Going Underground Published Feb. 4, 2011 By Staff Sgt. Roberto Modelo 911 AW/PA PITTSBURGH IAP ARS -- Mr. George Walse, a contractor with Penn-Ohio Electrical, digs a hole to expose an area that is planned to be used to connect underground electrical pipes to a new transformer here, Feb. 2. The work is part of a larger effort to convert the outside base electrical grid from above to below ground.