| Building Technology and Urban Systems

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.
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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.

1986

Warren, M, Charles C Benton, Rudolph R Verderber, Oliver C Morse, Stephen E Selkowitz, and James E Jewell."Evaluation of Integrated Lighting System Performance in a Large Daylighted Office Building."1986 ACEEE Summer Study on Energy Efficiency in Buildings, August 17-23, 1986 (1986).

Hollister, Donald D."Overview of Advances in Light Sources."SPIE Conference (1986).

Kessel, Jeffrey."Transmittance Measurements in the Integrating Sphere."Applied Optics 25 (1986) 2752-2756.

Verderber, Rudolph R."Energy and Lighting Decisions."ASEAN Workshop (1986).

Zhou, T, L Wang, Donald D Hollister, Sam M Berman, and Robert W Richardson."Magnetic Enhancement of Ultraviolet Radiation Efficiency of Low Pressure Hg-Ar Discharge."Journal of the Illuminating Engineering Society 16.1 (1986) 176-181. DOI

Littler, John G.F, and Philip Haves."Development of SERI-RES within the UK Passive Solar Programme."10th National Passive Solar Conference (1986).

Clark, T. T Alan, Francis M Rubinstein, Michael J Siminovitch, and Rudolph R Verderber."Maintaining Optimum Fluorescent Lamp Performance Under Elevated Temperature Conditions."Lighting Design + Application 17 (1986) 35-41.

Benton, Charles C, B Erwine, M Warren, and Stephen E Selkowitz."Field Measurement of Light Shelf Performance in a Major Office Installation."11th National Passive Solar Conference, June 8-14, 1986 (1986).

Sullivan, Robert, Yu Joe Huang, James Bull, Isaac Turiel, Ronald L Ritschard, and Stephen E Selkowitz."Thermal Analysis of Buildings - Configuration Perturbations and Observed Climate Interface."ASHRAE Transactions 92 (1986).

Berman, Sam M, and Robert W Richardson."Determination of the Excited State Density of an Optically Thick Line."Journal of Quantitative Spectroscopy and Radiation Transfer 37 (1986) 471-475.

Selkowitz, Stephen E, and J.W Griffith."Effective Daylighting in Buildings - Revisited."Lighting Design + Application (1986).

Akbari, Hashem, Diego Samano, Atila Mertol, Fred S Bauman, and Ron C Kammerud."The effect of variations in convection coefficients on thermal energy storage in buildings Part I - Interior partition walls."Energy and Buildings 9 (1986) 195-211. DOI

1985

Klems, Joseph H, and H Keller."Measured Net Energy Pergormance of Single Glazing Under Realistic Conditions."Proceedings of the ASHRAE/DOE/BTECC Conference (1985).

Eto, Joseph H."A Comparison of Weather Normalization Techniques for Commercial Building Energy Use."DOE/ASHRAE/BTECC Conference on Thermal Performance of the Exterior Envelopes of Buildings III (1985).

Arasteh, Dariush K, Stephen E Selkowitz, and John Hartmann."Detailed Thermal Performance Data on Conventional and Highly Insulating Window Systems."International Daylighting Conference (1985).

Johnson, Russell, Dariush K Arasteh, Deborah J Connell, and Stephen E Selkowitz."The Effect of Daylighting Strategies on Building Cooling Loads and Overall Energy Performance."Proceedings of the ASHRAE/DOE/BTECC Conference (1985).

Maya, Jakob, M Grossman, Radomir Lagushenko, and Philip Moskowitz."Test, Evaluation, and Report on Mercury Enrichment for Fluorescent Lamps." (1985).

Siminovitch, Michael J, Francis M Rubinstein, T. T Alan Clark, and Rudolph R Verderber."A Luminaire/Plenum/HVAC Simulator."Annual IEEE-IAS Conference (1985).

Johnson, Russell, Deborah J Connell, Stephen E Selkowitz, and Dariush K Arasteh."Advanced Optical Materials for Daylighting in Office Buildings."10th Passive Solar Conference (1985).

Verderber, Rudolph R, Oliver C Morse, and Francis M Rubinstein."Effect of Filament Power Removal on a Fluorescent Lamp System."Annual IEEE-IAS Conference (1985).

Siminovitch, Michael J, Francis M Rubinstein, and Rudolph R Verderber."Fixture Conditions Affect Lamp Performance."IEEE-IAS Annual Conference (1985).

Warren, M, Charles C Benton, Rudolph R Verderber, Oliver C Morse, Stephen E Selkowitz, and James E Jewell."Instrumentation for Evaluating Integrated Lighting System Performance in a Large Daylighted Office Building."National Workshop on Field Data Acquisition for Building and Equipment Energy-Use Monitoring (1985).

Verderber, Rudolph R, Oliver C Morse, and Francis M Rubinstein."Life of Fluorescent Lamps Operated at High Frequencies with Solid-State Ballasts."Annual IEEE-IAS Conference (1985).

Verderber, Rudolph R, and Oliver C Morse."Performance of Electronic Ballasts and Other New Lighting Equipment." (1985).

Green, Cedric, Philip Haves, and Paul Huddy."The Integration of Graphic and Thermal Simulation Models."Computer Graphics '85 Conference (1985).