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

2001

Ting, Michael K, Jonathan G Koomey, and Melvin Pomerantz."Preliminary evaluation of the lifecycle costs and market barriers of reflective pavements." (2001). DOI

Wray, Craig P, and Max H Sherman."Residential Commissioning to Assess Envelope and HVAC System Performance."Proceedings of the ASHRAE/DOE/BTECC Thermal Performance of Exterior Envelopes of Whole Buildings VIII, Clearwater Beach, FL (2001).

Walker, Iain S, Jeffrey A Siegel, and Gwladys Degenetais."Simulation of Residential HVAC System Performance."Proceedings of the ESIM 2001 Conference, Ontario, Canada (2001) 43-50.

Klems, Joseph H."Solar Heat Gain through Fenestration Systems Containing Shading: Summary of Procedures for Estimating Performance from Minimal Data." 108, Part 1 (2001) 512-524.

Bell, Geoffrey C, Dale A Sartor, and Evan Mills."The Berkeley Hood: Development and Commercialization of an Innovative High-Performance Laboratory Fume Hood. Progress Report and Research Status: 1995-2001." (2001).

Arney, Michael, James Fairman, John Carmody, and Dariush K Arasteh."The Integrated Energy-Efficiency Window-Wall System." (2001).

Group, Windows and Daylighting."THERM 5.0 User's Manual." (2001).

Sherman, Max H, and David A Jump."Thermal Conservation in Buildings."CRC Handbook of Heating, Ventilation, and Air Conditioning (2001) 6.92-120.

Mitchell, Robin, Christian Kohler, Dariush K Arasteh, Charlie Huizenga, and Dragan C Curcija."WINDOW 5.0 User Manual for Analyzing Window Thermal Performance." (2001).

2000

Gustavsen, Arlid, Brent T Griffith, and Dariush K Arasteh."Natural Convection Effects in Three-Dimensional Window Frames with Internal Cavities."ASHRAE Transactions 107, Part 2 (2000).

Gustavsen, Arlid, Brent T Griffith, and Dariush K Arasteh."Three-Dimensional Conjugate Computational Fluid Dynamics Simulations of Internal Window Frame Cavities Validated Using IR Thermography."ASHRAE Transactions 107.2 (2000) 538-549.

Akbari, Hashem, and Leo I Rainer."Measured energy savings from the application of reflective roofs in 3 AT&T regeneration buildings." (2000).

Rubin, Michael D, and Rebecca Powles."Optical Properties of Glazing Materials at Normal Incidence."Revista della Statzione Sperimentale del Vetro (2000) 13-16.

Sherman, Max H."ASHRAE’s Residential Ventilation Standard: Exegesis of Proposed Standard 62.2."Proceedings ASHRAE-CIBSE Symposium (2000).

Levinson, Ronnen M, William W Delp, Darryl J Dickerhoff, and Mark P Modera."Effects of airflow infiltration on the thermal performance of internally insulated ducts."Energy and Buildings 32.3 (2000) 345-354. DOI

Sherman, Max H."IAQ Proposals for Houses."IAQ Applications- ASHRAE 1.4 (2000) 1-3.

Huang, Yu Joe, and Jim Brodrick."A bottom-up engineering estimate of the aggregate heating and cooling loads of the entire U.S. building stock."2000 ACEEE Summer Study on Energy Efficiency in Buildings (2000).

Wenzel, Thomas P, and Robert Sawyer."Analysis of a State Data on In-Use Emissions from Motor Vehicles (EPA Interagency Agreement DW89938103-01-1): Review of Work Completed." (2000).

Laine, Tuomas, Risto Kosonen, Kim Hagström, Panu Mustakallio, De-Wei Yin, Philip Haves, and Qingyan Chen."Better IAQ Through Integrating Design Tools For The HVAC Industry."Healthy Buildings 2000 (2000).

Kawamoto, Kaoru, Jonathan G Koomey, Bruce Nordman, Richard E Brown, Mary Ann Piette, and Alan K Meier."Electricity Used by Office Equipment and Network Equipment in the U.S.."2000 ACEEE Summer Study on Energy Efficiency in Buildings (2000).

Richardson, Thomas J, Jonathan L Slack, and Michael D Rubin."Electrochromism in Copper Oxide Thin Films."4th International Meeting on Electrochromism (2000).

Konopacki, Steven J, and Hashem Akbari."Energy savings calculations for heat island reduction strategies in Baton Rouge, Sacramento, and Salt Lake City."2000 ACEEE Summer Study on Energy Efficiency in Buildings 9 (2000) 215-226.

Rubinstein, Francis M, and Stephen G Johnson."IBECS: An Integrated Building Environmental Communications System--Its Not Your Fathers Network."2000 ACEEE Summer Study on Energy Efficiency in Buildings (2000).

Mitchell, Jeffrey C, Michael J Siminovitch, Erik Page, Kevin W Gauna, and Doug A Avery."Integrated Lighting Approach Saves Energy in Post Office Facilities."2000 ACEEE Summer Study on Energy Efficiency in Buildings (2000).

Richardson, Thomas J, and Michael D Rubin."Liquid Phase Deposition of Electrochromic Thin Films."Electrochimica Acta 46 (2000) 2119-2123.