Solar Energy Technologies Office

Different types of solar panels installed on all the roofs of a new residential community in rural Massachusetts.

The U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO) accelerates the advancement and deployment of solar technology in support of an equitable transition to a decarbonized economy. Learn more about the office's work at our events and webinars.

Learn how the Inflation Reduction Act could help you save on solar and review our federal solar tax credit resources.

Areas of Focus

  • Jack's Solar Garden, a community solar agrivoltaics site in Colorado.

    Funding Opportunities

    The U.S. Department of Energy (DOE) Solar Energy Technologies Office (SETO) supports funding opportunities across its research areas. Following an open, competitive solicitation process, these funding opportunities encourage collaborative partnerships among industry, universities, national laboratories, federal, state, and local governments and non-government agencies and advocacy groups. Solicitations may include financial or technical assistance. Learn more about how to apply for a funding opportunity

  • Four images of buildings with rooftop solar panels

    How Does Solar Work?

    The amount of sunlight that strikes the earth's surface in an hour and a half is enough to handle the entire world's energy consumption for a full year. Solar technologies convert sunlight into electrical energy either through photovoltaic (PV) panels or through mirrors that concentrate solar radiation. This energy can be used to generate electricity or be stored in batteries or thermal storage.

  • A woman works on a solar panel.

    Solar Energy Resources

    The U.S. Department of Energy Solar Energy Technologies Office (SETO) has developed online resources to help those who want to go solar or who work with solar energy. From someone who’s looking to add solar to their roof, to someone whose job requires them to understand solar, these web resources will help everyone understand solar energy.

Research Areas

SETO Solar Energy Research Database Map Image

Solar Energy Research Database

Learn more about active SETO-funded projects at national laboratories, state and local governments, universities, nonprofit organizations, and private companies. See active projects in the map and database table—you can sort the projects by program area, funding opportunity, state, and more.

A series of solar arrays on an affordable multifamily housing development in Allston, a neighborhood of Boston, MA.

Connect the Dots on Solar Energy

Every day, Americans are making the choice to power their lives with solar energy. SETO is connecting the dots for you, demonstrating how solar energy investments accrue over years to benefit individuals, communities, and the nation.

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