Kentucky Public Service Commission

Duke Energy Kentucky, Inc. hereby submits the Rebuttal Testimony of Bruce L. Sailers

Deborah L Gates Larisa Vaysman

Duke Energy Kentucky Inc.s Responses to Staffs Fourth Request for Information

Deborah L Gates Larisa Vaysman

Motion for Leave to File Corrected Responses of Joint Intervenors to Request for Information from Duke Energy Kentucky, Inc.

Byron L. Gary Joint Intervenors

Responses to First Request for Information From Duke Energy Kentucky, Inc.

Byron L. Gary Joint Intervenors

Duke Energy Kentucky, Inc.s Unopposed Motion to Modify the May 15, 2024 Hearing Date

Minna Sunderman Larisa Vaysman

Multiple Public Comments

Order Entered: 1. A hearing in this matter shall be held on May 15, 2024, at 9 a.m. Eastern Daylight Time and continuing until called from the bench by the presiding officer, in the Richard Raff Hearing Room at the offices of the Public Service Commission at 211 Sower Boulevard, Frankfort, Kentucky. 2. Pursuant to 807 KAR 5:001, Section 2, if the hearing is not concluded on the designated day, the hearing may be continued upon verbal announcement by the presiding officer. A verbal announcement made by the presiding officer shall be proper notice of the continued hearing. 3. Witnesses who sponsor schedules, testimony, or responses to requests for information shall participate in person at the May 15, 2024 hearing. 4. Duke Energy Kentucky, Inc. (Duke Kentucky) shall give notice of the hearing in compliance with 807 KAR 5:001, Section 9(2)(b). In addition, the notice of hearing shall include the following statements: “This hearing will be streamed live and may be viewed on the PSC website, psc.ky.gov” and “Public comments may be made at the beginning of the hearing. Those wishing to make oral public comments may do so by following the instructions listed on the PSC website, psc.ky.gov.” At the time the notice is mailed or publication is requested, Duke Kentucky shall forward a duplicate of the notice and request to the Commission. 5. Duke Kentucky shall file a witness list seven days prior to the hearing date.

Data Request

DEKs Initial Discovery to Kentucky Solar Energy Society and Kentuckians for the Commonwealth

Debbie Gates Duke Energy Kentucky, Inc.

DEK, Inc. submits its responses to Staffs 3rd Request for Information

Debbie Gates Duke Energy Kentucky, Inc.

Direct Testimony of Richard Mccann, Ph.D on Behalf of Joint Intervenors

Byron L. Gary Joint Intervenors

Data Request

Duke Energy Kentuckys Responses to KSESs Second Set of Data Requests

Emily Olive Larisa Vaysman

Duke Energy Kentucky, Inc.s Responses to KYSEIAs Second Set of Data Requests

Emily Olive Larisa Vaysman

Duke Energy Kentuckys Responses to Staffs 2nd Set of Data Requests

Emily A. Olive Larisa M. Vaysman

Supplemental Requests for Information

Byron L. Gary Joint Intervenors

KYSEIA Supplemental Requests for Information

David Spenard Kentucky Solar Industries Association, Inc.

Data Request

20240212_PSC Letter Regarding Services of Strategen Consulting, LLC.pdf

Duke Energy Kentucky, Inc.s Customer Notice Publications

Minna Sunderman Duke Energy Kentucky, Inc.

Duke Energy Kentucky Inc. hereby submits AG-DR-01-001 Attachment which was mistakenly not included.

Deborah Gates Larisa Vaysman

Duke Energy Kentucky, Inc.s Responses to Kentucky Solar Energy Society and Kentuckians for the Commonwealths First Request for Information

Minna Sunderman Larisa M. Vaysman

Duke Energy Kentucky, Inc.s Response to KYSEIAs 1st set of request for information

Deborah Gates Larisa Vaysman

Duke Energy Kentucky, Inc.s Response to AGs 1st Set of Request for Information

Deborah Gates Larisa Vaysman

Duke Energy Kentucky, Inc.s Responses to Commission Staffs First Request for Information

Minna Sunderman Larisa M. Vaysman

Written Statement Regarding Receipt of Electronic Transmissions

Byron L. Gary Joint Intervenors

Order Entered: 1. Joint Intervenors’ motion to intervene is granted. 2. Joint Intervenors are entitled to the full rights of a party and shall be served with the Commission’s Orders and with filed testimony, exhibits, pleadings, correspondence, and all other documents submitted by parties after the date of this Order. 3. Joint Intervenors shall comply with all provisions of the Commission’s regulations, 807 KAR 5:001, Section 8, related to the service and electronic filing of documents. 4. Joint Intervenors shall adhere to the procedural schedule set forth in the Commission’s January 5, 2024 Order and as amended by subsequent Orders. 5. Pursuant to 807 KAR 5:001, Section 8(9), within seven days of service of this Order, Joint Intervenors shall file a written statement with the Commission that: a. Certifies that it, or its agent, possesses the facilities to receive electronic transmissions; and b. Sets forth the electronic mail address to which all electronic notices and messages related to this proceeding shall be served.

Tendered First Set of Requests to Duke Energy Kentucky, Inc. for Information from Joint Movants for Joint Intervention

Byron L. Gary Movants for Joint Intervention

Data Request

KYSEIA Initial Requests for Information to Duke

David Spenard Kentucky Solar Industries Association, Inc.

OAG Data Requests to DEK

J. Michael West Office of the Kentucky Attorney General

Joint Motion for Full Intervention as Joint Intervenors

Byron L. Gary Kentucky Solar Energy Society and Kentuckians for the Commonwealth

KYSEIA Written Statement

David Spenard KYSEIA

Order Entered: 1. KYSEIA’s motion to intervene is granted. 2. KYSEIA is entitled to the full rights of a party and shall be served with the Commission’s Orders and with filed testimony, exhibits, pleadings, correspondence, and all other documents submitted by parties after the date of this Order. 3. KYSEIA shall comply with all provisions of the Commission’s regulations, 807 KAR 5:001, Section 8, related to the service and electronic filing of documents. 4. KYSEIA shall adhere to the procedural schedule set forth in the Commission’s January 5, 2024 Order and as amended by subsequent Orders. 5. Pursuant to 807 KAR 5:001, Section 8(9), within seven days of service of this Order, KYSEIA shall file a written statement with the Commission that: a. Certifies that it, or its agent, possesses the facilities to receive electronic transmissions; and b. Sets forth the electronic mail address to which all electronic notices and messages related to this proceeding shall be served.

Duke Energy Kentucky, Inc.s Notice of Appearance and Written Statement

Minna Sunderman Larisa M. Vaysman

Order Entered: 1. This proceeding is established to investigate the reasonableness of the proposed tariff. 2. Duke Kentucky’s proposed tariff is suspended for five months from January 19, 2024, up to and including June 18, 2024. 3. The record in Case No. 2019-00256 is incorporated by reference into this matter. 4. Duke Kentucky shall, by counsel, enter an appearance in this proceeding within seven days of the date of service of this Order. The entry of appearance shall include the name, address, telephone number, fax number, and electronic mail address of counsel. 5. Unless otherwise ordered by the Commission, the procedures set forth in 807 KAR 5:001, Section 8, related to service and electronic filing of papers shall be followed in this proceeding. 6. Pursuant to 807 KAR 5:001, Section 8(9), within seven days of the date of service of this Order, Duke Kentucky shall file by electronic means a written statement that it waives any right to service of Commission Orders by United States mail and that it or its authorized agent possess the facilities to receive electronic submissions.

KYSEIA Motion to Intervene

David Spenard Kentucky Solar Industries Association, Inc.

Order Entered: 1. The Attorney General’s motion to intervene is granted. 2. The Attorney General is entitled to the full rights of a party and shall be served with the Commission’s Orders and with filed testimony, exhibits, pleadings, correspondence, and all other documents submitted by parties after the date of this Order. 3. The Attorney General shall comply with all provisions of the Commission’s regulations, 807 KAR 5:001, Section 8, related to the service and electronic filing of documents. 4. Pursuant to 807 KAR 5:001, Section 8(9), within seven days of service of this Order, the Attorney General shall file a written statement with the Commission that: a. Certifies that it, or its agent, possesses the facilities to receive electronic transmissions; and b. Sets forth the electronic mail address to which all electronic notices and messages related to this proceeding shall be served.

20231221_PSC Deficiency Cured Letter.pdf

Duke Energy Kentucky, Inc.s Response to December 20, 2023 Deficiency Letter

Minna Sunderman Larisa Vaysman

20231220_PSC Deficiency Letter.pdf

Duke Energy Kentucky, Inc.s Response to Deficiency Notice dated December 14, 2023

Minna Sunderman Larisa Vaysman

Motion to Intervene

J. Michael West Office of the Kentucky Attorney General

20231214_PSC Deficiency Letter.pdf

Application of Duke Energy Kentucky, Inc. for an Adjustment to Rider NM Rates and for Tariff Approval

Minna Sunderman Larisa M. Vaysman

20231211_PSC Acknowledgment Letter.pdf

Duke Energy Kentucky, Inc. Notice of Intent to File an Application for an Adjustment to Rider NM Rates and for Tariff Approval Using Electronic Filing Procedures