Adams Electric Cooperative, Inc. is a not for profit electric cooperative providing electric service to over 32,000 members i ... n five counties is south central Pennsylvania, including Adams, Cumberland, Franklin, Perry and York. Formed in 1940, the cooperative is consumer owned. The cooperative is headquartered in historic Gettysburg, PA with district offices in Gettysburg, Shippensburg and York. Member-owned and member driven, the cooperative focuses on the membership and local community. We are the People Behind the Power. read more