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    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

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  • 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.

    Colum 1 +
    • Windows & Daylighting
    • FLEXLAB® & Systems Integration
    • Electronics, Lighting & Networks
    • Modeling & Simulation
    • Indoor Air Quality
    • High Tech & Industrial
    Colum 2 +
    • Decision Science
    • Energy Analytics
    • The Grid & Demand Response
    • Cool Roofs & Walls
    • Urban Systems
  • 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
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  • 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.

    • Whole Building
    • Occupant Behavior
    • Lighting
    • Windows and Envelope Materials
    • Cool Surfaces
    • City and Districts

Publications

Publications By Research Area

  • Cool Roofs & Walls
  • Decision Science
  • Electronics, Lighting & Networks
  • Energy & Financing
  • Energy Analytics
  • FLEXLAB® and Systems Integration
  • High Tech & Industrial
  • Indoor Air Quality
  • Modeling & Simulation
  • The Grid & Demand Response
  • Windows & Daylighting

2018

Zhou, Xin, Da Yan, Jingjing An, Tianzhen Hong, Xing Shi, and Xing Jin."Comparative Study of Air-Conditioning Energy Use of Four Office Buildings in China and USA."Energy and Buildings 169 (2018). DOI

2015

Zhou, Xin, Da Yan, Tianzhen Hong, and Xiaoxin Ren."Data Analysis and Stochastic Modeling of Lighting Energy Use in Large Office Buildings in China."Energy and Buildings 86 (2015) 275-287. DOI

2014

Hong, Tianzhen, Cheng Li, Richard C. Diamond, Da Yan, Qi Zhang, Xin Zhou, Siyue Guo, Kaiyu Sun, and Jingyi Wang."Integrated Design for High Performance Buildings." (2014).

2013

Zhou, Xin, Tianzhen Hong, and Da Yan."Comparison of Building Energy Modeling Programs: HVAC Systems." (2013).
Hong, Tianzhen, Hung-Wen Lin, Wen-Kuei Chang, Liping Wang, William J. N. Turner, Da Yan, Dandan Zhu, Xin Zhou, Chuang Wang, Chen Peng, and Xiaoxin Ren."Building Performance Simulation." (2013).
Zhou, Xin, Da Yan, Tianzhen Hong, and Dandan Zhu."Building energy modeling programs comparison Research on HVAC systems simulation part." (2013).
Zhou, Xin, Da Yan, Xiaoxin Ren, and Tianzhen Hong."Data Analysis and Modeling of Lighting Energy Use in Large Office Buildings." (2013).

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