AEP Ohio Transmission Company (AEP Ohio Transco), in a recently filed application with the Ohio Power Siting Board (OPSB) for a certificate of environmental compatibility and public need, said that it plans to build a new 138-kV electric transmission line from the proposed Lamping substation southeast to the proposed Rouse substation in Monroe County, Ohio.
The Lamping to Rouse 138 kV Transmission Line Project – which is located in southwestern Monroe County, about 33 miles north of Marietta, Ohio – is one component of the overall Southeast Ohio Area Improvements Program (program) that aims to improve local service for customers, decrease power interruptions, and speed recovery of local service when outages occur, the company said.
Much of the area is served by an extensive 23-kV distribution system, which would be retired and replaced with a new 138-kV transmission system, the company said.
The project would provide a new 138-kV circuit between AEP Ohio Transco’s future Lamping 345/138-kV substation and Washington Electric Cooperative’s future Rouse substation, the company said. The project would establish a 138-kV transmission pathway to Washington Electric Cooperative’s future Rouse delivery point, serving the co-op’s customers, and the line would serve as the initial leg of the future Lamping-Rouse-Bell Ridge-Devola 138-kV circuit, which would provide a new transmission source to the Marietta area.
The new transmission line would be the first part of the overall program, and would provide two-way transmission service to Washington Electric Cooperative’s delivery points, significantly improving service reliability to area customers, AEP Ohio Transco added.
The proposed project begins about 2.10 miles southwest of Graysville, Ohio, at the proposed site of the Lamping substation, located about 1,200 feet south of the intersection of County Roads 13 and 826 and extends generally southeast. The company also said that the proposed project terminates about 1.5 miles northwest of Rinard Mills, Ohio, at the proposed site of the Rouse substation, located immediately south of the intersection of State Route 26 and Pleasant Ridge Road.
The proposed project would be about 4.7 to 4.8 miles long, depending on the route selected, would be built using primarily steel monopoles, and would require a new 100-foot-wide permanent right of way (ROW).
The company further stated that the entirety of the preferred route from the proposed Lamping substation to the proposed Rouse substation is about 4.8 miles long and uses existing utility lines for about 70% of its length. That route has the second most favorable ecological score with the least amount of proposed woodlot clearing and no threatened and endangered species records near the alignment. The company also said that that route has the third most favorable land use score with no residences within 100 feet, no Ohio Historical Inventory structures within 1,000 feet, and does not cross Wayne National Forest land.
Among other things, the company said that, if the project is approved, tree clearing and transmission line construction would take place in 2018, and the project would be completed in 2019.
AEP Ohio Transco is a transmission-only affiliate of AEP Ohio/Ohio Power Company, and is a unit of American Electric Power (NYSE:AEP).