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.
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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: IEA: DREAM Tool

Publications By Research Area

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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).

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, David Fridley, Michael A McNeil, Nina Zheng, Virginie E Letschert, Jing Ke, and Nina Khanna."Analysis of Potential Energy Saving and CO₂ Emission Reduction of Home Appliances and Commercial Equipments in China." (2011).

2010

Zheng, Nina, Nan Zhou, David Fridley, and Nina Khanna."Comparative Analysis of Modeling Studies on China’s Future Energy and Emissions Outlook." (2010).

Zhou, Nan, David Fridley, Michael A McNeil, Nina Zheng, Virginie E Letschert, Jing Ke, and Nina Khanna."Analysis of Potential Energy Saving and CO₂ Emission Reduction of Home Appliances and Commercial Equipments in China."The 2010 American Council for an Energy Efficient Economy's Summer Study on Energy Efficiency in Buildings (2010).

2009

Zhou, Nan, Michael A McNeil, and Mark D Levine."Energy for 500 million Homes: Drivers and Outlook for Residential Energy Consumption in China." (2009).

Letschert, Virginie E, Michael A McNeil, and Nan Zhou."Residential Electricity Demand in China -- Can Efficiency Reverse the Growth?." (2009).

Zhou, Nan, and Michael A McNeil."Assessment of Historic Trend in Mobility and Energy Use in India Transportation Sector Using Bottom-up Approach." (2009).

de la Rue du Can, Stephane, Virginie E Letschert, Michael A McNeil, Nan Zhou, and Jayant A Sathaye."Residential and Transport Energy Use in India: Past Trend and Future Outlook." (2009).

2008

Zhou, Nan, Masaru Nishida, and Weijun Gao."Current Status and Future Scenarios of Residential Building Energy Consumption in China." (2008).

Fridley, David, Nina Zheng, Nan Zhou, and Nina Khanna."Estimating Total Energy Consumption and Emissions of China’s Commercial and Office Buildings." (2008).

2007

Fridley, David, Nathaniel T Aden, Nan Zhou, and Lawrence Berkeley National Laboratory."China’s Building Energy Use." (2007).

Zhou, Nan, and Jiang Lin."The Reality and Future Scenarios of Commercial Building Energy Consumption in China." (2007).

Zhou, Nan, Michael A McNeil, David Fridley, Jiang Lin, Lynn K Price, Stephane de la Rue du Can, Jayant A Sathaye, and Mark D Levine."Energy Use in China: Sectoral Trends and Future Outlook." (2007).

Bressand, Florian, Nan Zhou, and Jiang Lin."al Energy use in commercial building in China: Current situation and future scenarios."Proceedings of the 2007 ECEEE Summer Study (2007).