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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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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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: BTUS Lighting and Electronics

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2000

Brown, Richard E, Carrie A Webber, Jonathan G Koomey, Ken Keating, Margaret Suozzo, and Marc Hoffman."Status and Future Directions of the ENERGY STAR Program."2000 ACEEE Summer Study on Energy Efficiency in Buildings 6 (2000) 6.33-6.43.

Koomey, Jonathan G."Avoiding "The Big Mistake" in Forecasting Technology Adoption."ENERGEX 2000 Conference (2000).

Rosen, Karen, Alan K Meier, and Stefan Zandelin."National Energy Use of Consumer Electronics in 1999." (2000).

Koomey, Jonathan G."Report to Flexplay Technologies: Preliminary analysis of environmental impacts of video rentals in the U.S.." (2000).

Laitner, John A, Jonathan G Koomey, Ernst Worrell, and Etan Gumerman."Re-estimating the Annual Energy Outlook 2000 Forecast Using Updated Assumptions about the Internet Economy."Eastern Economics Association Conference (2000).

Jennings, Judy D, Francis M Rubinstein, Dennis L DiBartolomeo, and Steven L Blanc."Comparison of Control Options in Private Offices in an Advanced Lighting Controls Testbed."Journal of the Illuminating Engineering Society (2000).

Driscoll, Debbie A, Mehry Yazdanian, and Michael J Siminovitch."Structural Stability Analysis of a Quartz Fiber Optic Coupler Under Thermal Loading."Journal of the Illuminating Engineering Society 29.1 (2000) 59-65. DOI

Johnson, Stephen G."The Solid State Lighting Initiative: An Industry/DOE Collaborative Effort."Architectural Lighting (2000).

1999

Page, Erik, and Michael J Siminovitch."Lighting Energy Savings Opportunities in Hotel Guestrooms: Results from a Scoping Study at the Redondo Beach Crown Plaza."2000 ACEEE Summer Study on Energy Efficiency in Buildings (1999).

Koomey, Jonathan G, Kaoru Kawamoto, Bruce Nordman, Mary Ann Piette, and Richard E Brown."Initial comments on 'The Internet Begins with Coal'." (1999).

Rubinstein, Francis M."Lighting Recommendations for the Social Security Administration Frank Hagel Federal Building in Richmond CA." (1999).

1998

Roberson, Judy A, Richard E Brown, Jonathan G Koomey, and Steve E Greenberg."Recommended Ventilation Strategies for Energy-Efficient Production Homes." (1998).

Department, Building Technologies."The Usefulness of Bi-Level Switching." (1998).

Koomey, Jonathan G, R. R Cooper Richey, John A Laitner, Robert J Markel, and Chris Marnay."Technology and greenhouse gas emissions: An integrated analysis using the LBNL-NEMS model." (1998).

Rubinstein, Francis M, Nils Borg, Noah Horowitz, Tracy Narel, and E. E Thomas Morehouse Jr."Creating Markets for New Products to Replace Incandescent Lamps: The International Experience."1998 ACEEE Summer Study on Energy Efficiency in Buildings (1998).

Brown, Richard E, Celina S Atkinson, Jeffrey L Warner, Judy A Roberson, Marla C Sanchez, Sarah E Bretz, and Jonathan G Koomey."Developing Energy-Efficiency Packages for New Production Homes."1998 ACEEE Summer Study on Energy Efficiency in Buildings (1998).

Siminovitch, Michael J, Erik Page, and Debbie A Driscoll."Energy Efficient Torchieres: From the Laboratory to the Marketplace."ACEEE 1998 Summer Study on Energy Efficiency in Buildings (1998).

Floyd, David B, and Carrie A Webber."Leaking Electricity: Individual Field Measurement of Consumer Electronics."1998 ACEEE Summer Study on Energy Efficiency in Buildings 1 (1998) 1.93-1.102.

Rubinstein, Francis M, Judy D Jennings, Doug A Avery, and Steven L Blanc."Preliminary Results from an Advanced Lighting Controls Testbed."IESNA 1998 Annual Conference (1998).

Roberson, Judy A, Richard E Brown, Jonathan G Koomey, Jeffrey L Warner, and Steve E Greenberg."Recommended Ventilation Strategies for New Energy-Efficient Production Homes."1998 ACEEE Summer Study on Energy Efficiency in Buildings (1998).

Moezzi, Mithra M."The Predicament of Efficiency."1998 ACEEE Summer Study on Energy Efficiency in Buildings 4 (1998) 4.273-4.284.

Webber, Carrie A, and Richard E Brown."Savings Potential of Energy Star Voluntary Labeling Programs."1998 ACEEE Summer Study on Energy Efficiency in Buildings (1998).

Sezgen, Osman, and Jonathan G Koomey."Interactions between lighting and space conditioning energy use in U.S. commercial buildings." (1998).

Sanchez, Marla C, Jonathan G Koomey, Mithra M Moezzi, Alan K Meier, and Wolfgang Huber."Miscellaneous Electricity Use in the U.S. Residential Sector." (1998).

Nordman, Bruce, Mary Ann Piette, Brian Pon, and Kristopher L Kinney."It’s Midnight … Is Your Copier On?: Energy Star Copier Performance." (1998).