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Commercial Buildings Research Staff

Members of the Commercial Buildings research staff have backgrounds in architectural, civil, electrical, environmental, and mechanical engineering, as well as computer science, physics, and chemistry.

Photo of Brian Ball

Brian Ball, Ph.D., Senior Engineer

brian.ball@nrel.gov

Research Focus:

Modeling algorithms to calibrate building energy models; DEnCity

Specializes in:

Solving partial differential equations, nonlinear equations and optimization, multi-scale modeling and control of smart material systems; modeling, control, and simulation of physical systems; numerical analysis and numerical methods

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Photo of Kyle Benne

Kyle Benne, M.S., Engineer

kyle.benne@nrel.gov

Research Focus:

Software development supporting whole building energy simulation; large-scale data abstraction and interface design

Specializes in:

Graphical user interface development; HVAC system design and modeling; software configuration and package management

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Photo of Eric Bonnema

Eric Bonnema, M.S., Engineer

eric.bonnema@nrel.gov

Research Focus:

Sector-wide energy modeling; Advanced Energy Design Guides; 179D DOE Calculator

Specializes in:

Software development for building optimization and modeling; commercial sector whole-building energy simulation; scientific computing; software configuration and package management

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Photo of Larry Brackney

Larry Brackney, Ph.D., Section Manager

larry.brackney@nrel.gov

Research Focus:

Building sensing and user interface technologies; advanced combustion, air-handling, and hybrid powertrain controls; applied controls and systems modeling; section manager

Specializes in:

Developing and deploying advanced control systems for a variety of complex systems; developing controls for rapid prototyping, production tools, and analysis processes

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Photo of Alberta Carpenter

Alberta Carpenter, Ph.D., Senior Engineer

alberta.carpenter@nrel.gov

Research Focus:

U.S. Life Cycle Database; carbon accounting, energy accounting, and life cycle assessment projects for industrial materials and biofuels

Specializes in:

Life cycle assessment for the management of industrial by-products

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Photo of Michael Deru

Michael Deru, Ph.D., Section Manager

michael.deru@nrel.gov

Research Focus:

Whole building and system performance metrics; energy modeling; source energy and carbon accounting; U.S. Life Cycle Inventory Database; HVAC; ground heat and moisture transfer

Specializes in:

Development of analysis methods; metrics and necessary data for whole building and system performance energy and environmental performance; demonstrations and deployment of advanced technologies; energy modeling of advanced systems

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Photo of Ian Doebber

Ian Doebber, M.S., Engineer

ian.doebber@nrel.gov

Research Focus:

HVAC and fa├žade systems; advanced modeling programs

Specializes in:

Testing, modeling, and field monitoring of standard and advanced HVAC systems

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Photo of Kristin Field

Kristin Field, M.S., Engineer

kristin.field@nrel.gov

Research Focus:

DOE's Superior Energy Performance in Commercial Buildings; DOE Retailer Energy Alliance for restaurants

Specializes in:

Computer simulation of standard energy performance and improved energy-efficient design of commercial buildings; outreach for energy efficiency strategies

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Photo of Katherine Fleming

Katherine Fleming, Ph.D., Engineer

katherine.fleming@nrel.gov

Research Focus:

Software projects and web applications for research and commercial and non-profit organizations

Specializes in:

Database and Web applications for energy analysis of commercial buildings

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Photo of David Goldwasser

David Goldwasser, M.C.M., M.Arch., Contractor

david.goldwasser@nrel.gov

Research Focus:

Development, training, and user support for OpenStudio software

Specializes in:

Workflows and tools to integrate energy modeling into the architectural design process

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Photo of Luigi Gentile Polese

Luigi Gentile Polese, M.S., Senior Engineer

gentile.polese@nrel.gov

Research Focus:

OpenStudio open source processes and development; cross-platform software

Specializes in:

Protocol specifications and standards; architecture definitions; requirements engineering; software engineering methodologies; project management

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Photo of Brent Griffith

Brent Griffith, M.S., Senior Engineer

brent.griffith@nrel.gov

Research Focus:

EnergyPlus

Specializes in:

Large-scale, simulation-based studies of national opportunities in the commercial sector; simplified EnergyPlus modeling

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Photo of Rob Guglielmetti

Rob Guglielmetti, B.A., Engineer

robert.guglielmetti@nrel.gov

Research Focus:

Application of high dynamic-range imaging (simulations and photographs)

Specializes in:

Integration of physically-based lighting simulation with whole-building energy simulations

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Photo of Elaine Hale

Elaine Hale, Ph.D., Engineer

elaine.hale@nrel.gov

Research Focus:

Building energy simulation and radiance for daylighting simulation; policy-scale building energy simulation studies

Specializes in:

Analysis framework, mathematical analysis; optimization algorithms for large-scale and uncertain nonlinear programming

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Photo of Bob Hendron

Bob Hendron, M.S., M.B.A., Senior Engineer

bob.hendron@nrel.gov

Research Focus:

Advanced house performance analysis and field testing methods; technical and management support for the Building America Program

Specializes in:

Retrofit guides for existing commercial buildings; field test and analysis of prototype buildings; training curriculum for energy performance-based design-build processes

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Photo of Lesley Herrmann

Lesley Herrmann, M.S., Engineer

lesley.herrmann@nrel.gov

Research Focus:

Building energy modeling for low-energy design solutions for commercial buildings and military deployable shelters; liquid desiccant dehumidification applications for efficient air-conditioning strategies

Specializing in:

Design, model, and test innovative HVAC concepts; monitor and analyze building energy use; apply laboratory knowledge to recommend building design and operation; member of ASHRAE's technical committee for desiccant-based cooling and evaporative cooling

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Photo of Adam Hirsch

Adam Hirsch, Ph.D., Engineer

adam.hirsch@nrel.gov

Research Focus:

Commercial Building Partnerships; Advanced Energy Design Guides; International Energy Agency Solar Heating and Cooling Task 40/Energy Conservation in Buildings and Community Systems; Annex 52 project "Towards Net Zero Energy Buildings"

Specializes in:

Statistical and technical analysis to achieve 50% energy savings in commercial buildings; detailed energy measurements after occupancy; outreach programs

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Photo of Eric Kozubal

Eric Kozubal, M.S., Senior Engineer

eric.kozubal@nrel.gov

Research Focus:

HVAC systems design recommendations to manufacturers; ASHRAE standard 174 "Method of Test for Rating Desiccant-Based Dehumidification Equipment"

Specializes in:

Design, laboratory, and field testing of HVAC systems that use desiccants, evaporative cooling, and vapor compression technologies including manufacturer recommendations

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Photo of Feitau Kung

Feitau Kung, M.A., Engineer

feitau.kung@nrel.gov

Research Focus:

Guidance and tools for improved planning of energy measures and evaluation of system energy performance; outreach for improving energy savings in commercial buildings

Specializing in:

Technical and economic analysis of energy efficiency and renewable energy measures for buildings and campuses; sustainable energy planning

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Photo of Rois Langner

Rois Langner, M.S., Engineer

margarete.langner@nrel.gov

Research Focus:

Energy efficiency projects for military and large commercial retail buildings; outreach support for integrated design teams in procuring low and net zero energy building designs

Specializes in:

Energy modeling of new and existing buildings using EnergyPlus to analyze and optimize building design and performance

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Photo of Matt Leach

Matt Leach, M.S., Engineer

matt.leach@nrel.gov

Research Focus:

Energy simulation and whole-building integrated design solutions; 179D DOE Federal Tax Deduction Calculator; automated workflows to process energy simulations for commercial buildings; best practices for specifying whole-building absolute energy use targets; optimization-based business plan for net zero renovation projects

Specializing in:

Best practices for net zero renovation projects

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Photo of William Livingood

William Livingood, M.S., Acting Group Manager

william.livingood@nrel.gov

Research Focus:

Building performance monitoring; controls; systems engineering; test engineering; systems simulation

Specializing in:

Commercial Building Energy Alliances; end-use metering; distributed generation; combined heat and power

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Photo of Nicholas Long

Nicholas Long, B.S., Senior Engineer

nicholas.long@nrel.gov

Research Focus:

Energy analysis tools: OpenStudio and Building Component Library; building energy modeling and analysis training

Specializing in:

Building energy modeling and large-sector analyses of proposed codes and standards; multivariate, multi-objective optimization program (Opt-E-Plus) using EnergyPlus; software development and client/server software architecture

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Photo of Daniel Macumber

Daniel Macumber, M.S., Engineer

daniel.macumber@nrel.gov

Research Focus:

Development and maintenance of the OpenStudio software; maintenance of the OpenStudio SketchUp plug-in for defining building energy simulation geometry; interoperability with other software programs

Specializing in:

Scientific computing, statistical methods, control systems, and signal processing; development of a portable electronic auditing tool for commercial buildings

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Photo of James Page

James Page, Research Technician

james.page@nrel.gov

Research Focus:

Space allocation for experiments; setup, configuration, and repair of HVAC equipment

Specializing in:

Operation of all electronic test equipment and diagnosis and repair of electronic equipment and computer systems

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Photo of Andrew Parker

Andrew Parker, B.S., Engineer

andrew.parker@nrel.gov

Research Focus:

Process automation enabling easier design of high-performance buildings; energy audits on commercial buildings

Specializing in:

Building energy modeling; building energy auditing

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Photo of Shanti Pless

Shanti Pless, M.S., Section Manager

shanti.pless@nrel.gov

Research Focus:

Applied research and design processes for commercial building energy efficiency and building integrated renewable energy

Specializing in:

Cost-effective net zero energy commercial buildings; Advanced Energy Design Guides; whole buildings systems integration; facilitation of the integrated design/building process to create low and zero energy commercial buildings; best practices for controlling capital costs while reaching net zero energy goals

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Photo of Jennifer Scheib

Jennifer Scheib, M.S., Engineer

jennifer.scheib@nrel.gov

Research Focus:

Lighting energy efficiency for large commercial buildings; outreach support for integrated design teams in procuring low and net zero energy building designs

Specializing in:

Lighting control applications; physically-based daylighting simulation; high dynamic range imaging techniques; building occupant interaction and occupant comfort research

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Photo of Marjorie Scott

Marjorie Schott, B.S., Project Leader

marjorie.schott@nrel.gov

Research Focus:

Interface design of software tools (OpenStudio and the desktop Building Agent); web application design for Technology Portal, BCL, Model Maker, and HPBD; building data visualization design for Building Agent

Specializing in:

Interface design of software tools and web applications; design research; and data visualization

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Michael Sheppy

Michael Sheppy, M.S., Engineer

michael.sheppy@nrel.gov

Research Focus:

Innovative energy efficiency strategies for commercial buildings; improved plug and process loads; findings applied to NREL's Research Support Facility

Specializing in:

Commercial building energy efficiency; plug loads; measurement and verification; data centers; hospital energy monitoring

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Greg Stark

Greg Stark, P.E., M.S., M.B.A, Senior Engineer

greg.stark@nrel.gov

Research Focus:

Financing energy efficiency in small buildings; systems engineering-based building design

Specializing in:

Multi-building approaches (e.g., neighborhood- or community-based) to reducing energy use, with a focus on both engineering and economic challenges

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Justin Stein

Justin Stein, M.A.E., Engineer

justin.stein@nrel.gov

Research Focus:

Whole-building energy simulation and analysis for commercial buildings using EnergyPlus; improving and simplifying the building design and analysis processes

Specializing in:

Identifying and analyzing commercial building energy saving opportunities; improving energy analysis practices with a focus in grocery store refrigeration systems

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Daniel Studer

Daniel Studer, M.S., Engineer

daniel.studer@nrel.gov

Research Focus:

Development of NREL's Technology Portal project

Specializing in:

Whole-building energy simulations to identify large-scale areas for energy savings; optimization of commercial building energy consumption

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Alex Swindler

Alex Swindler, B.S., Engineer

alex.swindler@nrel.gov

Research Focus:

Iteration and release builds for OpenStudio software and the Building Component Library; web interfaces, databases, and support of energy analysis for commercial buildings; large-scale high-performance computing energy simulations and development of an image processing occupancy sensor

Specializes in:

Correcting computer software coding errors; build environment testing on newer operating systems and dependencies for interoperability; dashboard 3D energy systems integration visualization maintenance to provide live, interactive energy data superimposed in geographical space

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Paul Torcellini

Paul Torcellini, Ph.D., P.E., Manager, Commercial Buildings Group (On Temporary DOE Assignment)

paul.torcellini@nrel.gov

Research Focus:

Zero-energy buildings; whole building design and control optimization

Specializing in:

Energy Simulations; control algorithms; design delivery processes; zero energy building definitions

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Evan Weaver

Evan Weaver, B.S., Engineer

evan.weaver@nrel.gov

Research Focus:

Developing whole-building energy modeling tools

Specializing in:

Graphical user interface and algorithm development; power generation controls; engineering; sales and marketing

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