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

2012

Zhou, Nan, Nina Khanna, David Fridley, and John Romankiewicz."International Review of Framework for Standards & Labeling Setting and Development." (2012).

Levine, Mark D, Wei Feng, Jing Ke, Tianzhen Hong, and Nan Zhou."A Retrofit Tool for Improving Energy Efficiency of Commercial Buildings."ACEEE 2012 Summer Study (2012).

Feng, Wei, Nan Zhou, Chris Marnay, Michael Stadler, and Judy Lai."Building Distributed Energy Performance Optimization for China - a Regional Analysis of Building Energy Costs and CO₂ Emissions."2012 ACEEE Summer Study on Energy Efficiency in Buildings, August 12-17, 2012 (2012).

Fridley, David, Nina Zheng, Nan Zhou, Jing Ke, Ali Hasanbeigi, William R Morrow III, Lynn K Price, and Nina Khanna."China Energy and Emissions Paths to 2030 (2nd Edition)." (2012).

Price, Lynn K, Nan Zhou, David Fridley, Hongyou Lu, Nina Zheng, Cecilia Fino-Chen, Stephanie Ohshita, and Nina Khanna."Development of an End-Use Sector- Based Low-Carbon Indicator System for Cities in China."ACEEE’s 2012 Summer Study on Energy Efficiency in Buildings (2012).

Zheng, Nina, Nan Zhou, Cecilia Fino-Chen, David Fridley, and Nina Khanna."Evaluation of Local Enforcement of Energy Efficiency Standards and Labeling Program in China."International Energy Program Evaluation Conference (2012).

Zhou, Nan, Nina Zheng, David Fridley, John Romankiewicz, and Nina Khanna."International Comparative Analysis of Appliance Efficiency Standards & Labeling Programs: Implications for China."ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Zheng, Nina, Nan Zhou, Cecilia Fino-Chen, David Fridley, and Nina Khanna."Local Enforcement of Appliance Efficiency Standards and Labeling Program in China: Progress and Challenges."2012 ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Ke, Jing, Nina Zheng, David Fridley, Lynn K Price, Nan Zhou, and Nina Khanna."Potential Energy Savings and CO₂ Emissions Reduction of China’s Cement Industry." (2012).

Fridley, David, Nina Zheng, Nan Zhou, and Nina Khanna."Urban RAM: Assessing the Energy Impact of Having People in Cities."ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Zhou, Nan, John Romankiewicz, and David Fridley."White Paper on Energy Efficiency Status of Energy-Using Products in China (2011)." (2012).

Zhou, Nan, John Romankiewicz, and David Fridley."White Paper on Energy Efficiency Status of Energy-Using Products in China (2012)." (2012).

Zhou, Nan, and Lixuan Hong."Urban RAM User Guide (in Chinese)." (2012).

Zhou, Nan, Nina Zheng, David Fridley, and Nina Khanna."International Review of the Development and Implementation of Energy Efficiency Standards and Labeling Programs." (2012).

Price, Lynn K, Nan Zhou, David Fridley, Stephanie Ohshita, Hongyou Lu, Nina Zheng, Cecilia Fino-Chen, and Nina Khanna."Development of a Low-Carbon Indicator System for China."Habitat International (2012).

Ke, Jing, and Nan Zhou."GREAT Tool User Manual (in Chinese)." (2012).

2011

Price, Lynn K, Nan Zhou, David Fridley, Stephanie Ohshita, Hongyou Lu, Nina Zheng, Cecilia Fino-Chen, and Nina Khanna."Development of a Low-Carbon Indicator System for China." (2011).

Zhou, Nan, Nina Zheng, Cecilia Fino-Chen, David Fridley, Cao Ning, and Nina Khanna."Status of the Local Enforcement of Energy Efficiency Standards and Labeling Program in China." (2011).

Zhou, Nan, Lynn K Price, Stephanie Ohshita, Nina Zheng, Hu Min, and Nina Khanna."A Guidebook for Low-Carbon Development at the Local Level." (2011).

Zhou, Nan, Lynn K Price, Nina Zheng, Jing Ke, Ali Hasanbeigi, and Nina Khanna."National Level Co-Control Study of the Targets for Energy Intensity and Sulfur Dioxide in China." (2011).

Zheng, Nina, Nan Zhou, Lynn K Price, Stephanie Ohshita, and Nina Khanna."A Low Carbon Development Guide for Local Government Actions in China."ECEEE Summer Study, Giens, France, June 6-11,2011 (2011).

Zhou, Nan, David Fridley, Michael A McNeil, Nina Zheng, Jing Ke, and Mark D Levine."Peak CO₂? China’s Emissions Trajectories to 2050." (2011).

Price, Lynn K, Mark D Levine, Nan Zhou, David Fridley, Nathaniel T Aden, Hongyou Lu, Michael A McNeil, Nina Zheng, Yining Qin, Ping Yowargana, and Nina Khanna."Assessment of China’s Energy-Saving and Emission-Reduction Accomplishments and Opportunities During the 11th Five Year Plan."Energy Policy 39 (2011) 2165-2178.

Zhou, Nan, David Fridley, Michael A McNeil, Nina Zheng, Jing Ke, Mark D Levine, and Nina Khanna."China’s Energy and Carbon Emissions Outlook to 2050." (2011) 83.

Zhou, Nan, Michael A McNeil, and Mark D Levine."Assessment of Building Energy-Saving Policies and Programs in China During the 11th Five Year Plan." (2011).