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

Siegel, Jeffrey A, and Van P Carey."Fouling of HVAC Fin and Tube Heat Exchangers." (2001).

Walker, Iain S."Sensitivity of forced air distribution system efficiency to climate, duct location, air leakage and insulation." (2001).

Rubinstein, Francis M, Danielle Neils, and Nesrin Colak."Daylighting, Dimming, and the Electricity Crisis in California."2001 IESNA National Conference (2001).

Keith, David M, and Francis M Rubinstein."Effect of Occupancy Sensors on Energy Usage and Peak Demand in Commercial Office Buildings: Part 1."2001 Conference of the Illuminating Engineering Society of North America (IES) (2001).

Rees, Simon J, James J McGuirk, and Philip Haves."Numerical Investigation of Transient Buoyant Flow in a Room with a Displacement Ventilation and Chilled Ceiling System."International Journal of Heat and Mass Transfer 44.16 (2001) 3067-3080. DOI

Ehrlich, Charles K, Konstantinos M Papamichael, Judy Lai, and Kenneth L Revzan."Simulating the Operation of Photosensor-Based Lighting Controls."2001 Building Simulation 7th International Building Performance Simulation Association Conference (2001).

Zhai, Zhiqiang, Qingyan Chen, Joseph H Klems, and Philip Haves."Strategies for Coupling Energy Simulation Programs and Computational Fluid Dynamics Programs."Building Sim 2001 1 (2001) 59-66.

Haves, Philip, Tim I Salsbury, David Claridge, and Mingsheng Liu."Use of Whole Building Simulation in On-Line Performance Assessment: Modeling and Implementation Issues."Building Simulation ’01 (2001).

Rees, Simon J, and Philip Haves."A Nodal Model for Displacement Ventilation and Chilled Ceiling Systems in Office Spaces."Building and Environment 36.6 (2001) 753-762. DOI

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 Conference 4 (2001) 279-284.

Tschudi, William F, Kathleen Benschine, Stephen Fok, and Peter Rumsey."Cleanroom Energy Benchmarking in High-Tech and Biotech Industries."2001 ACEEE Summer Study on Energy Efficiency in Industry (2001).

Sreedharan, Priya, and Philip Haves."Comparison of Chiller Models for use in Model-Based Fault Detection."International Conference for Enhancing Building Operations (2001).

Kinney, Satkartar, Mary Ann Piette, Lixing Gu, and Philip Haves."Demand Relief and Weather Sensitivity in Large California Commercial Buildings."International Conference for Enhancing Building Operations (2001).

Wenzel, Thomas P, and Marc Ross."Losing Weight to Save Lives: A Review of the Role of Automobile Weight and Size in Traffic Fatalities." (2001).

Bazjanac, Vladimir."Acquisition of Building Geometry in the Simulation of Energy Performance."7th International IBPSA Conference Building Simulation 2001 (2001) 305-312.

Wenzel, Thomas P."Can More Frequent Testing Improve I/M Program Effectiveness? Analysis ofthe Effect of Annual Testing in the Phoenix IM240 Program." (2001).

Wenzel, Thomas P, and Nancy J Brown."Can More Frequent Testing Improve I/M Program Effectiveness? Analysis of the Effect of Annual Testing in the Phoenix IM240 Program." (2001).

Selkowitz, Stephen E."Integrating Advanced Façades into High Performance Buildings."Glass Processing Days: 7th International Conference on Architectural and Automotive Glass (2001).

Konopacki, Steven J, and Hashem Akbari."Measured energy savings and demand reduction from a reflective roof membrane on a large retail store in Austin." (2001).

Sherman, Max H."More Input offered on 62.2P."IAQ Applications- ASHRAE 2.3 (2001) 15.

Eto, Joseph H, Jonathan G Koomey, Bryan Lehman, Nathan C Martin, Evan Mills, Carrie A Webber, and Ernst Worrell."Scoping Study on Trends in the Economic Value of Electricity Reliability to the U.S. Economy." (2001) 148.

Friedman, Hannah, and Mary Ann Piette."Comparative Guide to Emerging Diagnostic Tools for Large Commercial HVAC Systems." (2001).

Kinney, Satkartar, Mary Ann Piette, Lixing Gu, and Philip Haves."Demand Relief and Weather Sensitivity in Large California Commercial Office Buildings."International Conference for Enhanced Building Operations (ICEBO) (2001).

Friedman, Hannah, and Mary Ann Piette."Evaluation of Emerging Diagnostic Tools for Commercial HVAC Systems."International Conference for Enhanced Building Operations (ICEBO) (2001).