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

2020

Caubel, Julien J, Vi H Rapp, Sharon S Chen, and Ashok J Gadgil."Practical design considerations for secondary air injection in wood-burning cookstoves: An experimental study."Development Engineering 5 (2020) 100049. DOI

2019

2018

Caubel, Julien J, Vi H Rapp, Sharon S Chen, and Ashok J Gadgil."Optimization of Secondary Air Injection in a Wood-Burning Cookstove: An Experimental StudyOptimization of Secondary Air Injection in a Wood-Burning Cookstove: An Experimental Study."Environmental Science & Technology 52.7 (2018) 4449 - 4456. DOI

2017

Wilson, Daniel L, Vi H Rapp, Julien J Caubel, Sharon S Chen, and Ashok J Gadgil."Verifying mixing in dilution tunnels: How to ensure cookstove emissions samples are unbiased." (2017).

Rao, Prakash, Robert Kostecki, Larry L Dale, and Ashok J Gadgil."Technology and Engineering of the Water-Energy Nexus."Annual Review of Environment and Resources 42.1 (2017) 407 - 437. DOI

2016

Rapp, Vi H, Julien J Caubel, Daniel L Wilson, and Ashok J Gadgil."Reducing Ultrafine Particle Emissions Using Air Injection in Wood-Burning Cookstoves."Environmental Science & Technology 50 (2016) 8368-8374. DOI

2015

Lask, Kathleen M, Kayje Booker, Taewon Han, Jessica Granderson, Nina Yang, Cristina Ceballos, and Ashok J Gadgil."Performance comparison of charcoal cookstoves for Haiti: Laboratory testing with Water Boiling and Controlled Cooking Tests."Energy for Sustainable Development 26 (2015) 79 - 86. DOI

2011

Booker, Kayje, Tae Won Han, Jessica Granderson, Jennifer L Jones, Kathleen M Lask, Nina Yang, and Ashok J Gadgil."Performance of Charcoal Cookstoves for Haiti, Part 1: Results from the Water Boiling Test." (2011).

Coles, Henry C, Tae Won Han, Phillip N Price, Ashok J Gadgil, and William F Tschudi."Air Corrosivity in U.S. Outdoor-Air-Cooled Data Centers is Similar to That in Conventional Data Centers." (2011).

2010

Shehabi, Arman, Srirupa Ganguly, Lara A Gundel, Arpad Horvath, Thomas W Kirchstetter, Melissa M Lunden, William F Tschudi, Ashok J Gadgil, and William W Nazaroff."Can combining economizers with improved filtration save energy and protect equipment in data centers?."Building and Environment 45.3 (2010) 718-726. DOI

Koomey, Jonathan G, Hashem Akbari, Carl Blumstein, Marilyn A Brown, Richard E Brown, Chris Calwell, Sheryl Carter, Ralph Cavanagh, Audrey Chang, David Claridge, Paul P Craig, Richard C Diamond, Joseph H Eto, William Fulkerson, Ashok J Gadgil, Howard S Geller, José Goldemberg, Charles A Goldman, David B Goldstein, Steve E Greenberg, David Hafemeister, Jeffrey P Harris, Hal Harvey, Eric Heitz, Eric Hirst, Holmes Hummel, Daniel M Kammen, Henry Kelly, John A Laitner, Mark D Levine, Amory Lovins, Gil Masters, James E McMahon, Alan K Meier, Michael Messenger, John Millhone, Evan Mills, Steven M Nadel, Bruce Nordman, Lynn K Price, Joseph J Romm, Marc Ross, Michael Rufo, Jayant A Sathaye, Leon J Schipper, Stephen H Schneider, James L Sweeney, Malcolm Verdict, Diana Vorsatz, Devra Wang, Carl Weinberg, Richard Wilk, John Wilson, and Ernst Worrell."Defining a standard metric for electricity savings."Environmental Research Letters 5.1 (2010). DOI

2007

Shehabi, Arman, William F Tschudi, and Ashok J Gadgil."Data Center Economizer Contamination and Humidity Study." (2007).

2002

Abadie, Marc O, Elizabeth U Finlayson, and Ashok J Gadgil."Infiltration heat recovery in building walls: Computational fluid dynamics investigations results." (2002).

1990

Koomey, Jonathan G, Arthur H Rosenfeld, and Ashok J Gadgil."Conservation Screening Curves to Compare Efficiency Investments to Power Plants: Applications to Commercial Sector Conservation Programs."1990 ACEEE Summer Study on Energy Efficiency in Buildings 5 (1990) 5.115-5.124.

1989

Koomey, Jonathan G, Arthur H Rosenfeld, and Ashok J Gadgil."Conservation Screening Curves to Compare Efficiency Investments to Power Plants." (1989) 20.