Great Erie Federal Credit Union (formerly known as OPCS Federal Credit Union) has been open since 1952. The credit union has assets totaling $95.35 Million and provides banking services to more than 8,000 members. Membership: The credit union is a community-based financial institution. People living, working, or worshipping in the credit union's geographic area can become a member and access banking services. Membership is also open to immediate family of current members.