American Transmission Systems, Incorporated Submits Amended Interconnection Agreement to Federal Energy Regulatory Commission

Strategic Insights -

Pursuant to the Federal Power Act, American Transmission Systems, Incorporated (ATSI) has submitted an amended Interconnection Agreement with FirstEnergy Pennsylvania Electric Company (FE PA) for review by the Federal Energy Regulatory Commission (FERC). The agreement, designated as Interconnection Service Agreement No. 3993, is dated September 15, 2025, and includes an agency agreement between the parties. ATSI, a wholly owned subsidiary of FirstEnergy Corp., operates transmission facilities in Ohio and western Pennsylvania, subject to the functional control of PJM Interconnection, L.L.C.

Key Takeaways:

  • ATSI submitted the amended Interconnection Agreement to FERC on October 14, 2025, for review and approval.
  • The agreement is between ATSI and FE PA, and includes an agency agreement between the parties.
  • ATSI is a wholly owned subsidiary of FirstEnergy Corp. and operates transmission facilities in Ohio and western Pennsylvania, subject to the functional control of PJM Interconnection, L.L.C.
  • The agreement was last amended in Docket No. ER25-2037 to add an additional interconnection point.
  • ATSI requests that the Commission grant an effective date of December 14, 2025, for the Interconnection Agreement.
  • The Applicant has served copies of this filing upon all other parties as may be required by the Commission.

Statistics:

  • The agreement was submitted to FERC on October 14, 2025.
  • The agreement is dated September 15, 2025.
  • The effective date requested for the Interconnection Agreement is December 14, 2025.
  • The agreement includes an agency agreement between ATSI and FE PA.
  • The agreement was last amended in Docket No. ER25-2037 to add an additional interconnection point.

Sources:

  • 18 C.F.R. Part 35 (2024)
  • 16 U.S.C. § 824d
  • October 14, 2025 Via Electronic Filing Debbie-Anne A. Reese Secretary Federal Energy Regulatory Commission 888 First Street, N.E. Washington, DC 20426
  • https://elibrary.ferc.gov