Morgan Transmission Line
Separation Project
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Transmission Investments
As part of our continuous assessment of the electric system, we've identified the need to relocate an existing 138-kilovolt (kV) transmission line and its associated infrastructure near our Morgan Substation at 6201 Dry Fork Road in Hamilton County.
Project Need
Two 138-kV transmission lines presently serve the Morgan Substation from the east for approximately one mile. The two high-powered lines are located in the same transmission corridor and are attached to the same structures. This project will improve reliability by relocating one of the transmission lines to a separate corridor and modifying the lines outside Morgan Substation to connect to a new ring bus (a power distribution system) that will be located on the south side of the substation.By separating the electric power lines and placing them in their own transmission corridors, this project will improve electric service reliability by providing an additional option for routing power in the event that other transmission lines are damaged or require routine maintenance. This should lead to reduced power outages and restoration times. A siting study to determine the line route was conducted in 2017.
Project Description
The project has been broken into three phases. Phase one modified one of the 138-kV lines outside Morgan Substation. This work involved the installation of three new steel pole locations and the equipment to reconfigure the substation. This portion of the project was completed in December 2018.
Additional construction in spring 2020 involved work inside the substation for relocating the other 138-kV transmission line.
Phase three of construction in 2021 will involve reconfiguring the second 138-kV transmission line outside Morgan Substation. This phase of the project also will require moving the existing wires to a structure inside the substation.
The relocation equipment includes 7 self-supporting steel poles and approximately 6,000 feet of new transmission line conductor. The poles range in height from 110 to 180 feet. The project also includes work on a steel lattice tower to the east of the substation. Duke Energy Ohio, Inc. is proposing the construction of this portion of the project to begin February 2021 and to be completed by December 2021.
An application to construct, operate and maintain this electric transmission line project is now pending before the Ohio Power Siting Board (OPSB) in Columbus, Ohio.
Benefits to the Community
- Improves electrical system reliability
- Maintains a robust system for supplying and delivering energy, which is integral to ensuring the continued economic growth and prosperity of the city
- Improves power quality and reliability for decades to come by strengthening the energy grid
Engagement
Community engagement allows us to receive input and to share information about this project.- Property owners received an announcement of the preferred route of the transmission line in a communication dated April 17, 2017.
- Property owners received a postcard update on the project in April 2018.
- Property owners received a letter dated Dec. 17, 2020 about the 2021 construction.