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.
Colum 1 +
Colum 2 +
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

2006

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.

2004

Roberson, Judy A., Carrie A. Webber, Marla C. McWhinney, Richard E. Brown, Margaret J. Pinckard, and John F. Busch."After-hours Power Status of Office Equipment and Energy Use of Miscellaneous Plug-Load Equipment." (2004) 38.

McWhinney, Marla C., Gregory K. Homan, Richard E. Brown, Judy A. Roberson, Bruce Nordman, and John F. Busch."Field Power Measurements of Imaging Equipment." (2004).

Roberson, Judy A., Carrie A. Webber, Marla C. McWhinney, Richard E. Brown, Margaret J. Pinckard, and John F. Busch."After-hours Power Status of Office Equipment and Inventory of Miscellaneous Plug-Load Equipment." (2004) 33.

2002

Roberson, Judy A., Gregory K. Homan, Akshay Mahajan, Bruce Nordman, Carrie A. Webber, Richard E. Brown, Marla C. McWhinney, and Jonathan G. Koomey."Energy Use and Power Levels in New Monitors and Personal Computers." (2002).

Roberson, Judy A., Gregory K. Homan, Akshay Mahajan, Bruce Nordman, Carrie A. Webber, Richard E. Brown, Marla C. McWhinney, and Jonathan G. Koomey."Enery Use and Power Management in New Personal Computers and Monitors." (2002) 36.

2001

Webber, Carrie A., Judy A. Roberson, Richard E. Brown, Christopher T. Payne, Bruce Nordman, and Jonathan G. Koomey."Field Surveys of Office Equipment Operating Patterns." (2001).

1998

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

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).