D.C. Mayor Muriel E. Bowser hosted a press conference yesterday to sign the Renewable Portfolio Standard Expansion Act of 2016. As enacted, B21-0560 raises the renewable portfolio and solar requirements to 50% and 5% by the year 2032, respectively, and adds waste heat from combined and sanitary sewage systems and effluence from wastewater treatment to the list of Tier … Continue reading Mayor Bowser Signs D.C. RPS Bill