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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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

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.

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).

Rubinstein, Francis M, and Gregory J Ward."The Control of Daylight-Linked Lighting Systems."IEEE-IAS Annual Meeting (1984).

Verderber, Rudolph R, and Francis M Rubinstein."New Lighting Technologies, Their Status and Impacts on Power Densities."1984 ACEES Summer Study (1984).

Verderber, Rudolph R, and Francis M Rubinstein."Lighting Controls: The Role of Advanced Technology--Past, Present, and Future."National Research Council of Canadas Lighting Control Symposium (1984).

Verderber, Rudolph R."Fluorescent Lamp Fixtures and Ballasts."EPRI Lighting and Utility Seminar (1984).

Research, Lighting Systems."CONTROLITE 1.0: Program Documentation." (1984).

Siminovitch, Michael J, Francis M Rubinstein, and Rudolph R Verderber."An Experimental Methodology for Determining the System Performance of Fluorescent Lamp, Ballast, Fixture Combinations Operating Under Realistic Application Conditions." (1984).

Clear, Robert D, and Sam M Berman."Analysis of a Visual Performance Experiment."Journal of the Illuminating Engineering Society 14 (1984) 448-465.

Siminovitch, Michael J, Francis M Rubinstein, and Rudolph R Verderber."Determining Lamp/Ballast System Performance with a Temperature Controlled Integrating Chamber."Journal of the Illuminating Engineering Society 14 (1984) 364-378.

Verderber, Rudolph R."Review of Lighting Control Equipment and Applications."Lighting Design + Application 16 (1984).

1983

Berman, Sam M, Daniel S Greenhouse, Ian L Bailey, and Arthur Bradley."Experimental Studies Relating Environmental Lighting Flicker to Visual Fatigue in VDT Operators."20th Session of CIE (CIE Session 83) (1983).