| Building Technology and Urban Systems

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.
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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.

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).

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).

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).

Morse, Oliver C."High-Frequency Starting of Fluorescent Lamps."ANSI Meeting, Subcommittee C82-1 on Fluorescent Lamp Ballasts (1981).

Bryan, Harvey J, Alexander Lohr, R. R Christophe Mathis, and James Rosen."The Use of Physical Scale Models for Daylighting Analysis."6th National Passive Solar Conference (1981) 865-869.

Selkowitz, Stephen E."Daylighting as a Design and Energy Strategy."Energy and Big Building Design Symposium (1981).

Nelson, Peter E, G McDougal, and Philip Haves."Economic Analysis of Desiccant Dehumidifiers in Passive Solar Residences."1981 Annual Meeting of ASISE (1981).

Boehm, Robert F, and Kurt Brändle."Testing of Air-Flow Windows for Evaluation and Application."ASME Solar Energy Division Conference (1981).