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.
Colum 1 +
Colum 2 +
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

1997

O'Conner, Jennifer, Eleanor S Lee, Francis M Rubinstein, and Stephen E Selkowitz."Tips for Daylighting with Windows: The Integrated Approach." (1997).

1996

Sullivan, Robert, Michael D Rubin, and Stephen E Selkowitz."Energy Performance Analysis of Prototype Electrochromic Windows."ASHRAE Transactions 103, Part 2 (1996) 149-156.

Selkowitz, Stephen E, Mary Ann Piette, Konstantinos M Papamichael, Dale A Sartor, Robert J Hitchcock, and Frank Olken."Interoperable, Life-Cycle Tools for Assuring Building Performance: An Overview of a Commercial Building Initiative."U.S. Green Buildings Council Third Annual Conference (1996).

Sullivan, Robert, Eleanor S Lee, Michael D Rubin, and Stephen E Selkowitz."The Energy Performance of Electrochromic Windows in Heating-Dominated Geographic Locations."SPIE International Symposium on Optical Materials Technology for Energy Efficiency & Solar Energy Conversion XV (1996).

Moeck, Martin, Eleanor S Lee, Michael D Rubin, Robert Sullivan, and Stephen E Selkowitz."Visual Quality Assessment of Electrochromic and Conventional Glazings."SPIE Optical Materials Technology for Energy Efficiency and Solar Energy Conversion XV (1996).

Lee, Eleanor S, Liliana O Beltran, and Stephen E Selkowitz."Demonstration of a Light-Redirecting Skylight System at the Palm Springs Chamber of Commerce."1996 ACEEE Summer Study on Energy Efficiency in Buildings: Profiting from Energy Efficiency (1996).

Eto, Joseph H, Dariush K Arasteh, and Stephen E Selkowitz."Transforming the Market for Residential Windows: Design Considerations for DOE's Efficient Window Collaborative."1996 ACEEE Summer Study on Energy Efficiency in Buildings (1996).

Sullivan, Robert, Fredric A Beck, Dariush K Arasteh, and Stephen E Selkowitz."Energy Performance of Evacuated Glazings in Residential Buildings."ASHRAE 1996 Summer Meeting, June 22-26, 1996 102, Part 2 (1996).

DiBartolomeo, Dennis L, Eleanor S Lee, Francis M Rubinstein, and Stephen E Selkowitz."Developing a Dynamic Envelope/Lighting Control System with Field Measurements."Journal of the Illuminating Engineering Society 26 (1996) 146-164.

Papamichael, Konstantinos M, John LaPorta, Hannah L Chauvet, Deirdre Collins, Thomas Trzcinski, Jack A Thorpe, and Stephen E Selkowitz."The Building Design Advisor."ACADIA 1996 Conference (1996).

Moeck, Martin, and Stephen E Selkowitz."A computer-based daylight systems design tool."Automation in Construction 5 (1996).

1995

Sullivan, Robert, Michael D Rubin, and Stephen E Selkowitz."Reducing Residential Cooling Requirements Through the Use of Electrochromic Windows."Proceedings of the Thermal Performance of the Exterior Envelopes of Buildings VI Conference (1995).

Sullivan, Robert, Stephen E Selkowitz, Ismo Heimonen, Hans Simmler, P Eggimann, Thomas Frank, Peter R Lyons, P.C Thomas, Inger Andresen, and Øyvind Aschehoug."Energy Simulation Studies in IEA/SHC Task 18 Advanced Glazing and Associated Materials for Solar and Building Applications."Windows Innovations Conference 95 (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).

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.

Olken, Frank, Evan Mills, Mary Ann Piette, Dale A Sartor, Stephen E Selkowitz, and Max H Sherman."The Role of Building Life-Cycle Information Systems in the Delivery of Energy Services."Proceedings of the NIST/EPRI: ATP: Information and Telecommunications for the U.S. Utilities Industry Focused Program Development (1995) 01/1995.

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).

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).

Koomey, Jonathan G, Francis X Johnson, Jennifer E Schuman, Ellen M Franconi, Steve E Greenberg, James D Lutz, Brent T Griffith, Dariush K Arasteh, Celina S Atkinson, Kristin E Heinemeier, Yu Joe Huang, Lynn K Price, Gregory J Rosenquist, Francis M Rubinstein, Stephen E Selkowitz, Haider Taha, and Isaac Turiel."Buildings Sector Demand-Side Efficiency Technology Summaries." (1994).

Lee, Eleanor S, Stephen E Selkowitz, Francis M Rubinstein, Joseph H Klems, Liliana O Beltran, Dennis L DiBartolomeo, and Robert Sullivan."Developing Integrated Envelope and Lighting Systems for Commercial Buildings."Solar '94: Golden Opportunities for Solar Prosperity (1994).

Lee, Eleanor S, Deborah Hopkins, Michael D Rubin, Dariush K Arasteh, and Stephen E Selkowitz."Spectrally Selective Glazings for Residential Retrofits in Cooling-Dominated Climates."ASHRAE Transactions 100.1 (1994).

1993

Selkowitz, Stephen E, Eleanor S Lee, Francis M Rubinstein, Joseph H Klems, Konstantinos M Papamichael, Liliana O Beltran, Dennis L DiBartolomeo, and Robert Sullivan."Realizing the DSM Potential of Integrated Envelope and Lighting Systems."2nd National New Construction Programs for Demand-Side Management Conference (1993).