Sun Day in DC is an inspiring collaboration of some of the best nonprofits in the climate space: ThirdAct DC, Electrify DC, Sierra Club, CCAN, Interfaith Power & Light, Washington Interfaith Network, Young Gifted and Green, with the support of DCSEU and the District Department of Energy and Environment.

The 2025 inaugural edition was made possible thanks to the generous sponsorship of ThirdAct National, Solar Solution, and Sycamore & Oak. To sponsor next year's event or to work with us email sunday@electrifydc.org.