| 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.

1987

Berman, Sam M, Don L Jewett, Larry R Bingham, Richard M Nahass, Franklin Perry, and George Fein."Pupillary Size Differences Under Incandescent and High Pressure Sodium Lamps."Journal of the Illuminating Engineering Society Winter (1987) 3-20.

Clear, Robert D, and Sam M Berman."To Average, or Not To Average."Lighting Design + Application 17 (1987) 28-31.

1986

Verderber, Rudolph R, James E Jewell, and Oliver C Morse."Building Design: Impact on the Lighting Control System for a Daylighting Strategy."1987 IEEE-IAS Annual Meeting (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).

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).

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

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

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.

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.

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).

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).

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

Berman, Sam M."Lighting Research Program."12th Energy Tech. Conference and Exposition (1985).

Research, Lighting Systems."CONTROLITE 1.0 Lighting Control Systems and Daylighting Analysis Program: User's Manual." (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.

Anderson, John M, Peter D Johnson, C E Jones, and Theodore H Rautenberg."Electrodeless HID Lamp Study: Final Report." (1985).

Clear, Robert D, and Sam M Berman."Target Size, Visibility, and Roadway Performance."Journal of the Illuminating Engineering Society 15 (1985) 167-180.

1984

Verderber, Rudolph R, Oliver C Morse, and C Dumm."Quality Assurance Assessment of New Efficient Lighting Systems for Naval Ships: Final Report." (1984).

Wang, Zhien, Donald D Hollister, and Sam M Berman."Development of Novel Lamps for Study of Enhanced Production of Resonance Radiation by Low-Density Mercury Discharges."1984 IEEE-IAS Annual Meeting (1984).

Harms, Michael G, Leon P Leung, and Rudolph R Verderber."Electromagnetic Interference from Fluorescent Lighting Operated with Solid-State Ballasts in Various Sites."IEEE-IAS Annual Meeting (1984).