| Building Technology and Urban Systems

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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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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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.

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2008

Coleman, Philip, Christopher T Payne, and Richard G White."A Plea for Simpler Electricity Tariffs."2008 ACEEE Summer Study on Energy Efficiency in Buildings 7 (2008) 60-69.

Mathew, Paul A."An Estimate of Energy Use in Laboratories, Cleanrooms, and Data Centers in New York." (2008).

Diamond, Richard C, and Christopher T Payne."Greening the U.S. House of Representatives." (2008).

Mathew, Paul A, Steve E Greenberg, Dale A Sartor, and Peter Rumsey."Metrics and Benchmarks for Energy Efficiency in Laboratories."ASHRAE Journal (2008) 40-47.

2007

Amon, Dan, Tom Smith, and Paul A Mathew."System Static Pressure Optimization." (2007).

Tschudi, William F, and Charles H Williams."Power Supply Options for Data Centers." (2007).

Shehabi, Arman, William F Tschudi, and Ashok J Gadgil."Data Center Economizer Contamination and Humidity Study." (2007).

Xu, Tengfang T, and Steve E Greenberg."Data Center Energy Benchmarking: Part 1-5." (2007).

Xu, Tengfang T, Jan Eudy, and Chuck Berndt."New Challenges in Contamination Control: The Leadership Role of IEST in Shaping Future Research and Practices."CleanRooms Magazine (2007) 18-20.

Xu, Tengfang T."Standard Methods of Characterizing Performance of Fan Filter Units, Version 3.x." (2007).

2006

Tschudi, William F, and Stephen Fok."Best Practices for Energy Efficient Data Centers Identified Through Case Studies and Demonstration Projects."2007 ASHRAE Winter Meeting (2006).

Iyer, Maithili, Willett Kempton, and Christopher T Payne."Comparison groups on bills: Automated, personalized energy information."Energy and Buildings 38.8 (2006) 988-996. DOI

Payne, Christopher T."The Commercial Energy Consumer: About Whom Are We Speaking?."2006 ACEEE Summer Study on Energy Efficiency in Buildings (2006).

Harris, Jeffrey P, Richard C Diamond, Maithili Iyer, Christopher T Payne, and Carl Blumstein."Don't Supersize Me! Toward a Policy of Consumption-Based Energy Efficiency."ACEEE Summer Study on Energy Efficiency in Buildings (2006) 7-100-7-114.

McGrory, Laura Van Wie, Philip Coleman, David Fridley, Jeffrey P Harris, and Edgar Villasenor Franco."Two Paths to Transforming Markets through Public Sector Energy Efficiency: Bottom Up versus Top Down."2006 ACEEE Summer Study on Energy Efficiency in Buildings 6 (2006) 265-276.

Xu, Tengfang T."An Innovative Method for Dynamic Characterization of Fan Filter Unit Operation."Journal of the IEST 50 (2006).

Xu, Tengfang T."Development of a Fan-Filter Unit Test Standard, Laboratory Validations, and its Applications across Industries."CleanRooms Magazine (2006).

Kozminski, Kenneth, Stuart Lewis, and Paul A Mathew."Efficient Electrical Lighting for Laboratories." (2006).

Mathew, Paul A, and Kath Williams."LEED for Labs: Review and Outlook." (2006).

Mathew, Paul A, and Tim Kehrli."Review of EPA Energy Efficiency Targets: A Case Study Analysis of Five EPA Buildings." (2006).

2005

Payne, Christopher T, and Beverly Dyer."Federal Participation in LEED in 2005."Greenbuild Expo 2005 (2005).

Tschudi, William F, David Faulkner, and Allen Hebert."Energy Efficiency Strategies for Cleanrooms without Compromising Environmental Conditions."ASHRAE Symposium 3 (2005).

Xu, Tengfang T."Investigating the Performance of a Minienvironment System."ESTECH 2005 Conference (2005).

Xu, Tengfang T."Advanced Energy-Efficient Filtration: Fan-Filter Unit." (2005).

Xu, Tengfang T."Best Practice for Energy Efficient Cleanrooms: Control of Chilled Water System." (2005).