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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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

1993

Walker, Iain S, and David J Wilson."Evaluating Models for Superposition of Wind and Stack Effects in Air Infiltration."Building and Environment 28.2 (1993) 201-210.

Jiang, Yi, and Tianzhen Hong."Stochastic analysis of building thermal processes."Building and Environment 28.4 (1993) 209-218. DOI

Jiang, Yi, and Tianzhen Hong."Stochastic analysis of overheating risk in buildings."CLIMA 2000 (1993).

Sherman, Max H, and Nance Matson."Ventilation-Energy Liabilities in U.S. Housing."Proceedings 14th Air Infiltration and Ventilation Centre Conference (1993).

Klems, Joseph H."A New Method for Predicting the Solar Heat Gain of Complex Fenestration Systems II. Detailed Description of the Matrix Layer Calculation."ASHRAE Transactions 100.1 (1993).

Beck, Fredric A, and Dariush K Arasteh."A Validation of the WINDOW4/FRAME3 Linear Interpolation Methodology."ASHRAE Transactions 100, Part 1 (1993).

Forest, Tom W, and Iain S Walker."Attic Ventilation and Moisture." (1993).

Walker, Iain S."Attic Ventilation, Heat and Moisture Transfer."Department of Mechanical Engineering Ph.D. (1993).

Lampert, Carl M, Steven J Visco, Marca M Doeff, Yan Ping Ma, Yongxiang He, and Jean-Christophe Giron."Characteristics of Laminated Electrochromic Devices Using Polyorganodisulfate Electrodes."SPIE Proceedings 2017 (1993) 143.

."Daylighting Design Tool Survey." (1993).

Wray, Craig P."Development of Usable Techniques for Designing, Commissioning, and Testing Smoke Control Systems."G.K. Yuill and Associates (B.C.) Ltd. Report to Public Works Canada (1993).

Wilson, David J, and Iain S Walker."Infiltration Data From the Alberta Home Heating Research Facility."AIVC Technical Note 41 (1993).

Ross, Jennifer T, Michael D Rubin, X Yao, Nathan Newman, and Amy Moll."Ion Implantation of Mg and C into GaN Films Grown by Ion-Assisted MBE." (1993).

Berman, Sam M, George Fein, Don L Jewett, and F Ashford."Landolt C Recognition in Elderly Subjects is Affected by Scotopic Intensity of Surround Illuminants."Journal of the Illuminating Engineering Society 23 (1993).

Berman, Sam M, George Fein, Don L Jewett, and F Ashford."Luminance Controlled Pupil Size Affects Landolt C Task Performance."Journal of the Illuminating Engineering Society 22 (1993).

Yazdanian, Mehry, and Joseph H Klems."Measurement of the Exterior Convective Film Coefficient for Windows in Low-Rise Buildings."ASHRAE Transactions 100, Part 1 (1993).

Akbari, Hashem, Sarah E Bretz, James W Hanford, Dan M Kurn, Beth L Fishman, and Haider Taha."Monitoring peak power and cooling energy savings of shade trees and white surfaces in the Sacramento Municipal Utility District (SMUD) service area: data analysis, simulations, and results." (1993).

Rubin, Michael D, Nathan Newman, James S Chan, T.C Fu, and Jennifer T Ross."P-Type Gallium Nitride by Reactive Ion-Beam Molecular Beam Epitaxy with Ion Implantation, Diffusion or Coevaporation of Mg."Applied Physics Letters 64.1 (1993) 64-66. DOI

Piette, Mary Ann, Bruce Nordman, Odon D Buen, and Richard C Diamond."Predicted versus Monitored Performance of Energy-Efficiency Measures in New Commerical Buildings from Energy Edge."6th International Energy Program Evaluation Conference, Chicago, Illinois. (1993).

Sailor, David J."Role of Surface Characteristics in Urban Meteorology and Air Quality." (1993).

Frost, Karl J, Dariush K Arasteh, and Joseph H Eto."Savings from Energy Efficient Windows: Current and Future Savings from New Fenestration Technologies in the Residential Market." (1993).

Papamichael, Konstantinos M, and Liliana O Beltran."Simulating the Daylight Performance of Fenestration Systems and Spaces of Arbitrary Complexity: The IDC Method."3rd International Conference of the International Building Performance Simulation Association, Building Simulation 93 (1993).

Inc, EIC Laboratories."Solid State Electrochromatic Smart Windows." (1993).

Finlayson, Elizabeth U, Dariush K Arasteh, Charlie Huizenga, Michael D Rubin, and M. M Susan Reilly."Window 4.0: Documentation of Calculation Procedures." (1993).

Sullivan, Robert, Karl J Frost, Dariush K Arasteh, and Stephen E Selkowitz."Window U-Value Effects on Residential Cooling Load." (1993).