| 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.

1983

Richardson, Robert W, and Sam M Berman."Experimental Studies of Enhanced Emittance by Zeeman Splitting of a Low-Pressure Mercury/Argon Discharge."3rd International Symposium on the Science and Technology of Light Sources (1983).

Navvab, Mojtaba, Mahmut Karayel, Eliyahu Neeman, and Stephen E Selkowitz."Analysis of Atmospheric Turbidity for Daylight Calculations."Energy and Buildings 6 (1983) 293-303.

Verderber, Rudolph R."Assessing Fluorescent Ballast/Lamp Systems."Electrical Consultant 64 (1983) 47.

Johnson, Russell, Robert Sullivan, Shirley Nozaki, Stephen E Selkowitz, Craig Conner, and Dariush K Arasteh."Building Envelope Thermal and Daylighting Analysis in Support of Recommendations to Upgrade ASHRAE/IES Standard 90: Vol 1, Parametric Study, Analysis, and Results." (1983).

Verderber, Rudolph R, and Francis M Rubinstein."Comparison of Technologies for New Energy-Efficient Lamps."IEEE Transactions on Industry Applications 1A-20 (1983).

Winkelmann, Frederick C."Daylighting Calculation in DOE-2." (1983).

Rubinstein, Francis M, Mahmut Karayel, and Rudolph R Verderber."Field Study on Occupancy Scheduling as a Lighting Management Strategy."Lighting Design + Application 14 (1983).

Clear, Robert D, and Sam M Berman."Fundamental Problems with Visual Performance Research Described in the CIE 19/2 Report."1983 IES Annual Conference (1983).

Rubinstein, Francis M, and Rudolph R Verderber."Mutual Impacts of Lighting Controls on Daylighting Applications."Energy and Buildings 6 (1983) 133-140.

Rubinstein, Francis M."Photo-Electric Control of Equi-Illumination Lighting Systems."Energy and Buildings 6 (1983) 141-150.

Clark, Gene, Fred M Loxsom, Philip Haves, and Earl S Doderer."Results of Validated Simulations of Roof Pond Residences."8th National Passive Solar Conference (1983).

Lampert, Carl M."Solar Optical Materials for Innovative Window Design."International Journal of Energy Research 7 (1983) 359-374.

Maya, Jakob."Test, Evaluation, and Report on Mercury Enrichment for Fluorescent Lamps: GTE Lighting: Final Report." (1983).

Rubin, Michael D, and Carl M Lampert."Transparent Silica Aerogels for Window Insulation."Solar Energy Materials 7 (1983) 393-400.

Karayel, Mahmut, Mojtaba Navvab, Eliyahu Neeman, and Stephen E Selkowitz."Zenith Luminance for Daylighting Calculations."Energy and Buildings 6 (1983) 283-291.

1982

Lampert, Carl M."Optical Films for Solar Energy Applications."International Society for Optical Engineering Conference (1982) 387.

Selkowitz, Stephen E, Carl M Lampert, and Michael D Rubin."Advanced Optical and Thermal Technologies for Aperature Control."Passive and Hybrid Solar Energy Update (1982).

Peck, John F, T. T Lewis Thompson, and Helen J Kessler."Windows for Accepting or Rejecting Solar Heat Gain: Final Report." (1982).

Schutt, Brady, Gene Clark, Philip Haves, and M Merino."Accuracy of a Simple Method of Estimating the Minimum Temperature of a Sealed Roof Pond."Annual Meeting of American Section of the International Solar Energy Society 5 (1982) 709-714.

Haves, Philip, Fred M Loxsom, and Earl S Doderer."Dehumidification and Passive Cooling for Retrofit and Conventional Construction."7th National Passive Solar Conference (1982).

Rubinstein, Francis M, and Mahmut Karayel."The Measured Energy Savings from Two Lighting Control Strategies."IEEE-IAS Transactions 1A-20(5) (1982) 1189-1197.

Van Dyck, Robert L, and Thomas P Konen."Energy Conservation through Interior Shading of Windows: An Analysis, Test and Evaluation of Reflective Venetian Blinds." (1982).

Kohler, Thomas P."Integrated Circuit Control for Two-Lamp Electronic Ballast." (1982).

Lampert, Carl M, and Stephen E Selkowitz."Transparent Heat-Mirror Materials and Deposition Technology."International Society of Optical Engineering (SPIE) Conference on Optical Coatings for Energy Efficiency and Solar Applications and the Conference on Optical Thin Films (1982).

Klems, Joseph H, Stephen E Selkowitz, and Sy Horowitz."A Mobile Facility for Measuring Net Energy Performance of Windows and Skylights."3rd International CIB Symposium on Energy Conservation in the Built Environment (1982).