American Transmission Systems, Incorporated (ATSI) on Jan. 13 filed with the Ohio Power Siting Board (OPSB) an application for a certificate of environmental compatibility and public need for the East Springfield-Tangy 138-kV Loop to Broadview Substation Project to be located in north central Clark County, Ohio.
As noted in the application, ATSI, a FirstEnergy (NYSE:FE) company, plans to build a new 138-kV transmission line in Moorefield Township in Clark County, with the line connecting the East Springfield-Tangy 138-kV Transmission Line to the Broadview substation.
The East Springfield-Tangy project is one component of the Springfield Area 138-kV Reinforcement Project, which would give area customers a more robust electric transmission system by adding redundancy to the network, reducing service disruptions, and allowing for future growth when new businesses and homes are built, the company said.
The Springfield Area project is comprised of three component projects, which besides the East Springfield-Tangy project, are the:
- Clark-Urbana 138-kV Transmission Line Loop to the Broadview Substation project, which is an approximately 1.8-mile loop from the existing transmission line to the expanded substation
- Broadview Substation Expansion Project, which involves the proposed expansion and conversion of the existing Broadview distribution substation into a 138-kV substation with 69-kV transformation and the interconnection of the substation to the East Springfield-Tangy and Clark-Urbana lines
The purpose of the proposed East Springfield-Tangy project is to improve and expand transmission service to the Clark County region, and improve electric service reliability in western Ohio, ATSI added, noting that currently, electric transmission service in the immediate project area is provided by two 69-kV sub-transmission lines that extend north and south from the Broadview substation with residences and local businesses being served by smaller distribution circuits.
Further discussing the purpose of the proposed facility, ATSI said that based on the 2021 future system load forecast from the 2016 PJM Interconnection Load Forecast Report, without the project, various planning scenarios result in thermal loading on the East Springfield-Rockaway 69-kV line at 110%, and the East Springfield #6 transformer at 101% of their summer emergency ratings.
The project begins at the Broadview substation, located about one mile east of the intersection of State Route 72 and Willow Road, and continues generally east to the existing East Springfield-Tangy 138-kV line. ATSI also said that as proposed, the project is a double-circuit line supported on wood poles requiring a 60-foot-wide permanent right of way (ROW). The line would be 4.8 miles long if the preferred route is selected, and 5.3 miles long if the alternate route is selected, ATSI said.
The preferred route is identified as Route 2 (A-B-G-E-F-K-P) in a route selection study (RSS) that ATSI conducted.
Route 2 has a total of 0.4 acre of NWI wetlands within the ROW, compared to a project range of 0 to 0.4 acre, but the route would require the least amount of woodlot clearing (0.6 acre, compared to a range of 0.6 to 7 acres), ATSI said. Route 2 also has fewer residences within 1,000 feet (119, compared to a range of 118 to 308), and the fewest property owners within the ROW and within 110 feet, the company said.
The Route 2 land use score was negatively impacted by the presence along the route of land identified by the Protected Areas Database of the United States (PADUS) as being part of Buck Creek State Park owned by the Ohio Department of Natural Resources (ODNR). ATSI also said that the land use/cultural score for Route 2 was negatively impacted by the Prairie Road Fen State Nature Preserve, which is located within 1,000 feet of the proposed route.
Among other things, the company said that project construction, if approved, is anticipated to begin around May 15, 2018, and the project has an anticipated in-service date of Nov. 15, 2018.