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

1989

Walker, Iain S."Single Zone Air Infiltration Modeling."Department of Mechanical Engineering (1989).

Clear, Robert D, and Sam M Berman."Speed, Accuracy, and VL."Journal of the Illuminating Engineering Society 19 (1989) 124-131.

Reilly, M. M Susan, Dariush K Arasteh, and Michael D Rubin."The Effects of Infrared Absorbing Gasses on Window Heat Transfer: A Comparison of Theory and Experiment."Solar Energy Materials 20 (1989) 277-288.

1988

Berman, Sam M, Don L Jewett, George Fein, Glenn Y Saika, and F Ashford."Photopic Luminance Does Not Always Predict Perceived Room Brightness."Lighting Research and Technology 22.1 (1988) 37-41. DOI

Klems, Joseph H."U-Values, Solar Heat Gain, and Thermal Performance: Recent Studies Using the MoWiTT."ASHRAE TransactionsASHRAE Winter Meeting: Fenestration U-Value Symposium 95, part 1 (1988).

Program, Windows and Lighting, and Florida Solar Energy Center."Commercial Building Fenestration Performance Indices Project, Phase I: Development of Methodology." (1988).

Haves, Philip, and Paul J Littlefair."Daylight in Dynamic Thermal Modelling Programs: a Case Study."Building Services Engineering Research & Technology 9.4 (1988) 183-188. DOI

Verderber, Rudolph R, Francis M Rubinstein, and Michael J Siminovitch."Control of Lamp Wall Temperature."IEEE-IAS Annual Conference (1988).

Verderber, Rudolph R, Oliver C Morse, and Francis M Rubinstein."Performance of Electronic Ballast and Controls with 34 and 40 Watt F40 Fluorescent Lamps."IEEE-IAS Annual Conference (1988).

Eto, Joseph H."On Using Degree-days to Account for the Effects of Weather on Annual Energy Use in Office Buildings."Energy and Buildings 12.2 (1988). DOI

Eto, Joseph H, and Cecile Meyer."The HVAC Costs of Fresh Air Ventilation."ASHRAE Journal (1988).

Haves, Philip, and D Trewella."Towards an Environment for HVAC Control System Evaluation."USER-1 Building Simulation Conference (1988).

Rubinstein, Francis M, Gregory J Ward, and Rudolph R Verderber."Improving the Performance of Photo-Electrically Controlled Lighting Systems."Annual IES Conference (1988).

Verderber, Rudolph R, and Michael J Siminovitch."Lighting Retrofit Considerations." (1988).

Klems, Joseph H."Measurement of Fenestration Net Energy Performance: Considerations Leading to Development of the Mobile Window Thermal Test (MoWiTT) Facility."Journal of Solar Energy Engineering 110 (1988) 208-216.

Verderber, Rudolph R."Status and Applications of New Lighting Technologies."Renewable Energy Technologies Symposium and International Exposition/The International Power Exhibition and Energy Conference (1988).

Papamichael, Konstantinos M, Joseph H Klems, and Stephen E Selkowitz."Determination and Application of Bidirectional Solar-Optical Properties of Fenestration Systems."13th National Passive Solar Conference (1988).

Reilly, M. M Susan, and Dariush K Arasteh."WINDOW 3.1: A Computer Tool for Analyzing Window Thermal Performance."13th National Passive Solar Conference (1988).

Eto, Joseph H, and Anibal T De Almeida."Saving Electricity in Commercial Buildings with Adjustable-Speed Drives."IEEE Transactions of Industry Applications 24.3 (1988). DOI

Diamond, Richard C."Building Managers: Hidden Actors in Multifamily Energy Conservation."Home Energy vol 5.no 2 (1988).

Verderber, Rudolph R, and Oliver C Morse."Performance of Electronic Ballasts and Other New Lighting Equipment (Phase II: The 34-Watt F40 Rapid Start T-12 Fluorescent Lamp)." (1988).

Layne, Linda L, Willett Kempton, Alfredo Behrens, Richard C Diamond, Margaret F Fels, and Cathy Reynolds."Design Criteria for a Consumer Energy Report: A Pilot Field Study." (1988).

Wray, Craig P, and Grenville K Yuill."Development of a Microcomputer Program for Predicting Residential Nitrogen Dioxide Concentrations."International Conference on Indoor and Ambient Air Quality (1988).

Diamond, Richard C."Enerplex Revisited: A Post-Occupancy Evaluation." (1988).

Sherman, Max H."Exegesis of Proposed ASHRAE Standard 119: Air Leakage Performance for Detached Single-Family Residential Buildings."Proceedings of the BTECC/DOE Symposium on Guidelines for Air Infiltration, Ventilation, and Moisture Transfer (D. Eakin Ed.) (1988).