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

2006

Prasher, Ravi S, Prajesh Bhattacharya, and Patrick E Phelan."Effect of Aggregation Kinetics on the Thermal Conductivity of Nanoscale Colloidal Solutions (Nanofluids)."Nanoletters 6 (2006) 1529-1534.

Tavil, Aslihan, and Eleanor S Lee."Effects of Overhangs on the Performance of Electrochromic Windows."Architectural Science Review (2006).

Kozminski, Kenneth, Stuart Lewis, and Paul A Mathew."Efficient Electrical Lighting for Laboratories." (2006).

Sartor, Dale A, and Evan Mills."Energy Use and Savings Potential for Laboratory Fume Hoods." (2006).

Diamond, Richard C, Mike Opitz, Tom Hicks, Bill Von Neida, and Shawn Herrera."Evaluating the energy performance of the first generation of LEED-certified commercial buildings."ACEEE 2006 Summer Study 3 (2006) 245-257.

Anders, André, Nitisak Pasaja, Sakon Sansongsiri, and Sunnie H.N Lim."Filtered cathodic arc deposition with ion-species-selective bias."Review of Scientific Instruments (2006).

Walker, Iain S, and Jennifer A McWilliams."Homeowner Retrofit Guide." (2006).

Wray, Craig P, Hashem Akbari, Ronnen M Levinson, and Tengfang T Xu."Inclusion of Solar Reflectance and Thermal Emittance Prescriptive Requirements for Residential Roofs in Title 24." (2006).

Akbari, Hashem, Craig P Wray, Ronnen M Levinson, and Tengfang T Xu."Inclusion of Solar Reflectance and Thermal Emittance Prescriptive Requirements for Steep-Sloped Nonresidential Roofs in Title 24." (2006).

Mathew, Paul A, and Kath Williams."LEED for Labs: Review and Outlook." (2006).

Anders, André."Metal plasmas for the fabrication of nanostructures."J. Phys. D: Appl. Phys. (2006).

Nytsch-Geusen, Christoph, Andre Nordwig, Mathias Vetter, Christoph Wittwer, Thierry Stephane Nouidui, and Peter Schneider."MOSILAB: Ein Modelica-Simulationswerkzeug zur energetischen Gebäude- und Anlagensimulation."16. Symposium Thermische Solarenergie (2006).

Polak, Elijah, and Michael Wetter."Precision control for generalized pattern search algorithms with adaptive precision function evaluations."SIAM Journal on Optimization 16.3 (2006) 650-669 . DOI

Walker, Iain S."Residential Furnace Blower Performance in U.S. Homes."Air Infiltration Review 28 (2006) 3-4.

Mathew, Paul A, and Tim Kehrli."Review of EPA Energy Efficiency Targets: A Case Study Analysis of Five EPA Buildings." (2006).

Price, Lynn K, Stephane de la Rue du Can, Jonathan E Sinton, Ernst Worrell, Nan Zhou, Jayant A Sathaye, and Mark D Levine."Sectoral trends in global energy use and greenhouse gas emissions." (2006).

Anders, André, Eungsun Byon, Dong-Ho Kim, Kentaro Fukuda, and Sunnie H.N Lim."Smoothing of ultrathin silver films by transition metal seeding."Applied Physics Letters (2006).

Mohamed, Sodky H, and André Anders."Structural, optical and electrical properties of WOxNy films deposited by reactive dual magnetron sputtering."Surface and Coatings Technology 201.6 (2006) 2977-2983. DOI

Lee, Eleanor S, and Stephen E Selkowitz."The New York Times Headquarters Daylighting Mockup: Monitored Performance of the Daylighting Control System."Energy & Buildings 38 (2006) 914-929.

Nouidui, Thierry Stephane, Christoph Nytsch-Geusen, and Andreas Holm."Validierung der eindimensionalen hygrothermischen Wandmodelle der Modelica-Bibliothek "BuildingPhysicsLibrary"."BauSIM 2006 (2006) pp.144-146.

Shaughnessy, Richard J, and Richard G Sextro."What is an Effective Air Cleaning Device? A Review."Journal of Occupational and Environmental Hygiene 3.4 (2006) 169-181. DOI

Apte, Joshua S, and Dariush K Arasteh."Window-Related Energy Consumption in the US Residential and Commercial Building Stock." (2006).

2005

Zhou, Nan, Masaru Nishida, Weijun Gao, and Chris Marnay."Assessment of Distributed Energy Adoption in Commercial Buildings. Part 1: An Analysis of Policy, Building loads, Tariff Design, and Technology Development."Bulletin of The Faculty of Engineering Kyushu Sangyo University 42 (2005) 8.

Levinson, Ronnen M, Paul H Berdahl, Asmeret A Berhe, and Hashem Akbari."Effects of soiling and cleaning on the reflectance and solar heat gain of a light-colored roofing membrane."Atmospheric Environment 39.40 (2005) 7807-7824. DOI

Levinson, Ronnen M, Paul H Berdahl, and Hashem Akbari."Solar spectral optical properties of pigments—Part I: model for deriving scattering and absorption coefficients from transmittance and reflectance measurements."Solar Energy Materials and Solar Cells 89.4 (2005) 319-349. DOI