Hawthorne Substation Expansion Project (OPSB Case No. 25-0876-EL-BLN)

In this Project, ATSI is proposing to expand the existing Hawthorne Substation to expand the existing Hawthorne 138 kV Substation to convert the existing substation into a ring bus substation configuration. The substation will expand from its existing square footage of approximately 15,624 square feet to approximately 27,526 square feet. This expansion represents an approximate 76 percent increase in square footage. As part of the Project, the existing Angola-Midway 138 kV Transmission Line will be re-terminated inside the reconfigured Hawthorne Substation. This will create the Angola-Hawthorne 138 kV Transmission Line and Hawthorne-Midway 138 kV Transmission Line. The existing structures outside of the Hawthorne Substation will remain, and new conductors will be strung from the existing structure immediately outside of Hawthorn Substation to the new substation take-off structures. The Project is in the city of Toledo, Lucas County, Ohio.

Project Documents

• Letter of Notification filed with the Ohio Power Siting Board

A paper copy of the application can be supplied within five business days upon request at no more than the cost of printing and shipping. Request for a paper copy can be made by contacting the transmission project hotline at 1-888-311-4737 or by email. Please reference the project name and case number (25-0876-EL-BLN) in all communications.