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

Rubinstein, Francis M, Michael J Siminovitch, and Rudolph R Verderber."50% Energy Savings with Automatic Lighting Controls."IEEE-IAS Annual Conference, October 7-1, 1990 2 (1990). DOI

Siminovitch, Michael J, Francis M Rubinstein, and Richard E Whiteman."Thermally Efficient Compact Fluorescent Fixtures."IEEE-IAS Annual Conference (1990).

Ward, Gregory J, Anat Grynberg, Charles K Ehrlich, and Francis M Rubinstein."Using CAD for Lighting Design Helps Predict the Unpredictable."Electrical Systems Design 70 (1990) 26-31.

Siminovitch, Michael J, Francis M Rubinstein, and Richard E Whiteman."Thermal Performance Characteristics of Compact Fluorescent Fixtures."1990 HVAC and Building Systems Congress, October 7-12, 1990 (1990).

1989

Rubinstein, Francis M, and Michael Packer."The Effect of Luminaire Type and Spacing on Visibility Levels in Unobstructed Spaces."IEEE-IAS Annual Conference (1989).

Siminovitch, Michael J, Francis M Rubinstein, Rudolph R Verderber, and Douglas G Crawford."The Energy Conservation Potential Associated with Thermally Efficient Fluorescent Fixtures."AEE-World Energy Engineering Congress (1989).

Ward, Gregory J, Francis M Rubinstein, and Anat Grynberg."Luminance in Computer-Aided Lighting Design."Building Simulation Conference (1989).

Rubinstein, Francis M, Rudolph R Verderber, and Gregory J Ward."Photoelectric Control of Daylight-Following Lighting Systems." (1989).

1988

Verderber, Rudolph R, Francis M Rubinstein, and Michael J Siminovitch."Control of Lamp Wall Temperature."IEEE-IAS Annual Conference (1988).

Verderber, Rudolph R, Oliver C Morse, and Francis M Rubinstein."Performance of Electronic Ballast and Controls with 34 and 40 Watt F40 Fluorescent Lamps."IEEE-IAS Annual Conference (1988).

Rubinstein, Francis M, Gregory J Ward, and Rudolph R Verderber."Improving the Performance of Photo-Electrically Controlled Lighting Systems."Annual IES Conference (1988).

Ward, Gregory J, Francis M Rubinstein, and Robert D Clear."A Ray Tracing Solution for Diffuse Interreflection."Computer Graphics 22 (1988).

1987

Verderber, Rudolph R, Oliver C Morse, Francis M Rubinstein, and Michael J Siminovitch."Measurement of Optical Efficiency of Fluorescent Luminaires."1987 IES National Conference (1987).

Ward, Gregory J, and Francis M Rubinstein."A New Technique for Computer Simulation of Illuminated Spaces."Journal of the Illuminating Engineering Society 17 (1987) 80-91.

1986

Rubinstein, Francis M, Gregory J Ward, and Rudolph R Verderber."The Effect of Control Algorithm Photosensor Response on the Performance of Daylight Linked Lighting Systems."1986 International Daylighting Conference (1986).

Papamichael, Konstantinos M, Francis M Rubinstein, Stephen E Selkowitz, and Gregory J Ward."The Integration of Operable Shading Systems and Lighting Controls."Proceedings of the International Daylighting Conference (1986).

Rubinstein, Francis M, T. T Alan Clark, Michael J Siminovitch, and Rudolph R Verderber."The Effect of Lighting System Components on Lighting Quality, Energy Use, and Life-Cycle Cost."1986 IEEE-IAS National Conference (1986).

Clark, T. T Alan, Francis M Rubinstein, Michael J Siminovitch, and Rudolph R Verderber."The Effects of Fixture Type and HVAC Integration on Fluorescent Lamp-Ballast Performance."1986 IEEE-IAS National 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.

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).

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).

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).

Johnson, Russell, Glenn Sweitzer, Francis M Rubinstein, and Dariush K Arasteh."Commercial-Sector Conservation Technologies." (1985).

Rubinstein, Francis M, Rudolph R Verderber, and Mahmut Karayel."Determination of Optimum Sector Size for Automatic Lighting Controls."Journal of the Illuminating Engineering Society 15 (1985) 19-Mar.