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

1998

Walker, Iain S, Jeffrey A Siegel, Karl A Brown, and Max H Sherman."Saving Tons at the Register."Proceedings of the 1998 ACEEE Summer Study on Energy Effciency in Buildings, Pacific Grove, CA 1 (1998) 367-383.

Webber, Carrie A, and Richard E Brown."Savings Potential of ENERGY STAR Voluntary Labeling Programs."1998 ACEEE Summer Study on Energy Efficiency in Buildings 9 (1998) 9.271-9.282.

Konopacki, Steven J, and Hashem Akbari."Simulated impact of roof surface solar absorptance, attic, and duct insulation on cooling and heating energy use in single-family new residential buildings." (1998).

Walker, Iain S."Technical Background for Default Values used for Forced Air Systems in Proposed ASHRAE Standard 152P."ASHRAE Transactions 104.1A (1998) 1360-1375.

Haves, Philip, and Edward F Sowell."The application of Problem Reduction Techniques Based on Graph Theory to the Simulation of Non-Linear Continuous Systems."EUROSIM’98 (1998) pp. 203-207.

Lee, Eleanor S, Dennis L DiBartolomeo, and Stephen E Selkowitz."The Effect of Venetian Blinds on Daylight Photoelectric Control Performance."Journal of the Illuminating Engineering Society 28 (1998).

Dolin, Jennifer R, and Ned R Raynolds."The ENERGY STAR Purchasing Initiative."ACEEE Volume 7 (1998).

Finlayson, Elizabeth U, Robin Mitchell, Dariush K Arasteh, Charlie Huizenga, and Dragan C Curcija."THERM 2.0: a PC Program for Analyzing Two-Dimensional Heat Transfer through Building products." (1998).

Sullivan, Robert, and Frederick C Winkelmann."Validation studies of the DOE-2 Building Energy Simulation Program. Final Report." (1998).

Feustel, Helmut E, and Richard C Diamond."Ventilation in Highrise Apartments."Proceedings of the Room Vent 1998 Conference, Stockholm, Sweden (1998).

1997

Klems, Joseph H."Greenhouse Window U-Factors Under Field Conditions."ASHRAE Transactions 104, Part 1 (1997).

Arasteh, Dariush K, Elizabeth U Finlayson, Dragan C Curcija, Jeff Baker, and Charlie Huizenga."Guidelines for Modeling Projecting Fenestration Products."ASHRAE Transactions 104, Part 1 (1997).

Griffith, Brent T, Elizabeth U Finlayson, Mehry Yazdanian, and Dariush K Arasteh."The Significance of Bolts in the Thermal Performance of Curtain-Wall Frames for Glazed Façades."ASHRAE Transactions 104, Part 1 (1997).

Vorsatz, Diana, Leslie J Shown, Jonathan G Koomey, Mithra M Moezzi, Andrea Denver, and Barbara A Atkinson."Lighting Market Sourcebook for the U.S.." (1997). DOI

Huang, Yu Joe, Robert Sullivan, Dariush K Arasteh, and Robin Mitchell."RESFEN 3.0: A PC Program for Calculating the Heating and Cooling Energy Use of Windows in Residential Buildings." (1997) 38.

Siminovitch, Michael J, Carl T Gould, and Erik Page."A High-Efficiency Indirect Lighting System Utilizing the Solar 1000 Sulfur Lamp."4th European Conference on Energy-Efficient Lighting (1997).

von Rottkay, Klaus, Thomas J Richardson, Michael D Rubin, Jonathan L Slack, and Lisen Kullman."Influence of stoichiometry on the electrochromic cerium-titanium oxide compounds."11th International Conference of Solid State Ionics (1997).

Page, Erik, Evan Mills, and Michael J Siminovitch."New Energy Efficient Torchieres Ready for Hot Torchiere Market."Energy Efficiency in Household Appliances (1997).

Rubinstein, Francis M, Doug A Avery, Judy D Jennings, and Steven L Blanc."On the Calibration and Commissioning of Lighting Controls."4th European Conference on Energy-Efficient Lighting (1997).

Page, Erik, and Michael J Siminovitch."Photometric Assessment of Energy Efficient Torchieres."4th European Conference on Energy-Efficient Lighting (1997).

Wenzel, Thomas P, Jonathan G Koomey, Gregory J Rosenquist, Marla C Sanchez, and James W Hanford."Energy Data Sourcebook for the U.S. Residential Sector." (1997).

Haves, Philip."Fault Modelling in Component-based HVAC Simulation."Building Simulation '97 (1997).

Levine, Mark D, Jonathan G Koomey, Lynn K Price, and Nathan C Martin."Scenarios of U.S. Carbon Reductions: Potential Impacts of Energy-Efficient and Low-Carbon Technologies by 2010 and Beyond." (1997).

Buswell, Richard A, Philip Haves, and Tim I Salsbury."A Model-Based Approach to the Commissioning of HVAC Systems."CLIMA 2000 (1997).

Papamichael, Konstantinos M, John LaPorta, and Hannah L Chauvet."Building Design Advisor: Automated Integration of Multiple Simulation Tools."Automation in Construction 6.4 (1997) 341-352. DOI