Concentrating solar-thermal power (CSP) technologies can be used to generate electricity by converting energy from sunlight to power a turbine, but the same basic technologies can also be used to deliver heat to a variety of industrial applications, like water desalination, enhanced oil recovery, food processing, chemical production, and mineral processing. Learn more about how CSP works.

2030 CSP Goals

The U.S. Department of Energy Solar Energy Technologies Office (SETO) supports CSP research and development projects that work to improve the performance, reduce the cost, and improve the lifetime and reliability of materials, components, subsystems, and integrated solutions for CSP technologies. In the past decade, the cost of electricity produced by CSP has dropped more than 50 percent thanks to more efficient systems and the wider use of thermal energy storage, which allows solar energy to be dispatchable around the clock and increase the time each day that a solar power plant can generate energy. SETO is working to make CSP even more affordable, with the goal of reaching $0.05 per kilowatt-hour for baseload plants with at least 12 hours of thermal energy storage.

In September 2021, DOE released the Solar Futures Study, a report that explores the role of solar energy in achieving these goals as part of a decarbonized U.S. electric grid. Learn more about SETO’s goals here.

In October 2021, Sandia National Laboratories (SNL) published a DOE-funded publicly accessible digital CSP archive. SNL solar researchers and librarians collected, digitized, and cataloged a host of historical CSP research documents, including reports, memos, blueprints, photos, and more. Sharing this information can help make the technology more accessible and the path to commercialization faster by preventing new researchers and companies from having to reinvent the wheel.

Within SETO’s CSP research area, efforts are focused on five major topics. Learn more about them below.

Research Topics

SETO funding for CSP research is awarded to projects that substantially advance, develop, or engineer new concepts in the collector, receiver, thermal storage, heat transfer media, and power cycle subsystems, including technologies that will lower operations and management costs. This includes transformative concepts with the potential to break through existing cost and performance barriers. Projects are managed by the CSP team and executed with the goal of developing technologies that are commercially relevant for the U.S. energy sector. Learn more about SETO’s funding programs and current funding opportunities.

CSP Success Stories

Workshops & Events