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

Koomey, Jonathan G, Richard E Brown, R. R Cooper Richey, Francis X Johnson, Alan H Sanstad, and Leslie J Shown."Residential Sector End-use Forecasting with EPRI-REEPS 2.1: Summary Input Assumptions and Results." (1995).

Sezgen, Osman, and Jonathan G Koomey."Technology data characterizing refrigeration in commercial buildings: Application to end-use forecasting with COMMEND 4.0." (1995).

Jennings, Judy D, Richard E Brown, Mithra M Moezzi, Evan Mills, and Robert Sardinsky."An Assessment of the U.S. Residential Lighting Market." (1995).

Page, Erik, Chad Praul, and Michael J Siminovitch."A Comparative Candlepower Distribution Analysis for Compact Fluorescent Table Lamp Systems."1995 Illuminating Engineering Society of North America Annual Conference 26 (1995).

Crawford, Douglas G, Carl T Gould, Michael Packer, Francis M Rubinstein, and Michael J Siminovitch."An In-Situ Photometric and Energy Analysis of a Sulfur Lamp Lighting System."Illuminating Engineering Society of North America (1995).

Clear, Robert D."Relationships between the VL and Reaction Time Models."IESNA Conference 25 (1995) 14-24.

Crawford, Douglas G, Carl T Gould, Michael Packer, Francis M Rubinstein, and Michael J Siminovitch."A Photometric and Energy Assessment of a Novel Lighting System."3rd European Conference on Energy-Efficiency Lighting, Right Light Three (1995).

Berman, Sam M, George Fein, Don L Jewett, Blaine R Benson, T.M Law, and Alan M Myers."Luminance-Controlled Pupil Size Affects Word Reading Accuracy."Journal of the Illuminating Engineering Society 25 (1995).

Clear, Robert D, and Richard G Mistrick."Multilayer Polarizers: A Review of the Claims."Journal of the Illuminating Engineering Society 25 (1995).

Berman, Sam M, Mark A Bullimore, Ian L Bailey, and Robert J Jacobs."The Influence of Spectral Composition on Discomfort Glare for Large Size Sources."Journal of the Illuminating Engineering Society 25 (1995).

Siminovitch, Michael J, and Evan Mills."The Next Generation of Programs for Accelerating Compact Fluorescent Technology in Residential Applications."Lighting Design + Application (1995).

Berman, Sam M."The Reengineering of Lighting Photometry." (1995).

1994

Berman, Sam M."Implications of Rod Sensitivity to Interior Lighting Practice."CIE Symposium on Advances in Photometry (1994).

Berman, Sam M, George Fein, Don L Jewett, Blaine R Benson, T.M Law, and Alan M Myers."Visual Performance and Light Spectrum: The Inadequacy of Conventional Photometry."CIE Symposium on Advances in Photometry (1994).

Siminovitch, Michael J, Eric Pankonin, Chad Praul, and Chin Zhang."Improving the Performance of Integral Screw-Base Compact Fluorescent Lamps in a Base-Down Burning Position Using Thermal Bridge Systems."IESNA Annual Conference (1994).

Rushmeier, Holly, and Gregory J Ward."Energy Preserving Non-Linear Filters."SIGGRAPH 94 (1994).

Johnson, Francis X, James W Hanford, Richard E Brown, Alan H Sanstad, and Jonathan G Koomey."Residential HVAC Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1." (1994).

Hwang, Roland J, Francis X Johnson, Richard E Brown, James W Hanford, Alan H Sanstad, and Jonathan G Koomey."Residential Appliance Data, Assumptions and Methodology for End-Use Forecasting with EPRI-REEPS 2.1." (1994).

Sezgen, Osman, Yu Joe Huang, Joseph H Eto, Barbara A Atkinson, and Jonathan G Koomey."Technology data characterizing lighting in commercial buildings: Application to end-use forecasting with COMMEND 4.0." (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).

Berman, Sam M, Mark A Bullimore, Robert J Jacobs, Ian L Bailey, and Neeraj J Gandhi."An Objective Measure of Discomfort Glare."Journal of the Illuminating Engineering Society 23 (1994) 40-49.

Siminovitch, Michael J."Centralized Lighting Systems for Office Interiors."Journal of the Russian Illuminating Engineering Society (Sveto Tekhnika) (1994).

Clear, Robert D, and Sam M Berman."Environmental and Health Aspects of Lighting: Mercury."Journal of the Illuminating Engineering Society 23 (1994) 138-156.

1993

Packer, Michael, and Francis M Rubinstein."Developing Practical Reflectors for Cylindrical and Compact Fluorescent Lamps Based on Nonimaging Optics."Annual IEEE-IAS Conference (1993).

Siminovitch, Michael J, Andrew Hamilton, Chin Zhang, and Rudolph R Verderber."Dirt Depreciation of Compact Fluorescent Lamp Downlights."Annual IEEE-IAS Conference (1993). DOI