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

1994

Reilly, M. M Susan, Frederick C Winkelmann, Dariush K Arasteh, and William L Carroll."Modeling Windows in DOE 2.1E."Thermal Performance of the Exterior Envelopes of Buildings V Conference (1994).

Ward, Gregory J."A Contrast-Based Scalefactor for Luminance Display." (1994).

Özer, Nilgün, Timothy Barreto, Temel Buyuklimanl, and Carl M Lampert."Characterization of Sol-Gel Deposited Niobium Pentoxide Films for Electrochromic Devices."Solar Energy Materials and Solar Cells 36 (1994) 433-443.

Özer, Nilgün, Yongxiang He, and Carl M Lampert."Characterization of Tantalum Oxide Films Prepared by Sol-Gel Process for electrochemical devices." (1994).

Newman, Nathan, T.C Fu, Z Liu, Zuzanna Liliental-Weber, Michael D Rubin, James S Chan, Erin C Jones, Jennifer T Ross, Ian M Tidswell, Kin Man Yu, Nathan W Cheung, and Eicke R Weber."Fundamental Materials-Issues Involved in the Growth of GaN by Molecular Beam Epitaxy." (1994).

Lee, Eleanor S, Deborah Hopkins, Michael D Rubin, Dariush K Arasteh, and Stephen E Selkowitz."Spectrally Selective Glazings for Residential Retrofits in Cooling-Dominated Climates."ASHRAE Transactions 100.1 (1994).

Arasteh, Dariush K, Elizabeth U Finlayson, and Charlie Huizenga."WINDOW 4.1: Program Description." (1994).

1993

Lampert, Carl M."Towards Large-area Photovoltaic Nanocells: Experiences Learned from Smart Window Technology."Solar Energy Materials and Solar Cells 32.3 (1993) 307-321. DOI

Klems, Joseph H."A New Method for Predicting the Solar Heat Gain of Complex Fenestration Systems I. Overview and Derivation of the Matrix Layer Calculation."ASHRAE Transactions 100, Part 1 (1993).

Lampert, Carl M."Optical Switching Technology for Glazing."Thin Solid Films 236.1-2 (1993) 6-13. DOI

Griffith, Brent T, Daniel Turler, and Dariush K Arasteh."Optimizing the Effective Conductivity and Cost of Gas-Filled Panel Thermal Insulations."22nd International Thermal Conductivity Conference (1993).

Osterhaus, Werner K.E."Office Lighting: A Review of 80 Years of Standards and Recommendations."1993 IEEE Industry Applications Society Annual Meeting (1993).

Arasteh, Dariush K, Fredric A Beck, Nehemiah Stone, William DuPont, R. R Christophe Mathis, and Michael Koenig."Phase I Results of the NFRC U-Value Procedure Validation Project."ASHRAE Transactions 100, Pt. 1 (1993).

Chan, James S, T.C Fu, Nathan W Cheung, Jennifer T Ross, Nathan Newman, and Michael D Rubin."Comparison of AIN Films Grown by RF at Magnetron Sputtering and Ion-Assisted Molecular Beam Epitaxy."Materials Research Society 300 (1993).

Papamichael, Konstantinos M, Liliana O Beltran, Reto A Furler, Eleanor S Lee, Stephen E Selkowitz, and Michael D Rubin."The Energy Performance of Prototype Holographic Glazings." (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).

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).

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).

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).

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

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).