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

2017

Piette, Mary Ann, Tianzhen Hong, William J Fisk, Norman Bourassa, Wanyu R Chan, Yixing Chen, H.Y Iris Cheung, Toshifumi Hotchi, Margarita Kloss, Sang Hoon Lee, Phillip N Price, Oren Schetrit, Kaiyu Sun, Sarah C Taylor-Lange, and Rongpeng Zhang."Small and Medium Building Efficiency Toolkit and Community Demonstration Program." (2017). DOI

2014

Cheung, H.Y Iris, Steve E Greenberg, Roozbeh Mahdavi, Richard E Brown, and William Tscudi."Energy Efficiency in Small Server Rooms: FIeld Surveys and Findings."2014 ACEEE Summer Study on Energy Efficiency in Buildings (2014).

Payne, Christopher T, H.Y Iris Cheung, and Emily Fisher."Evolution of Energy Efficiency Programs Over Time: The Case of Standby Power."2014 ACEEE Summer Study on Energy Efficiency in Buildings (2014).

Kloss, Margarita, H.Y Iris Cheung, Richard E Brown, and Alan K Meier."Using Public Participation to Improve MELs Energy Data Collection."2014 ACEEE Summer Study on Energy Efficiency in Buildings (2014).

2013

Cheung, H.Y Iris, Margarita Kloss, Richard E Brown, and Alan K Meier."Using Public Participation to Improve MELs Energy Data Collection." (2013).

Lanzisera, Steven, Stephen Dawson-Haggerty, H.Y Iris Cheung, Jay Taneja, David Culler, and Richard E Brown."Methods for detailed energy data collection of miscellaneous and electronic loads in a commercial office building."Building and Environment 65 (2013) 170 - 177. DOI

Lanzisera, Steven, Stephen Dawson-Haggerty, H.Y Iris Cheung, Jay Taneja, David Culler, and Richard E Brown."Methods for Detailed Energy Data Collection of Miscellaneous and Electronic Loads in a Commercial Office Building." (2013).

2012

Cheung, H.Y Iris, Steven Lanzisera, Judy Lai, Richard E Brown, Stephen Dawson-Haggerty, Jay Taneja, and David Culler."Detailed Energy Data Collection for Miscellaneous and Electronic Loads in a Commercial Office Building."2012 ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Cheung, H.Y Iris, Roozbeh Mahdavi, Steve E Greenberg, Richard E Brown, William F Tschudi, Pierre Delforge, and Joyce Dickerson."Fact Sheet: Improving Energy Efficiency for Server Rooms and Closets." (2012).