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

2014

Hong, Lixuan, Nan Zhou, David Fridley, Wei Feng, and Nina Khanna."Modeling China's Building Floor-Area Growth and the Implications for Building Materials and Energy Demand."2014 ACEEE Summer Study on Energy Efficiency in Buildings (2014).

2013

Khanna, Nina, Nan Zhou, David Fridley, and John Romankiewicz."International Comparison of Energy Efficiency Criteria and Test Procedures in Standards and Labeling Programs for Computer Monitors and Commercial Gas Stoves." (2013).

Hong, Lixuan, Nan Zhou, David Fridley, and Chris Raczkowski."Assessment of China's Renewable Energy Contribution During the 12th Five Year Plan."Energy Policy 62 (2013) 1533-1543. DOI

Khanna, Nina, Nan Zhou, David Fridley, and Cecilia Fino-Chen."Evaluation of China's local enforcement of energy efficiency standards and labeling programs for appliances and equipment."Energy Policy (2013). DOI

He, Gang, Nan Zhou, Christopher J Williams, and David Fridley."ELITE Cities: A low-carbon Eco-city Evaluation Tool for China."ECEEE 2013 Summer Study (2013).

Zhou, Nan, Nina Khanna, David Fridley, and John Romankiewicz."Development and implementation of energy efficiency standards and labeling programs in China: Progress and challenges." (2013).

Zhou, Nan, David Fridley, Michael A McNeil, Nina Khanna, Wei Feng, and Jing Ke."Quantifying the potential impact of energy efficiency and low carbon policies for China."the European Council for an Energy-Efficient Economy’s 2013 Summer Study on Energy Efficiency (2013).

Zhou, Nan, David Fridley, Nina Khanna, Jing Ke, Michael A McNeil, and Mark D Levine."China's Energy and Emissions Outlook to 2050: Perspectives from Bottom-Up Energy End-Use Model."Energy Policy 53 (2013) 51-62. DOI

Fridley, David, Nina Zheng, Nan Zhou, Jing Ke, Ali Hasanbeigi, William R Morrow III, Lynn K Price, and Nina Khanna."China Energy and Emissions Path to 2030." (2013).

2012

Zhou, Nan, John Romankiewicz, Edward L Vine, Nina Khanna, and David Fridley."International Review of Frameworks for Impact Evaluation of Appliance Standards, Labeling, and Incentives." (2012).

Ke, Jing, Lynn K Price, Stephanie Ohshita, David Fridley, Nina Khanna, Nan Zhou, and Mark D Levine."China’s Industrial Energy Consumption Trends and Impacts of the Top-1000 Enterprises Energy-Saving Program and the Ten Key Energy-Saving Projects."Energy Policy 50 (2012) 562-569. DOI

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

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).