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

2009

Sanchez, Marla C., Gregory K. Homan, Judy Lai, and Richard E. Brown."Calendar Year 2007 Program Benefits for U.S. EPA Energy Star Labeled Products: Expanded Methodology." (2009).

2008

Sanchez, Marla C., Gregory K. Homan, and Richard E. Brown."Calendar Year 2007 Program Benefits for ENERGY STAR Labeled Products." (2008).

Homan, Gregory K., Marla C. Sanchez, and Richard E. Brown."Savings Estimates for the United States Environmental Protection Agency’s ENERGY STAR Voluntary Product Labeling Program."2008 ACEEE Summer Study on Energy Efficiency in Buildings (2008).

2007

Sanchez, Marla C., Carrie A. Webber, Richard E. Brown, and Gregory K. Homan."2008 Status Report - Savings Estimates for the ENERGY STAR Voluntary Labeling Program." (2007).

Sanchez, Marla C., Carrie A. Webber, Richard E. Brown, and Gregory K. Homan."2007 Status Report - Savings Estimates for the ENERGY STAR Voluntary Labeling Program." (2007) 38.

Sanchez, Marla C., Carrie A. Webber, Richard E. Brown, and Gregory K. Homan."2005 Status Report - Savings Estimates for the ENERGY STAR Voluntary Labeling Program." (2007) 35.

2006

Webber, Carrie A., David Korn, and Marla C. Sanchez."Savings Potential of ENERGY STAR® External Power Adapters and Battery Chargers."2006 ACEEE Summer Study on Energy Efficiency in Buildings 9 (2006) 9-371: 9-384.

Sanchez, Marla C., Carrie A. Webber, Richard E. Brown, John F. Busch, Margaret J. Pinckard, and Judy A. Roberson."Space Heaters, Computers, Cell Phone Chargers: How Plugged In Are Commercial Buildings?."2006 ACEEE Summer Study on Energy Efficiency in Buildings 9 (2006) 9-304: 9-315.

Webber, Carrie A., Richard E. Brown, Marla C. Sanchez, and Gregory K. Homan."2006 Status Report - Savings Estimates for the ENERGY STAR Voluntary Labeling Program." (2006) 38.

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).

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).

Sanchez, Marla C., Jonathan G. Koomey, Mithra M. Moezzi, Alan K. Meier, and Wolfgang Huber."Miscellaneous Electricity Use in U.S. Homes."ACEEE 1998 Summer Study on Energy Efficiency in Buildings (1998) 11.

1997

Wenzel, Thomas P., Jonathan G. Koomey, Gregory J. Rosenquist, Marla C. Sanchez, and James W. Hanford."Energy Data Sourcebook for the U.S. Residential Sector." (1997).