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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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: BTUS Windows and Daylighting

Publications By Research Area

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2006

Maamari, Fawaz, Marilyn Andersen, Jan de Boer, William L. Carroll, Dominique Dumortier, and Phillip Greenup."Experimental Validation of Daylighting Simulation Methods for Complex Fenestration Systems." (2006).

Lee, Eleanor S., Stephen E. Selkowitz, Robert D. Clear, Dennis L. DiBartolomeo, Joseph H. Klems, Luis L. Fernandes, Gregory J. Ward, Vorapat Inkarojrit, and Mehry Yazdanian."Advancement of Electrochromic Windows." (2006).

Clear, Robert D.."Summary results of visual comfort measurements at the electrochromic windows testbed." (2006).

Lee, Eleanor S., Stephen E. Selkowitz, Robert D. Clear, Dennis L. DiBartolomeo, Joseph H. Klems, Luis L. Fernandes, Gregory J. Ward, Vorapat Inkarojrit, and Mehry Yazdanian."A Design Guide for Early-Market Electrochromic Windows." (2006).

Tavil, Aslihan, and Eleanor S. Lee."Effects of Overhangs on the Performance of Electrochromic Windows."Architectural Science Review (2006).

Anders, André, Nitisak Pasaja, Sakon Sansongsiri, and Sunnie H.N. Lim."Filtered cathodic arc deposition with ion-species-selective bias."Review of Scientific Instruments (2006).

Anders, André."Metal plasmas for the fabrication of nanostructures."J. Phys. D: Appl. Phys. (2006).

Lee, Eleanor S., and Stephen E. Selkowitz."The New York Times Headquarters Daylighting Mockup: Monitored Performance of the Daylighting Control System."Energy & Buildings 38 (2006) 914-929.

Anders, André, Eungsun Byon, Dong-Ho Kim, Kentaro Fukuda, and Sunnie H.N. Lim."Smoothing of ultrathin silver films by transition metal seeding."Applied Physics Letters (2006).

Mohamed, Sodky H., and André Anders."Structural, optical and electrical properties of WOxNy films deposited by reactive dual magnetron sputtering."Surface and Coatings Technology 201.6 (2006) 2977-2983. DOI

Apte, Joshua S., and Dariush K. Arasteh."Window-Related Energy Consumption in the US Residential and Commercial Building Stock." (2006).

2005

Carroll, William L., and Robert J. Hitchcock."DElight2 Daylighting Analysis in Energy Plus: Integration and Preliminary User Results."Building Simulation 2005 (2005).

Tavil, Aslihan, and Eleanor S. Lee."The Impact of Overhang Designs on the Performance of Electrochromic Windows."ISES 2005 Solar World Congress (2005).

Lee, Eleanor S., Stephen E. Selkowitz, Glenn D. Hughes, Robert D. Clear, Gregory J. Ward, John Mardaljevic, Judy Lai, Mehlika Inanici, and Vorapat Inkarojrit."Daylighting the New York Times Headquarters Building: Final Report." (2005).

Anders, André."Energetic or Not Energetic: Considerations for Fabricating Nanostructures by Physical Vapor Deposition."NanoSingapore 2006: IEEE Conference on Emerging Technologies - Nanoelectrics, January 10-13 (2005).

Mitchell, Robin, Yu Joe Huang, Dariush K. Arasteh, Charlie Huizenga, and Steve Glendenning."RESFEN5: Program Description." (2005).

Gustavsen, Arlid, Dariush K. Arasteh, Christian Kohler, and Dragan C. Curcija."Two-Dimension Conduction and CFD Simulations for Heat Transfer in Horizontal Window Frame Cavities."2005 ASHRAE Winter Meeting 111 (2005).

Inkarojrit, Vorapat."Balancing comfort: occupants' control of window blinds in private offices."Architecture (2005) 281.

Andersen, Marilyn, Michael D. Rubin, Rebecca Powles, and Jean-Louis Scartezzini."Bi-Directional Transmission Properties of Venetian Blinds: Experimental Assessment Compared to Ray-Tracing Calculations."Solar Energy 78 (2005) 187-198.

Lee, Eleanor S., Dennis L. DiBartolomeo, and Stephen E. Selkowitz."Daylighting control performance of a thin-film ceramic electrochromic window: Field study results."Energy and Buildings 38 (2005) 30-44.

Anders, André."Physics of Arcing, and Implications to Sputter Deposition."Thin Solid Films (2005).

Anders, André."Plasma and Ion Sources in Large Area Coatings: A Review." (2005).

Pelletier, Jacques, and André Anders."Plasma-Based Ion Implantation and Deposition: A Review of Physics, Technology, and Applications."IEEE Transactions on Plasma Science 33 (2005) 1944-1959.

2004

Kohler, Christian, Howdy Goudey, and Dariush K. Arasteh."A First-Generation Prototype Dynamic Residential Window." (2004) 11.

Huang, Yu Joe, Robin Mitchell, Stephen E. Selkowitz, Dariush K. Arasteh, and Robert D. Clear."Development of Trade-Off Equations for EnergyStar Windows."SimBuild 2004 (2004).