3.3.0
Reyna, J., Fontanini, A., Present, E., Liu, L., Adhikari, R., Bianchi, C., Brossman, J., Chintala, R., Clark, K., Harris, C., Horowitz, S., Lou, Y., Maguire, J., Merket, N., Moore, N., Munankarmi, P., Robertson, J., Sandoval, N., Speake, A. & Stenger, K. & 2 others, , 2025, 252 p.Research output: NLR › Technical Report
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An Energy Rating Index Software Tool for the Residential Buildings Industry: Cooperative Research and Development Final Report, CRADA Number CRD-18-00774
Horowitz, S., 2024, 7 p.Research output: NLR › Technical Report
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Choosing the Best Carbon Factor for the Job: Exploring Available Carbon Emissions Factors and the Impact of Factor Selection: Preprint
Present, E., Gagnon, P., Wilson, E., Merket, N., White, P. & Horowitz, S., 2024. 19 p.Research output: Contribution to conference › Paper
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The Role of Above-Code Labeling Programs in Reducing CO2e Emissions in Residential Buildings: Article No. 114069
Park, B., Horowitz, S. & Roberts, D., 2024, In: Energy and Buildings. 309, 15 p.Research output: Contribution to journal › Article › peer-review
4 Scopus Citations -
Component-Level Analysis of Heating and Cooling Loads in the U.S. Residential Building Stock: Article No. 113559
Speake, A., Wilson, E., Zhou, Y. & Horowitz, S., 2023, In: Energy and Buildings. 299, 11 p.Research output: Contribution to journal › Article › peer-review
11 Scopus Citations