About Us +
Researchers in the Building Technology & Urban Systems Division (BTUS) at Lawrence Berkeley National Laboratory develop data and technologies that increase energy efficiency and improve the health, safety and comfort of building occupants, in the United States and worldwide.

We work closely with industry partners, academics and government officials to achieve these goals, and share our research widely
Research +
We are at the forefront of cutting-edge research that redefines building technology and explores all areas of urban systems.

We have been leaders for decades in developing energy-efficient windows, improving indoor air quality, coming up with new ideas to fix the nation's electricity grid, and so much more.

Visit our research areas at the right to find out more.
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Publications +
Enjoy presentations from Building Technology & Urban systems research experts on a wide variety of topics in the areas of building energy efficiency, the electricity grid and how it relates to buildings and much more.
- Presentations
News
Tools & Guides +
Explore our tools, guidebooks and software and download for free.

We offer a variety of technologies designed to simulate and model real-world circumstances to assist in energy-saving programs and help building owners build better buildings. These tools can help calculate performance of building systems like windows and shades, help consumers and builders pick the best windows for a variety of applications and much more.

Publications

Publications By Research Area

1992

Reilly, M. M Susan, Stephen E Selkowitz, and Frederick C Winkelmann."Switchable Window Modeling." (1992).

Schuman, Jennifer E, Francis M Rubinstein, Konstantinos M Papamichael, Liliana O Beltran, Eleanor S Lee, and Stephen E Selkowitz."Technology Reviews: Daylighting Optical Systems." (1992).

Schuman, Jennifer E, Francis M Rubinstein, Konstantinos M Papamichael, Liliana O Beltran, Eleanor S Lee, and Stephen E Selkowitz."Technology Reviews: Dynamic Curtain Wall Systems." (1992).

Schuman, Jennifer E, Francis M Rubinstein, Konstantinos M Papamichael, Liliana O Beltran, Eleanor S Lee, and Stephen E Selkowitz."Technology Reviews: Glazing Systems." (1992).

Schuman, Jennifer E, Francis M Rubinstein, Konstantinos M Papamichael, Liliana O Beltran, Eleanor S Lee, and Stephen E Selkowitz."Technology Reviews: Lighting Systems." (1992).

Schuman, Jennifer E, Francis M Rubinstein, Konstantinos M Papamichael, Liliana O Beltran, Eleanor S Lee, and Stephen E Selkowitz."Technology Reviews: Shading Systems." (1992).

1991

Griffith, Brent T, Dariush K Arasteh, and Stephen E Selkowitz."Gas-Filled Panel High-Performance Thermal Insulation."Insulation Materials: Testing and Applications 2 (1991).

Arasteh, Dariush K, and Stephen E Selkowitz."Energy Conservation Through Vacuum Coatings."Society of Vacuum Coaters (SVC) 34th Annual Technical Conference (1991).

Sullivan, Robert, B Chin, Dariush K Arasteh, and Stephen E Selkowitz."RESFEN: A Residential Fenestration Performance Design."ASHRAE Transactions 97, Part 2 (1991).

1990

Benton, Charles C, Marc C Fountain, Stephen E Selkowitz, and James E Jewell."Control System Performance in a Modern Daylighted Office Building."VIII International Scientific and Technical Conference on Illumination, Lighting 90 (1990).

Arasteh, Dariush K, Brent T Griffith, and Stephen E Selkowitz."Super-Insulated Gas-Filled Panels." (1990).

Sullivan, Robert, Michael Wilde, and Stephen E Selkowitz."An Interactive Microcomputer-Based Kiosk Providing Energy Efficient Building Design Information."4th National Conference on Microcomputer Applications in Energy (1990).

Selkowitz, Stephen E, and Carl M Lampert."Application of Large-Area Chromogenics to Architectural Glazings."Large Area Chromogenics: Materials and Devices for Transmittance Control (1990).

Reilly, M. M Susan, Dariush K Arasteh, and Stephen E Selkowitz."Thermal and Optical Analysis of Switchable Window Glazings."Solar Energy Materials 22 (1990).

1989

Arasteh, Dariush K, and Stephen E Selkowitz."A Superwindow Field Demonstration Program in Northwest Montana."Thermal Performance of the Exterior Envelopes of Buildings IV Conference (1989).

Schuman, Jennifer E, and Stephen E Selkowitz."A Daylight Design Tool Using a Hypertext Format."11th International Congress CIB 1989 (1989).

Sullivan, Robert, and Stephen E Selkowitz."Development of a Methodology to Evaluate the Energy and Comfort Performance to Fenestration."International Building Performance Simulation Association Building Simulation 89 Conference (1989).

Arasteh, Dariush K, Stephen E Selkowitz, and John R Wolfe."The Design and Testing of a Highly Insulating Glazing System for Use with Conventional Window Systems."Journal of Solar Energy Engineering 111.1 (1989) 44-53. DOI

Schuman, Jennifer E, Robert Sullivan, Stephen E Selkowitz, Michael Wilde, and Michael D Kroelinger."A Daylight Design Tool Using a Hypercard on the Macintosh."3rd National Conference on Microcomputer Applications in Energy (1989).

Selkowitz, Stephen E."Daylighting Technology Assessment: Final Report. NYSERDA." (1989).

Sullivan, Robert, and Stephen E Selkowitz."Fenestration Performance Analysis Using an Interactive Graphics-Based Methodology on a Microcomputer."ASHRAE Transactions 95 (1989).

1988

Papamichael, Konstantinos M, Joseph H Klems, and Stephen E Selkowitz."Determination and Application of Bidirectional Solar-Optical Properties of Fenestration Systems."13th National Passive Solar Conference (1988).

Sullivan, Robert, Dariush K Arasteh, Konstantinos M Papamichael, Jong-Jin Kim, Russell Johnson, Stephen E Selkowitz, and Ross McCluney."An Indices Approach for Evaluating the Performance of Fenestration Systems in Nonresidential Buildings."ASHRAE Transactions 94 (1988).

1987

Sullivan, Robert, Dariush K Arasteh, Glenn Sweitzer, Russell Johnson, and Stephen E Selkowitz."The Influence of Glazing Selection on Commercial Building Energy Performance in Hot and Humid Climates."ASHRAE Conference on Air Conditioning in Hot Climates (1987).

Sweitzer, Glenn, Dariush K Arasteh, and Stephen E Selkowitz."Effects of Low-E Glazing on Energy Use Patterns in Nonresidential Daylighting Buildings."ASHRAE Transactions 93 (1987) 1553-1566.