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

1991

Ward, Gregory J.."Adaptive Shadow Testing for Ray Tracing."1991 European Rendering Workshop Conference (1991).

Furler, Reto A.."Angular Dependence of Optical Properties of Homogeneous Glasses."ASHRAE Transactions 98, Part 1 (1991).

Wray, Craig P.."Computer Simulation of the Transport of Soil Gas, Indoor Air, and Atmospheric Air into Subslab Venting Systems."Report to the Canada Mortgage and Housing Corporation (1991).

Siminovitch, Michael J., and Niela M. Kleinsmith."Convective Venting in Compact Fluorescent Fixtures." (1991).

Berman, Sam M.."Energy Efficiency Consequences of Scotopic Sensitivity."Journal of the Illuminating Engineering Society 21 (1991).

Heerwagen, Judith H., J. Loveland, and Richard C. Diamond."Environmental Satisfaction, Coping, and Health Outcomes in the Office Habitat."1991 International Solar Energy Society Conference (1991).

Piette, Mary Ann, Jeffrey P. Harris, Richard C. Diamond, Bruce Nordman, Odon D. Buen, and Bruce Cody."Evaluating Savings from Design Predictions through Measured Performance in New, Energy-Efficient Commercial Buildings."5th International Energy Program Evaluation Conference (1991).

Forest, Tom W., and Iain S. Walker."Field Study on Attic Ventilation and Moisture."CANCAM '91, (1991).

Verderber, Rudolph R., Oliver C. Morse, and William R. Alling."Harmonics from Compact Fluorescent Lamps."Annual IEEE-IAS Conference (1991).

Taha, Haider, Hashem Akbari, and Arthur H. Rosenfeld."Heat island and oasis effects of vegetative canopies: micro-meteorological field-measurements."Theoretical and Applied Climatology 44 (1991) 123-138. DOI

Ross, Jennifer T., and Michael D. Rubin."High Quality GaN Grown by Reactive Sputtering."Mater. Lett 12 (1991) 215.

Lampert, Carl M."Large-Area Chromogenics for Smart Windows."IEEE Circuits and Devices Magazine (1991).

Forest, Tom W., Iain S. Walker, and Kerry Checkwitch."Moisture Accumulation in a Building Envelope - Final Report - The AHHRF 1989-1990 Heating Season."Report #80 (1991).

Wilson, David J., and Iain S. Walker."Passive Ventilation to Maintain Indoor Air Quality."Report # 81 (1991).

Wray, Craig P., and G.K. Yuill and Associates Ltd.."Preliminary Investigation Concerning the Impact of Subslab Ventilation on Radon Entry Rate, Soil Temperature, and Energy Consumption, 1991." (1991).

Hitchcock, Robert J., William L. Carroll, and Bruce E. Birdsall."RESEM: Retrofit Energy Savings Estimation Model Reference Manual - Version 1.00." (1991).

Sullivan, Robert, B. Chin, Dariush K. Arasteh, and Stephen E. Selkowitz."RESFEN: A Residential Fenestration Performance Design."ASHRAE Transactions 97, Part 2 (1991).

Ling, Keck-Voon, Arthur L. Dexter, G. Geng, and Philip Haves."Self-tuning Control with Fuzzy Rule-Based Supervision for HVAC Applications."ITAC 91 (1991).

Yuill, Grenville K., Marc R. Jeanson, and Craig P. Wray."Simulated Performance of Demand-Controlled Ventilation Systems using Carbon Dioxide as an Occupancy Indicator."ASHRAE Transactions 97.Part 2 (1991) 963-968.

Haves, Philip, Arthur L. Dexter, D.R. Jorgensen, Keck-Voon Ling, and G. Geng."Use of a Building Emulator to Develop Techniques for Improved Commissioning and Control of HVAC Systems."ASHRAE Transactions 97.1 (1991).

Arasteh, Dariush K., Fredric A. Beck, Brent T. Griffith, Manuel Acevedo-Ruiz, and Nan Byars."Using Infrared Thermography for the Study of Heat Transfer Through Building Envelope Components."ASHRAE Transactions 98, part 1 (1991).

Raasch, Thomas W., Ian L. Bailey, Peter A. Howarth, Daniel S. Greenhouse, and Sam M. Berman."Visual Performance at Video Display Terminals--Effects of Screen Color and Illuminant Type."Journal of Optometry and Vision Science 68 (1991) 924-929.

Wilson, David J., and Iain S. Walker."Wind Shelter Effects for a Row of Houses."12th AIVC Conference 1 (1991) 335-346.

1990

Siminovitch, Michael J., Francis M. Rubinstein, and Michael Packer."Thermally Efficient Compact Fluorescent Fixture Systems."IEA/ENEL Conference on Advanced Technologies for Electric Demand-Side Management (1990).

Dexter, Arthur L., and Philip Haves."The Influence of Tuning on the Performance of a Building Control System."System Simulation in Buildings '90 (1990).