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

1982

Klems, Joseph H, Stephen E Selkowitz, and Sy Horowitz."A Mobile Facility for Measuring Net Energy Performance of Windows and Skylights."3rd International CIB Symposium on Energy Conservation in the Built Environment (1982).

Sherman, Max H, Mark P Modera, and David T Grimsrud."A Predictive Air Infiltration Model—Field Validation and Sensitivity Analysis."Proceedings of the Third International Symposium on Energy Conservation in the Built Environment (1982).

Lampert, Carl M."Advanced Heat-Mirror Films for Energy-Efficient Windows."The Renewable Challenge: Proceedings of the ASISES Annual Meeting (1982) 733-738.

Klems, Joseph H."Design and Construction of Large-Area Heat-Flow Sensors for Measuring Building Heat Flow."ASHRAE Transactions 88 (1982).

Selkowitz, Stephen E."Design Tools for Daylighting Illumination and Energy Analysis." (1982).

Peterson, David, and Francis M Rubinstein."Energy Savings Through Effective Lighting Control."Lighting Design + Application 13 (1982).

Johnson, Richard, Stephen E Selkowitz, Frederick C Winkelmann, and Michael Zentner."Glazing Optimization Study for Energy Efficiency in Commercial Office Buildings."3rd International CIB Symposium on Energy Conservation in the Built Environment (1982).

Rubin, Michael D."Infrared Properties of Polyethylene Terephthalate Films."Solar Energy Materials 6 (1982) 375-380.

Lampert, Carl M."Innovative Solar Optical Materials."Optical Engineering 23 (1982) 92-97.

Klems, Joseph H, and Dennis L DiBartolomeo."Large-Area, High-Sensitivity Heat-Flow Sensor."Review of Scientific Instruments 53 (1982) 1609-1612.

Lampert, Carl M."Materials Chemistry and Optical Properties of Transparent Thin Films for Solar Energy Utilization."The Vortex 42 (1982).

Selkowitz, Stephen E, and Frederick C Winkelmann."New Models for Analyzing the Thermal and Daylighting Performance of Fenestration."ASHRAE Transactions 88 (1982).

Clear, Robert D, and Sam M Berman."Relating Productivity to Visibility and Lighting."The Integration of Visual Performance Criteria into the Illumination Design Process (1982) 184-212.

Rubin, Michael D."Solar Optical Properties of Windows."International Journal of Energy Research 6 (1982) 123-133.

Selkowitz, Stephen E, Jong-Jin Kim, Mojtaba Navvab, and Frederick C Winkelmann."The DOE-2 and Superlite Daylighting Programs."Passive 82 (1982).

Sonderegger, Robert C, Max H Sherman, and J.W Adams."The Envelope Thermal Test Unit (ETTU): Field Measurement of Wall Performance."Proceedings of the Third International Symposium on Energy Conservation in the Built Environment (1982).

1981

Nelson, Peter E, and Philip Haves."Design and Operating Strategies and Sizing Relationships for Solar Regenerated Desiccant Dehumidifiers Used with Passive Cooling Systems."1st International Passive & Hybrid Cooling Conference (1981).

Nelson, Peter E, and Philip Haves."Experimental Validation of a Computer Model of a Solar Regenerated Desiccant Dehumidification System."1st International Passive & Hybrid Cooling Conference (1981).

Haines, R, Philip Haves, D Vollink, Arthur Bowen, and Gene Clark."Heat Loss Rates from Wetted Tilted Surfaces."1st International Passive and Hybrid Cooling Conference, November 6-16, 1981 (1981).

Loxsom, Fred M, Gene Clark, M Merino, and Philip Haves."Measurement of Components of Heat Transfer in Passive Cooling Systems."1st International Passive & Hybrid Cooling Conference (1981).

Haves, Philip."Simulated Performance of a Passively Cooled Residence with a Solar Regenerated Desiccant Dehumidifier."1st International Passive & Hybrid Cooling Conference (1981).

Navvab, Mojtaba."Development and Use of a Hemispherical Sky Simulator." (1981).

Selkowitz, Stephen E."A Hemispherical Sky Simulator for Daylighting Model Studies."6th National Passive Solar Conference (1981).

Rubinstein, Francis M."Energy-Saving Benefits of Automatic Lighting Controls."International Energy Management and Facilities Improvement Show (1981).

Diamond, Richard C, and David T Grimsrud."Guidelines for Infiltration Reduction in Light Frame Buildings."Proceedings of the Wall and Floor Systems: Design and Performance of Light Frame Structures (1981).