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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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    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
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    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.

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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.

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Publications: Solar Control:Between-Pane Shading

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
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2014

Fernandes, Luis L, Eleanor S Lee, Andrew McNeil, Jacob C Jonsson, Thierry Stephane Nouidui, Xiufeng Pang, and Sabine Hoffmann."Angular selective window systems: Assessment of technical potential for energy saving." (2014) 36.

2012

Appelfeld, David, Andrew McNeil, and Svend Svendsen."An Hourly-Based Performance Comparison of an Integrated Micro-Structural Perforated Shading Screen with Standard Shading Systems."Energy and Buildings 50.July 2012 (2012). DOI

2002

Lee, Eleanor S, Stephen E Selkowitz, Christian Kohler, Vladimir Bazjanac, and Vorapat Inkarojrit."High-Performance Commercial Building Façades." (2002).

1998

Sullivan, Robert, Liliana O Beltran, Eleanor S Lee, Michael D Rubin, and Stephen E Selkowitz."Energy and Daylight Performance of Angular Selective Glazings."ASHRAE/DOE/BTECC Conference, Thermal Performance of the Exterior Envelopes of Buildings VII (1998).

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