Pepco Holdings, an energy delivery company, has appointed Russell Frisby to its board of directors.

Frisby currently serves as partner at law firm Stinson Morrison Hecker in the energy and telecommunications group, where he is responsible for regulatory matters affecting public utilities and companies in the energy, communications and technology areas.

Before joining Stinson Morrison Hecker in 2008, Frisby served as partner with law firms Fleischman & Harding and Kilpatrick & Lockhart Nicholson Graham. He has also served as president and chief executive officer of the Competitive Telecommunications Association and chairman of the Maryland Public Service Commission.