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

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).

Papamichael, Konstantinos M."Fenestration Systems as Luminaires of Varying Candle Power Distribution."1990 IEEE Industry Applications Society Annual Meeting, October 7-12, 1990 2 (1990). DOI

Lampert, Carl M, Yan Ping Ma, Agata R Pennisi, and Francesca Simone."Electrical and Optical Properties of Electrochromic Devices Utilizing Polymer Electrodes." (1990).

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

Schuman, Jennifer E, and Gregory J Ward."The Practical Computer in Design."5th International Conference on Systems Research, Informatics, and Cybernatics (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).

Byars, Nan, and Dariush K Arasteh."Design Options for Low-Conductivity Window Frames."Solar Energy Materials and Solar Cells 25 (1990) 143-148.

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

Ward, Gregory J."Visualization."Lighting Design + Application 20 (1990).

Klems, Joseph H, and M. M Susan Reilly."Window Nighttime U-Values: A Comparison Between Computer Calculations and MoWiTT Measurements."ASHRAE Transactions 96 (1990).

Klems, Joseph H."X-Ray Inverse Florescence Allowed by Molecular Excitation (XIFAME) as a Possible Contrast Mechanism for Chemically-Sensitive Imaging & Spectroscopy."Physical Review A-15 (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).

Arasteh, Dariush K."An Analysis of Frame and Edge Heat Transfer in Residential Windows."Thermal Performance of the Exterior Envelopes of Buildings IV Conference (1989).

Wruck, David A, S Ramamurthi, and Michael D Rubin."Sputtered Electrochromic V2O5 Films."Thin Solid Films 182.1-2 (1989) 79-85. DOI

Rubin, Michael D, Ian G Brown, E Yin, and David A Wruck."Ion Implantation of Sputtered Y-Ba-Cu-O Films."Journal of Applied Physics 66 (1989) 3940-3942. DOI

Ward, Gregory J."A Tool for Computing Luminance and Synthetic Images."IES Annual Conference (1989).

Johnson, Kenneth C."Chromatic Dispersion Compensation in a Fresnel Lens by Means of a Diffraction Grating."SPIE Optical Materials Technology for Energy Efficiency and Solar Conversion Conf. XIII (1989).

Lampert, Carl M, and R'Sue Caron-Popowich."Electron Microscopy and Electrochemistry of Nickel Oxide Films for Electrochromic Devices Produced by Different Techniques."SPIE Optical and Optoelectronic Applied Science and Engineering Conference 1149 (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).

Rubinstein, Francis M, Rudolph R Verderber, and Gregory J Ward."Photoelectric Control of Daylight-Following Lighting Systems." (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).

Arasteh, Dariush K, M. M Susan Reilly, and Michael D Rubin."A Versatile Procedure for Calculating Heat Transfer Through Windows."ASHRAE Transactions 95 (1989).