What We Offer

What We Offer

FLEXLAB can test energy-efficient building systems in any combination


The Department of Energy's FLEXLAB® is the most flexible, comprehensive and advanced building and grid technologies test facility in the world, and is unleashing the full potential of improved energy performance.

FLEXLAB lets users test energy-efficient building systems individually or as an integrated system, under real-world conditions. FLEXLAB testbeds can monitor and assess heating, ventilation, air conditioning, lighting, windows, building envelope, control systems and plug loads — in any combination.

Users can test alternatives, validate thermal and visual comfort performance, validate design and operating tools, ensuring a building design, tool, or utility program will meet energy saving performance goals before adoption in the market. We've been experts at saving billions of dollars in buildings over the past 50 years, and FLEXLAB is the latest in Berkeley Lab’s long line of game-changing energy efficiency innovations.

We also offer a scalable platform to research a wide range of building-to-grid distributed energy resource technologies and controls for many types of grid applications. Users can test models and assumptions with real systems, test alternative methods and collect highly accurate, validated performance data for use in building design, utility customer incentive programs, new technology development, evaluation and operations software development. 

Download the FLEXLAB One-Pager: FLEXLAB One-Pager