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

2006

Xu, Peng, Yu Joe Huang, Ruidong Jin, and Guoxiong Yang."Measured energy performance of a US-China demonstration energy-efficient commercial building."2007 ASHRAE Winter Meeting, January 27-31, 2007 (2006).

Huang, Yu Joe, Norman Bourassa, Walter F Buhl, Ender Erdem, and Robert J Hitchcock."Using EnergyPlus for California Title-24 Compliance Calculations."SimBuild 2006 (2006).

Huang, Yu Joe, Norman Bourassa, Walter F Buhl, Ender Erdem, and Robert J Hitchcock."Using EnergyPlus for California Title-24 compliance calculations."SimBuild 2006 (2006).

2004

Huang, Yu Joe, Robin Mitchell, and Stephen E Selkowitz."Development of Trade-Off Equations for EnergyStar Windows."SimBuild 2004, Building Sustainability and Performance Through Simulation (2004).

Crawley, Drury B, Linda K Lawrie, Curtis O Pedersen, Frederick C Winkelmann, Michael J Witte, Richard K Strand, Richard J Liesen, Walter F Buhl, Yu Joe Huang, Robert H Henninger, Jason Glazer, Daniel E Fisher, Don B Shirley, Brent T Griffith, Peter G Ellis, and Lixing Gu."EnergyPlus: An Update."SimBuild 2004, Building Sustainability and Performance Through Simulation (2004).

Deringer, Joseph J, Maithili Iyer, and Yu Joe Huang."Transferred Just on Paper? Why Doesn't the Reality of Transferring/Adapting Energy Efficiency Codes and Standards Come Close to the Potential?."ACEEE Summer Study on Energy Efficiency in Buildings (2004).

2002

Bourassa, Norman, Philip Haves, and Yu Joe Huang."A Computer Simulation Appraisal of Non-Residential Low Energy Cooling Systems in California."2002 ACEEE Summer Study on Energy Efficiency in Buildings (2002).