CONNELLSVILLE, Pa.–(BUSINESS WIRE)– #OPTERRA–The Connellsville Area School District today announced a major infrastructure modernization project at Dunbar Township Elementary School, the district’s largest elementary school, in partnership with OPTERRA Energy Services (OPTERRA). The comprehensive project represents the first major renovation of the school in more than 55 years and takes a holistic approach to addressing the facility’s current and future needs. The District and OPTERRA developed an inte