Mary Anne Piette, a brown-haired person wearing a white collared shirt, smiles for a headshot against a dark background. The sun obscured behind smokey skies over a blue building.

A testing facility for energy-efficient building technologies.

Three people in safety gear standing in front of a truck.

Researching programs and market incentives advancing a cleaner, affordable, and reliable grid.

Smart city and dot point connect Modern Telecom System.

Researchers team with the Department of Energy (DOE) to provide resources with the goal of connected communities that collectively maximize building, community, and grid performance.


Berkeley Lab’s research related to energy-efficient appliance standards has saved consumers millions of dollars in the U.S. and worldwide.

Panoramic view of San Francisco skyline at sunrise.

Berkeley Lab researches the development and implementation of GEB modeling tools.

Blurred car lights on a highway.

Researchers are working closely with industry, cities, national laboratories, UC Berkeley, and other research institutions to develop robust solutions to critical transportation issues.

Upward view of a high-performance window system with sun shining in the background.

Berkeley Lab’s advanced technologies and software tools are the world standard in increasing the energy efficiency of windows and buildings.

Upward view of a building with a colorful overlay.

Researchers are developing critical performance monitoring tools, providing energy and facility managers with new analysis and visualization capabilities.

New York skyline against a sunset.

Berkeley Lab is developing data and technologies that increase energy efficiency and improve the health, safety, and comfort of building occupants in the U.S. and worldwide.

Aerial view of white roofed homes and streets forming circular patterns.

Researchers are developing new strategies to cool buildings, cities, and the planet by making roofs, pavements, and cars cooler in the sun.

A hand plugs in a charging cable in an electric car.

Researchers are analyzing why and when some people adopt certain technologies, such as electric vehicles, ride-sharing, and ride-hailing, while others don’t.

Interior view of an energy management laboratory with yellow and grey machinery.

This team develops and deploys evidence-based energy management solutions to help organizations achieve their energy-related objectives.

Energy meters lined up in a row.

This group conducts unbiased research, analysis, and technical assistance on energy-efficiency markets and policies.

Digital rendering of an outstretch arm holding a softball-sized Earth with splashing water around the frame

Working to better understand cooling systems to meet cooling needs affordably and in harmony with the planet.

Boy and girl raising their hands while sitting in the class at elementary school.

Engaging with schools to improve energy performance and indoor air quality and reduce carbon emissions. Berkeley Lab provides technical support for this Department of Energy campaign.

Tianzhen Hong, a person with short black hair wearing a light collared shirt, photographed against a yellow background.

"We are developing and applying novel building performance modeling and simulation methods and tools to support the design and operation of low-energy, carbon-neutral, and climate resilient buildings across scales, integrating technological solutions, human behavioral strategies, and policy."

C. Anna Spurlock, a person with short curly brown hair wearing glasses and a gray blazer over a black top, photographed against a light gray background.

C. Anna Spurlock is a research scientist and a deputy department head in the Sustainable Energy and Environmental Systems Department. Anna has a leadership role in the Sustainable Transportation Initiative and also leads the Economics Research sub-team within the Energy Efficiency Standards Department.

Ronnen Levinson, a person with short dark hair wearing a navy shirt, photographed against a dark copper background.

Ronnen Levinson is a staff scientist and leader of the Heat Island Group at Berkeley Lab. Within his research portfolio he develops cool roof, wall, and pavement materials; improves methods for the measurement of solar reflectance; and quantifies the energy and environmental benefits of cool surfaces.

Artistic representation of a smart house

What might the cleaner, greener houses and apartments of 2050 look like if they take advantage of new technologies? Berkeley Lab energy technology researchers gave a glimpse into what a home built in 2050 might look like.

Art Rosenfeld, a physicist and Berkeley Lab Distinguished Scientist Emeritus, transformed the fledgling field of energy efficiency from a research afterthought into a scientific discipline.

Berkeley Lab scientists discuss how advances in energy storage can help us prevent extreme weather-related blackouts, adopt more renewable energy, and build bigger, better, more environmentally responsible batteries.

Exterior of a school building. Aerial photograph of the FLEXLAB complex Orange hued city Evening traffic in downtown Los Angeles. Oil refinery at night. View of highway at sunrise with a semi coming toward the viewer.