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

1983

Research, Lighting Systems."Energy-Efficient H.I.D. Solid-State Ballast: Phase II Final Report." (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).

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

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

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

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.

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

Peterson, David, and Francis M Rubinstein."Energy Savings Through Effective Lighting Control."Lighting Design + Application 13 (1982).

Clear, Robert D, and Sam M Berman."Relating Productivity to Visibility and Lighting."The Integration of Visual Performance Criteria into the Illumination Design Process (1982) 184-212.

1981

Rubinstein, Francis M."Energy-Saving Benefits of Automatic Lighting Controls."International Energy Management and Facilities Improvement Show (1981).

Morse, Oliver C."High-Frequency Starting of Fluorescent Lamps."ANSI Meeting, Subcommittee C82-1 on Fluorescent Lamp Ballasts (1981).

Clear, Robert D, and Sam M Berman."A New Look at Models of Visual Performance."Journal of the Illuminating Engineering Society 12 (1981) 242-247.

1980

Kohler, Thomas P."Electronic Screw-In Ballast and Improved Circline Lamp Phase I: Final Report." (1980).

Clear, Robert D, and Sam M Berman."Cost Effectiveness of Visibility-Based Design Procedures for General Office Lighting."Illuminating Engineering Society Annual Technical Conference (1980).

Verderber, Rudolph R, and Oliver C Morse."Cost Effectiveness of Long Life Incandescent Lamps and Energy Buttons."Electrical Construction and Maintenance 80 (1980).

Rubinstein, Francis M, and Rudolph R Verderber."Lighting Controls: Survey of the Potential Market."Energy 8.6 (1980) 433-449.