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

1995

Ward, Gregory J."Making Global Illumination User Friendly."6th Eurographics Workshop on Rendering (1995).

Crooks, Brian, James Larsen, Robert Sullivan, Dariush K Arasteh, and Stephen E Selkowitz."NFRC Efforts to Develop a Residential Fenestration Annual Energy Rating Methodology."Window Innovations Conference 1995 (1995).

Arasteh, Dariush K, Elizabeth U Finlayson, Michael D Rubin, and John Sadlier."Recent Technical Improvements to the WINDOW Computer Program."Window Innovations 95 (1995).

Özer, Nilgün, and Carl M Lampert."Sol-Gel Deposited Amorphous Tantalum Oxide and Niobium Oxide Films as Protonic Conductors."Proceedings of the Window Innovations 95 Conference (1995).

Özer, Nilgün, and Carl M Lampert."Sol-Gel Deposited Electrochromic Coatings."Am. Optical Society, Technical Digest 17 (1995) 344-347.

Beck, Fredric A, Brent T Griffith, Daniel Turler, and Dariush K Arasteh."Using Infrared Thermography for the Creation of a Window Surface Temperature Database to Validate Computer Heat Transfer Models."Windows Innovations Conference 95 (1995).

Griffith, Brent T, Dariush K Arasteh, and Daniel Turler."Energy Efficiency Improvements for Refrigerator/Freezers Using Prototype Doors Containing Gas-Filled Panel Insulating Systems."Proceedings of the 46th International Appliance Technical (1995).

Anders, Simone, André Anders, Michael D Rubin, Zhien Wang, Sebastien Raoux, Fanping Kong, and Ian G Brown."Formation of Metal Oxides by Cathodic Arc Deposition."International Conference on Metallurgical Coatings and Thin Films, April 24-28, 1995 (1995).

Fu, T.C, Nathan Newman, Erin C Jones, James S Chan, Xiaohong Liu, Michael D Rubin, Nathan W Cheung, and Eicke R Weber."The Influence of Nitrogen Ion Energy on the Quality of GaN Films Grown with Molecular Beam Epitaxy."Journal of Electronic Materials 24.4 (1995) 249-255. DOI

Beck, Fredric A, Brent T Griffith, Daniel Turler, and Dariush K Arasteh."An Infrared Thermography-Based Window Surface Temperature Database for the Validation of Computer Heat Transfer Models." (1995).

Simko, Tom M, Richard E Collins, Fredric A Beck, and Dariush K Arasteh."Edge Conduction in Vacuum Glazing."Thermal Performance of the Exterior Envelopes of Buildings VI Conference (1995).

Arasteh, Dariush K."Advances in Window Technology: 1973-1993."Advances in Solar Energy, An Annual Review of Research and Development (1995) 339-382.

Klems, Joseph H, and Guy O Kelley."Calorimetric Measurements of Inward-Flowing Fraction for Complex Glazing and Shading Systems."ASHRAE Transactions 102, Part 1 (1995).

Klems, Joseph H, and Jeffrey L Warner."Measurement of Bidirectional Optical Properties of Complex Shading Devices."ASHRAE Transactions 101, Part 1 (1995).

von Rottkay, Klaus, Michael D Rubin, and Nilgün Özer."Optical Indices of the Tin-doped Indium Oxide and Tungsten Oxide Electrochromic Coatings."Material Research Society Symposium 403 (1995) 551-556.

Lampert, Carl M."Switchable Glazing: Science and Technology of Smart Windows."Society of Vacuum Coaters 38th Annual Technical Conference (1995).

Lee, Eleanor S, and Stephen E Selkowitz."The Design and Evaluation of Integrated Envelope and Lighting Control Strategies for Commercial Buildings."ASHRAE Transactions 101.1 (1995) 326-342.

1994

Lee, Eleanor S, Stephen E Selkowitz, Francis M Rubinstein, Joseph H Klems, Liliana O Beltran, and Dennis L DiBartolomeo."A Comprehensive Approach to Integrated Envelope and Lighting Systems for New Commercial Buildings."ACEEE 1994 Summer Study on Energy Efficiency in Buildings (1994).

Group, Windows and Daylighting, and Carl M Lampert."Glazing Material for Solar and Architectural Applications." (1994).

Ward, Gregory J."The RADIANCE Lighting Simulation and Rendering System."SIGGRAPH 94 (1994).

Arasteh, Dariush K, Brent T Griffith, and Paul LaBerge."Integrated Window Systems: An Advanced Energy-Efficient Residential Fenestration Product."19th National Passive Solar Conference (1994).

Beltran, Liliana O, Eleanor S Lee, Konstantinos M Papamichael, and Stephen E Selkowitz."The Design and Evaluation of Three Advanced Daylighting Systems: Light Shelves, Light Pipes and Skylights."Solar 94, Golden Opportunities for Solar Prosperity (1994).

Selkowitz, Stephen E, Michael D Rubin, Eleanor S Lee, and Robert Sullivan."A Review of Electrochromic Window Performance Factors."SPIE 13. International Symposium on Optical Materials Technology for Energy Efficiency and Solar Energy Conversion (1994).

Sullivan, Robert, Eleanor S Lee, Konstantinos M Papamichael, Michael D Rubin, and Stephen E Selkowitz."Effect of Switching Control Strategies on the Energy Performance of Electrochromic Windows."SPIE International Symposium on Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XIII, April 18-22, 1994 (1994).

Papamichael, Konstantinos M, Liliana O Beltran, Reto A Furler, Eleanor S Lee, Stephen E Selkowitz, and Michael D Rubin."Simulating the Energy Performance of Holographic Glazings."13th SPIE International Symposium on Optical Materials Technology for Energy Efficiency and Solar Energy Conversion (1994).