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

2013

Zhou, Xin, Da Yan, Xiaoxin Ren, and Tianzhen Hong."Data Analysis and Modeling of Lighting Energy Use in Large Office Buildings." (2013).

Hong, Tianzhen, William J. N. Turner, and Cheng Li."The Two-Day CERC-BEE Forum on Building Integrated Design and Occupant Behavior: Presentations and Summary." (2013).

2012

Earni, Shankar, Spencer Woodworth, Xiufeng Pang, Jorge Hernandez-Maldonado, Rongxin Yin, Liping Wang, Steve E. Greenberg, John Fiegel, and Alma Rubalcava."Monitoring-based HVAC Commissioning of an Existing Office Building for Energy Efficiency." (2012).

Wang, Liping, Paul A. Mathew, and Xiufeng Pang."Uncertainties in energy consumption introduced by building operations and weather for a medium-size office building."Energy and Buildings 53 (2012) 152 - 158. DOI

Nouidui, Thierry Stephane, Kaustubh Phalak, Wangda Zuo, and Michael Wetter."Validation and Application of the Room Model of the Modelica Buildings Library."Proc. of the 9th International Modelica Conference (2012).

Dutton, Spencer M., Hui Zhang, Yongchao Zhai, Edward A. Arens, Youness Bennani Smires, Samuel L. Brunswick, Kyle S. Konis, and Philip Haves."Application of a stochastic window use model in EnergyPlus."SimBuild 2012, 5th National Conference of IBPSA-USA, August 1-3, 2012 (2012).

Wang, Liping, Philip Haves, and John Breshears."The Energy Saving Potential of Membrane-Based Enthalpy Recovery in VAV System for Commercial Office Buildings."SimBuild 2012 (2012).

Granderson, Jessica, and Phillip N. Price."Evaluation of the Predictive Accuracy of Five Whole-Building Baseline Models." (2012).

Pang, Xiufeng, Michael Wetter, Prajesh Bhattacharya, and Philip Haves."A framework for simulation-based real-time whole building performance assessment."Building and Environment 54 (2012) 100-108.

Wang, Liping, Philip Haves, and Walter F. Buhl."An Improved Simple Chilled Water Cooling Coil Model."SimBuild 2012 IBPSA Conference (2012).

Lin, Hung-Wen, and Tianzhen Hong."An In-Depth Analysis of Space Heating Energy Use in Office Buildings."ACEEE 2012 Summer Study (2012).

Levine, Mark D., Wei Feng, Jing Ke, Tianzhen Hong, and Nan Zhou."A Retrofit Tool for Improving Energy Efficiency of Commercial Buildings."ACEEE 2012 Summer Study (2012).

Maile, Tobias, Mangesh Basarkar, James O'Donnell, Philip Haves, and Kevin Settlemyre."Mapping Hvac Systems for Simulation In EnergyPlus."SimBuild 2012 IBPSA Conference (2012).

Nouidui, Thierry Stephane, Michael Wetter, and Wangda Zuo."Validation of the Window Model of the Modelica Buildings Library." (2012).

Zhu, Dandan, Tianzhen Hong, and Chuang Wang."Comparison of Building Energy Modeling Programs: Building Loads." (2012).

Bourassa, Norman, Leo I. Rainer, Evan Mills, and Joan Glickman."The Home Energy Scoring Tool: A Simplified Asset Rating for Single Family Homes."2012 ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Zhu, Dandan, Tianzhen Hong, Da Yan, and Chuang Wang."Comparative research in building energy modeling programs."China Annual HVACR Conference (2012).

Parker, Danny S., Evan Mills, Leo I. Rainer, Norman Bourassa, and Gregory K. Homan."Accuracy of the Home Energy Saver Energy Calculation Methodology."2012 ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Wang, Liping, Philip Haves, and John Breshears."The Energy Saving Potential of Membrane-Based Enthalpy Recovery in Vav Systems for Commercial Office Buildings."SimBuild 2012 IBPSA Conference (2012).

Chojnowski, , D, K Straub, Evan Mills, and T White."Online Communities for Creating Change: Home Energy Pros."2012 ACEEE Summer Study on Energy Efficiency in Buildings (2012).

Zuo, Wangda, Mingang Jin, and Qingyan Chen."Reduction of numerical viscosity in FFD model."Engineering Applications of Computational Fluid Mechanics 6.2 (2012) 234-247.

Jin, Mingang, Wangda Zuo, and Qingyan Chen."Validation of three dimensional fast fluid dynamics for indoor airflow simulations."the 2nd International Conference on Building Energy and Environment (COBEE2012) (2012) 1055-1062.

2011

Bazjanac, Vladimir, Tobias Maile, Cody Rose, James O'Donnell, Natasa Mrazovic, Elmer Morrissey, and Benjamin Welle."An Assessment of the use of Building Energy Performance Simulation in Early Design."IBPSA Building Simulation 2011 (2011).

Haves, Philip, Prajesh Bhattacharya, Thierry Stephane Nouidui, Michael Wetter, Zhengwei Li, and Xiufeng Pang."BacNet and Analog/Digital Interfaces of the Building Controls Virtual Testbed." (2011).

Nouidui, Thierry Stephane, Michael Wetter, Zhengwei Li, Xiufeng Pang, Prajesh Bhattacharya, and Philip Haves."BACnet and Analog/Digital Interfaces of the Building Controls Virtual Test Bed."Proc. of the 12th IBPSA Conference (2011) p. 294-301.