| 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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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.

2002

McConahey, Erin, Philip Haves, and Tim Chirst."The Integration of Engineering and Architecture: a Perspective on Natural Ventilation for the new San Francisco Federal Building."2002 ACEEE Summer Study on Energy Efficiency in Buildings (2002).

Roberson, Judy A, Gregory K Homan, Akshay Mahajan, Bruce Nordman, Carrie A Webber, Richard E Brown, Marla C McWhinney, and Jonathan G Koomey."Energy Use and Power Levels in New Monitors and Personal Computers." (2002).

Roberson, Judy A, Gregory K Homan, Akshay Mahajan, Bruce Nordman, Carrie A Webber, Richard E Brown, Marla C McWhinney, and Jonathan G Koomey."Enery Use and Power Management in New Personal Computers and Monitors." (2002) 36.

Powles, Rebecca, Dragan C Curcija, and Christian Kohler."Solar Absorption in Thick and Multilayered Glazings."World Renewable Energy Congress VII (2002).

Bhattacharya, Prajesh, and Patrick E Phelan."Understanding the Behavior of an F1-ATPase Biomolecular Motor Using Brownian Dynamics Simulation."US-Japan Nanotherm Seminar: Nanoscale Thermal Science and Engineering (2002).

Barbour, Ed, and Dariush K Arasteh."An Evaluation of Alternative Qualifying Criteria for Energy Star Windows." (2002).

Xu, Peng, and Philip Haves."Field Testing of Component-Level Model-Based Fault Detection Methods for Mixing Boxes and VAV Fan Systems."2002 American Council for an Energy-Efficient Economy Summer Study on Energy Efficiency in Buildings (2002).

Johnson, Stephen G."LEDs - An Overview of the State of the Art in Technology and Application."Light Right 5 Conference (2002).

Myers, Whittier R, Lin-Wang Wang, Thomas J Richardson, and Michael D Rubin."Calculation of Thermodynamic, Electronic, and Optical Properties of Monoclinic Mg₂NiH₄."Journal of Applied Physics 91.8 (2002) 4879-4885. DOI

Johnson, Stephen G, and Jerry A Simmons."Materials for Solid State Lighting."2002 Materials Research Society Spring Meeting (2002).

Taha, Haider, Hillel Hammer, and Hashem Akbari."Meteorological and air quality impacts of increased urban albedo and vegetative cover in the greater Toronto Area, Canada." (2002).

Wenzel, Thomas P, and Marc Ross."An Analysis of Traffic Deaths by Vehicle Type and Model." (2002).

Lee, Eleanor S, and Dennis L DiBartolomeo."Application issues for large-area electrochromic windows in commercial buildings."Solar Energy Materials and Solar Cells 71.4 (2002) 465–491. DOI

Kawamoto, Kaoru, Jonathan G Koomey, Bruce Nordman, Richard E Brown, Mary Ann Piette, Michael K Ting, and Alan K Meier."Electricity Used by Office Equipment and Network Equipment in the U.S.."Energy 27.3 (2002) 255-269. DOI

Akbari, Hashem."Shade trees reduce building energy use and CO₂ emissions from power plants."Environmental Pollution 116.1 (2002) S119-S126. DOI

Webber, Carrie A, Richard E Brown, Akshay Mahajan, and Jonathan G Koomey."Savings Estimates for the ENERGY STAR Voluntary Labeling Program: 2001 Status Report." (2002).

Shehabi, Arman, Charles N Eley, Dariush K Arasteh, and Phil Degens."A Characterization of the Nonresidential Fenestration Market." (2002).

Berdahl, Paul H, Hashem Akbari, and Leanna S Rose."Aging of reflective roofs: soot deposition."Applied Optics 41 (2002) 2355-2360.

Byon, Eungsun, and André Anders."Bias and Self-Bias of Magnetic Macroparticle Filters for Cathodic Arc Plasmas."Journal of Applied Physics 93 (2002) 8890-8897.

Levinson, Ronnen M, and Hashem Akbari."Effects of composition and exposure on the solar reflectance of portland cement concrete."Cement and Concrete Research 32 (2002) 1679-1698. DOI

Prindle, Bill, and Dariush K Arasteh."Energy Savings and Pollution Prevention Benefits of Solar Heat Gain Standards in the International Energy Conservation Code." (2002).

Konopacki, Steven J, and Hashem Akbari."Energy savings for heat-island reduction strategies in Chicago and Houston." (2002).

Konopacki, Steven J, and Hashem Akbari."Energy Savings of Heat-Island Reduction Strategies in Chicago and Houston (Including Updates for Baton Rouge, Sacramento, and Salt Lake City)." (2002).

Lee, Eleanor S, Stephen E Selkowitz, Christian Kohler, Vladimir Bazjanac, and Vorapat Inkarojrit."High-Performance Commercial Building Façades." (2002).

Zhai, Zhiqiang, Qingyan Chen, Philip Haves, and Joseph H Klems."On Approaches to Couple Energy Simulation and Computational Fluid Dynamics Programs."Building and Environment 37 (2002).