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

1984

Kessel, Jeffrey, and Stephen E Selkowitz."Integrating Sphere Measurements of Directional-Hemispherical Transmittances of Window Systems."Illuminating Engineering Society Annual Technical Conference (1984).

Verderber, Rudolph R, and Francis M Rubinstein."New Lighting Technologies, Their Status and Impacts on Power Densities."1984 ACEES Summer Study (1984).

Selkowitz, Stephen E, Dariush K Arasteh, and Russell Johnson."Peak Demand Savings from Daylighting in Commercial Buildings."1984 ACEEE Summer Study (1984).

Spitzglas, Mark."Defining Daylighting From Windows in Terms of Candlepower Distribution Curves."IEEE/IAS 1984 Annual Meeting (1984).

Verderber, Rudolph R, and Francis M Rubinstein."Lighting Controls: The Role of Advanced Technology--Past, Present, and Future."National Research Council of Canadas Lighting Control Symposium (1984).

Klems, Joseph H."Measurement of Fenestration Performance Under Realistic Conditions."Windows in Building Design and Maintenance Conference (1984).

Sweitzer, Glenn, and Russell Johnson."Obstacles to the Use of Exterior Fenestration and Daylighting Control Systems in the U.S.."Windows in Building Design & Maintenance (1984).

Arasteh, Dariush K, Russell Johnson, and Robert Sullivan."Skylight Energy Performance and Design Optimization."Windows in Building Design and Maintanence (1984).

Verderber, Rudolph R."Fluorescent Lamp Fixtures and Ballasts."EPRI Lighting and Utility Seminar (1984).

Curtis, Richard B, Bruce E Birdsall, Walter F Buhl, Ender Erdem, Joseph H Eto, James J Hirsch, Karen H Olson, and Frederick C Winkelmann."The DOE-2 Building Energy Analysis Program."ASEAN Conference on Energy Conservation in Buildings (1984).

Research, Lighting Systems."CONTROLITE 1.0: Program Documentation." (1984).

Johnson, Russell, Stephen E Selkowitz, and Robert Sullivan."How Fenestration Can Significantly Affect Energy Use in Commercial Buildings."11th Energy Technology Conference (1984).

Diamond, Richard C, and David T Grimsrud."R.C. Diamond and D.T. Grimsrud, Manual on Indoor Air Quality,." (1984) 114.

Diamond, Richard C."Comfort and Control: Energy and Housing for the Elderly." (1984).

Modera, Mark P, Max H Sherman, and Robert C Sonderegger."Heat-Flow Measurements in Buildings." (1984).

Sherman, Max H, and S Ashley."The Calculation of Natural Ventilation and Comfort."ASHRAE Transactions 90.1B (1984).

Neeman, Eliyahu."A Comprehensive Approach to the Integration of Daylight and Electrical Light in Buildings."Energy and Buildings 6 (1984) 97-108.

Jorgenson, Gordon."A Literature Study on Electrochromic and Thermochromic Materials: Final Report." (1984).

Siminovitch, Michael J, Francis M Rubinstein, and Rudolph R Verderber."An Experimental Methodology for Determining the System Performance of Fluorescent Lamp, Ballast, Fixture Combinations Operating Under Realistic Application Conditions." (1984).

Clear, Robert D, and Sam M Berman."Analysis of a Visual Performance Experiment."Journal of the Illuminating Engineering Society 14 (1984) 448-465.

Karayel, Mahmut, Mojtaba Navvab, Eliyahu Neeman, and Stephen E Selkowitz."Daylight Availability Data for San Francisco."Energy and Buildings 6 (1984) 273-281.

Siminovitch, Michael J, Francis M Rubinstein, and Rudolph R Verderber."Determining Lamp/Ballast System Performance with a Temperature Controlled Integrating Chamber."Journal of the Illuminating Engineering Society 14 (1984) 364-378.

Lampert, Carl M."Electrochromic Materials and Devices for Energy-Efficient Windows."Solar Energy Materials 11 (1984).

Lampert, Carl M."Electrochromic Materials for the Regulation of Solar Energy Transmission through Windows." (1984).

Klems, Joseph H."Error Analysis of In-Situ Field Tests of Fenestration Performance."Energy and Buildings 8 (1984) 165-173.