Skip to main content
Home
  • 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

    • Access, Directions
    • Division Structure
    • Our Websites
    • Partners
    • Staff
    • Testing Capabilities
    • Art Rosenfeld
    • Join Our Mailing List
    • Resources
  • 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
  • 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.

    • 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
X Author: Barry Hooper

2023

Hong, Tianzhen, Sang Hoon Lee, Wanni Zhang, Kaiyu Sun, Barry Hooper, and Janghyun Kim."Nexus of electrification and energy efficiency retrofit of commercial buildings at the district scale."Sustainable Cities and Society 95 (2023) 104608. DOI

2022

Sun, Kaiyu, Tianzhen Hong, Janghyun Kim, and Barry Hooper."Application and evaluation of a pattern-based building energy model calibration method using public building datasets."Building Simulation 15.8 (2022) 1385 - 1400. DOI

2021

Hong, Tianzhen, Yujie Xu, Kaiyu Sun, Wanni Zhang, Xuan Luo, and Barry Hooper."Urban microclimate and its impact on building performance: A case study of San Francisco."Urban Climate 38 (2021) 100871. DOI

2019

Chen, Yixing, Tianzhen Hong, Xuan Luo, and Barry Hooper."Development of city buildings dataset for urban building energy modeling."Energy and Buildings 183 (2019) 252 - 265. DOI

U.S Department of Energy   UC Berkeley

©2025 Energy Technologies Area, Berkeley Lab

OUR ORGANIZATION

  • Lawrence Berkeley National Laboratory
  • Energy Technologies Area
  • Join Our Mailing List
  • Privacy and Security Notice