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    Researchers in the Building & Industrial Energy Systems Division (BIES) at Lawrence Berkeley National Laboratory work closely with industry, government and key decision makers to inform and develop building and industrial energy systems that increase energy efficiency, save money and improve health and safety for building occupants.

    The BIES Division engages in innovative and creative research to advance energy efficiency in the built environment, one of the world's most critical energy and environmental challenges because buildings are the world's largest energy-users.

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    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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    • Windows & Daylighting
    • FLEXLAB® & Systems Integration
    • Electronics, Lighting & Networks
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    • Decision Science
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    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
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Publications: Clean Energy Policy

Publications By Research Area

  • Cool Roofs & Walls
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  • EMIS
  • 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
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2025

Szum, Carolyn, Mohamed Firas Jemal, Ezzedine Khalfallah, and Stephane de la Rue du Can."Clean Energy Revolving Loan Funds: International Experience." (2025).

2024

Sawe, Nik, Hongyou Lu, Jeffrey Rissman, Zhiyu Tian, and Nan Zhou."Clean Industry in China: A Techno-Economic Comparison of Electrified Heat Technologies, Barriers, and Policy Options." (2024). DOI

2015

Ohshita, Stephanie, Lynn K Price, Nan Zhou, Nina Khanna, David Fridley, and Xu Liu."The Role of Chinese Cities in Greenhouse Gas Emissions Reduction." (2015) 19.
Zhou, Nan, Gang He, John Romankiewicz, David Fridley, and Cecilia Fino-Chen."A Review of Commercially Available Technologies for Developing Low-Carbon Eco-cities." (2015).

2013

Hong, Lixuan, Nan Zhou, David Fridley, and Chris Raczkowski."Assessment of China's Renewable Energy Contribution During the 12th Five Year Plan."Energy Policy 62 (2013) 1533-1543. DOI
Zhou, Nan, David Fridley, Michael A McNeil, Nina Khanna, Wei Feng, and Jing Ke."Quantifying the potential impact of energy efficiency and low carbon policies for China."the European Council for an Energy-Efficient Economy’s 2013 Summer Study on Energy Efficiency (2013).

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