Join us for the 6th Annual D.C. Solar Congress! Saturday, June 1  •  9:30 a.m. – 4 p.m. R.I.S.E. Demonstration Center 2730 Martin Luther King Jr. Ave, SE, Washington, DC 20032 The D.C. Solar Congress is a free public conference that brings together solar supporters from across D.C. to learn and discuss the current state and future […]