July 7, 2014
FirstEnergy Corp. (NYSE: FE) has completed a new transmission line and substation in Armstrong County, Pennsylvania, to help enhance service reliability for West Penn Power customers in Allegheny, Armstrong, Butler and Westmoreland counties.
"These infrastructure investments in Armstrong County will help us continue to provide reliable service to our customers," said David W. McDonald, president of West Penn Power. "In addition to benefitting West Penn Power customers, this project also will help enhance the regional transmission system."
As part of the $31 million project, a new 345-kilovolt (kV) substation was constructed next to FirstEnergy's deactivated Armstrong Power Plant. The major component of the construction process was the installation of a large transformer that converts the power from 345-kV to 138-kV as it moves along the transmission system. In addition, a new control room was built to house transmission controls that were previously located at the Armstrong Plant. Construction work also included adding four new circuit breakers to the existing substation located on plant property that will remain in operation.
The project also included a new 1.6-mile section of 345-kV transmission line connecting the new substation with an existing transmission line running between Homer City and Handsome Lake. The new line was installed on 15 steel monopole structures. The new substation equipment and line are owned by Trans-Allegheny Interstate Line Company, a FirstEnergy transmission affiliate.
The new substation and transmission line were authorized by PJM Interconnection, LLC (PJM). PJM, a Federal Energy Regulatory Commission-approved Regional Transmission Organization, is responsible for ensuring the reliability of the electric transmission system and coordinates the movement of wholesale electricity in all or part of 13 states and the District of Columbia.
West Penn Power serves about 720,000 customers in 24 Pennsylvania counties. Follow West Penn Power on Twitter @W_Penn_Power.
FirstEnergy is a diversified energy company dedicated to safety, reliability and operational excellence. Its 10 electric distribution companies form one of the nation's largest investor-owned electric systems, serving customers in Ohio, Pennsylvania, New Jersey, West Virginia, Maryland and New York. Follow FirstEnergy on Twitter @FirstEnergyCorp.
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