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Lawrence Berkeley National Lab

About Lawrence Berkeley National Laboratory

Managed by the University of California, Lawrence Berkeley National Laboratory conducts unclassified research across a wide range of scientific disciplines. Berkeley Lab's energy efficiency innovations have contributed more than $484B to the U.S. economy and we are delighted to partner with small businesses to solve some of their most pressing challenges across the areas of buildings, bio-energy, advanced manufacturing, vehicles, fuel cells and geothermal research and technologies. Strategically located in the Bay Area ecosystem of innovation, Berkeley Lab creates 12,000 jobs and contributed $1.6B to the US economy annually.


Berkeley Lab’s history of buildings research and development reaches back to its pioneering building energy efficiency work, and includes now-commonplace inventions such as electronic ballasts and low-e window coatings. Today, Berkeley Lab’s vision encompasses dynamic and integrated buildings systems and the ability to test and evaluate that integration in its FLEXLAB facility. This whole-building, multi-system approach strives to fundamentally fuel a revolution in the built environment, to achieve a 50% energy reduction in buildings by 2025.

Berkeley Lab works with utilities, owners, operators, designers, contractors, and manufacturers to achieve these goals and speed market transformation through the advancement of the following:

  • Measurement, Data-Driven and Simulation Modeling and Optimization
  • Data Management, Owner and Operator Decision Tools, Information Systems and Analytics
  • Integrated System Design and Dynamic Control Solutions
  • Interoperability and Building Integration with the Grid and Urban Systems
  • Real-Time Energy Management, Feedback, and Performance Visibility
  • Performance Validation of New and Emerging Technologies and Systems
  • Demand Response, Distributed Generation, Load Flexibility, and Storage

Unique Capabilities

  • Integrated systems evaluations through RD&D at FLEXLAB
  • Lighting measurement
  • Evaluation of advanced window technologies
  • Window glazing and shading material performance measurement and demonstrations
  • Material characterization
  • Thermography and heat transfer evaluations
  • Thin film development
  • High performance computing
  • Performance validation, technology enhancement, and field testing

Expertise and Techniques

Our expertise and techniques are categorized into eight primary groups:


Integrated Building Systems

Advanced Windows Test Facility

Thermography and Heat Transfer

Thin Film and Deposition Systems

  • Coating Lab
  • Plasma Applications Coating Lab
  • Solar Control Thin Films Laboratory

Berkeley Lab also houses and operates the following User Facilities for the U.S. Department of Energy.

Tools and Instruments

Whole-Building Evaluations


  • Radiance and Desktop Radiance
  • Gonio-Photometer, measure illuminance from each portion of a lamp or fixture
  • Spectro Radiometer, measure light output of a light source at each wavelength
  • Integrating Sphere, quickly and accurately measure a lamp’s total light output

Windows and Envelope Materials

  • COMFEN, to analyze and optimize facade options
  • Optics, to calculate glazing systems’ optical properties
  • RESFEN, to help select energy-efficient and cost-effective windows
  • THERM, to model two-dimensional heat-transfer effects in building components
  • WINDOW, to calculate performance of window and shading systems
  • Photo-Goniometer, to measure light transmission and reflection of light-emitting, light-scattering, and light-redirecting materials
  • Spectro Goniometer, to measure angle-resolved scattering versus wavelength
  • Dektak 150 Surface Profiler, to measure thin-film thickness and deposition rates
  • Pelletron, an electrostatic ion accelerator for ion beam analysis of materials

Demand-Side Management