About Fraunhofer CSE

Fraunhofer Center for Sustainable Energy Systems

A selection of images from the Fraunhofer CSE lab teams.

Building tomorrow’s energy future today


The Fraunhofer Center for Sustainable Energy Systems (CSE) is an applied research and development laboratory dedicated to building tomorrow’s energy future today. Our staff’s expertise in solar photovoltaics, smart energy-efficient buildings, and grid technologies provides a platform for deeply integrating distributed energy resources through collaborative R&D with private companies, government entities, and academic institutions.


Fraunhofer CSE is one of seven centers of Fraunhofer USA, a 501(c)(3) non-profit contract R&D organization, a subsidiary of Fraunhofer Gesellschaft, Europe's largest contract R&D organization.


Fraunhofer CSE’s Impact


Fraunhofer CSE's research drives innovation, builds business and guides policy. The center plays a unique and central role in the clean energy ecosystem, developing innovative technologies for commercialization so that people have easier access to technologies that create economic and community benefit.


Since its founding in 2008, Fraunhofer CSE has filed and licensed several patents in photovoltaic and building energy technologies, and created over 170 direct job years and hundreds of indirect jobs in the clean energy technology center. Funded by the U.S. Department of Energy SunShot Initiative, the center is currently leading a project to develop Plug-and-Play Photovoltaics for American Homes. Also funded by the SunShot Initiative and the SHINES award, Fraunhofer CSE is developing an integrated system of solar photovoltaic and energy storage with a CSE-led project called "SunDial".