Kentucky PSC Requests Duke Energy Kentucky Data Due May 12

COMMONWEALTH OF KENTUCKY BEFORE THE PUBLIC SERVICE COMMISSION In the Matter of:

COMMISSION STAFF'S FIRST REQUEST FOR INFORMATION

TO DUKE ENERGY KENTUCKY, INC. Duke Energy Kentucky, Inc. (Duke Kentucky), pursuant to 807 KAR 5:001, shall file with the Commission an electronic version of the following information. The information requested is due on May 12, 2026. The Commission directs Duke Kentucky to the Commission's July 22, 2021 Order in Case No. 2020-00085 regarding filings with 1 the Commission. Electronic documents shall be in portable document format (PDF), shall be searchable, and shall be appropriately bookmarked. Each response shall include the question to which the response is made and shall include the name of the witness responsible for responding to the questions related to the information provided. Each response shall be answered under oath or, for representatives of a public or private corporation or a partnership or association or a governmental agency, be accompanied by a signed certification of the preparer or the person supervising the preparation of the response on behalf of the entity that the

Case No. 2020-00085, Electronic Emergency Docket Related to the Novel Coronavirus COVID-119 (Ky. PSC July 22, 2021), Order (in which the Commission ordered that for case filings made on and after March 16, 2020, filers are NOT required to file the original physical copies of the filings required by 807 KAR ELECTRONIC APPLICATION OF DUKE ENERGY ) 5:001, Section 8).

KENTUCKY, INC. FOR A CERTIFICATE OF ) CASE NO. PUBLIC CONVENIENCE AND NECESSITY ) 2026-00086 AUTHORIZING THE PHASE FIVE ) REPLACEMENT OF THE AM07 PIPELINE )

response is true and accurate to the best of that person's knowledge, information, and

belief formed after a reasonable inquiry. Duke Kentucky shall make timely amendment to any prior response if Duke Kentucky obtains information that indicates the response was incorrect or incomplete when made or, though correct or complete when made, is now incorrect or incomplete in any material respect. For any request to which Duke Kentucky fails or refuses to furnish all or part of the requested information, Duke Kentucky shall provide a written explanation of the specific grounds for its failure to completely and precisely respond. Careful attention shall be given to copied and scanned material to ensure that it is legible. When the requested information has been previously provided in this proceeding in the requested format, reference may be made to the specific location of that information in responding to this request. When applicable, the requested information shall be separately provided for total company operations and jurisdictional operations. When filing a paper containing personal information, Duke Kentucky shall, in accordance with 807 KAR 5:001, Section 4(10), encrypt or redact the paper so that personal information cannot be read.

1. Refer to the Direct Testimony of David A. Klein (Klein Direct Testimony),
   page 3, lines 19-20. Provide the following information:

2. The actual final cost of Phases One, Two, and Three;

3. The estimated cost of Phases Four and Five; and

4. The actual or estimated mileage of each of the five phases.
   -2- Case No. 2026-00086

5. Refer to the Klein Direct Testimony, page 4, lines 4-9, which stated that
   "Duke Energy Kentucky is proposing to abandon 1.42 miles of AM07 east of the existing AM07 section that was replaced in Phase Two." Refer also to the Application, page 3,

which stated that "Phase Five of the AM07 replacement includes abandonment of 1.42 miles of the existing AM07 west of the existing AM07 section that is currently being replaced via Phase Four." Confirm whether 1.42 miles of AM07 is being abandoned east or west of the existing AM07 section and in which phase it was constructed.

1. Refer to the Klein Direct Testimony, page 4, lines 4-9. Explain the
   reasoning for abandoning 1.42 miles of AM07 replaced in a previous phase.

2. Refer to the Klein Direct Testimony, page 4, lines 12-15. Confirm whether
   Duke Kentucky has analyzed the prospect of relying entirely on public rights-of-way if private easements are not feasible and how that would impact the project.

3. Refer to the Klein Direct Testimony, page 9. Provide a detailed cost
   breakdown of each task in the second table.

4. Refer to the Klein Direct Testimony, page 10, line 9. Provide the breakdown
   of the incremental cost of $10,000 per year and explain how it is calculated.

5. Refer to the Klein Direct Testimony, page 11, lines 10-11 and page 13, lines
   5-7. Provide a detailed cost breakdown of the estimated $11 million for hydro pressure testing, and $400,000-$500,000 of typical in-line inspection (ILI).

-3- Case No. 2026-00086

________________________ Linda C. Bridwell, PE Executive Director Public Service Commission 211 Sower Blvd. Frankfort, KY 40601-8294

DATED _____________________ APR 27 2026 cc: Parties of Record

Case No. 2026-00086

Service List for 2026-00086

• Charlene Barlow Duke Energy Kentucky, Inc. 139 East Fourth Street Cincinnati, OH 45201
• Duke Energy Kentucky, Inc. 139 East Fourth Street Cincinnati, OH 45202
• Larisa Vaysman

Duke Energy Kentucky, Inc. 139 East Fourth Street Cincinnati, OH 45201

• Minna Sunderman Duke Energy Kentucky, Inc. 139 East Fourth Street Cincinnati, OH 45201
• Denotes served by Email