Kentucky Public Service Commission

Final Order Entered: 1. Duke Kentucky violated KRS 278.160(2) by applying gas ABB tariff changes prior to the annual settle-up month at least 638 times; however, no civil penalty is assessed because Duke Kentucky’s actions were not willful. 2. Duke Kentucky did not use average bills to calculate ABB bills in violation of tariff. 3. Duke Kentucky violated KRS 278.160(2) by using the incorrect divisor for electric ABB at least 7,767 times, and by changing electric ABB amounts unilaterally before the settle-up month at least 4,907 times, constituting a total of 7,767 separate violations of KRS 278.160(2). These violations constitute willful conduct by Duke Kentucky. 4. Duke Kentucky is assessed a civil penalty of $112,000 pursuant to KRS 278.990(1) for the violations set out in paragraph 3 above. 5. Duke Kentucky shall pay the assessed $112,000 civil penalty within 30 days of the service of this Order. Payment shall be made by certified check or money order made payable to Kentucky State Treasurer and shall be mailed or delivered to the Office of General Counsel, Kentucky Public Service Commission, 211 Sower Boulevard, P.O. Box 615, Frankfort, Kentucky, 40602-0615. 6. This case will be closed and removed from the Commission’s docket.

Order Entered: 1. Duke Kentucky’s July 15, 2024, August 23, 2024, and November 26, 2024 petitions for confidential treatment are granted. 2. The designated material granted confidential treatment by this Order shall not be placed in the public record or made available for public inspection for an indefinite period or until further order of this Commission. 3. Use of the designated material granted confidential treatment by this Order in any Commission proceeding shall comply with 807 KAR 5:001, Section 13(9). 4. If the designated material granted confidential treatment by this Order becomes publicly available or no longer qualifies for confidential treatment, Duke Kentucky shall inform the Commission and file with the Commission an unredacted copy of the designated material. 5. If a nonparty to this proceeding requests to inspect the material granted confidential treatment by this Order and the period during which the material has been granted confidential treatment has not expired, Duke Kentucky shall have 30 days from receipt of written notice of the request to demonstrate that the material still falls within the exclusions from disclosure requirements established in KRS 61.878. If Duke Kentucky is unable to make such demonstration, the requested material shall be made available for inspection. Otherwise, the Commission shall deny the request for inspection.

Duke Energy Kentucky, Inc.s Request to Submit Case on the Record

Minna Sunderman Larisa Vaysman

Duke Energy Kentucky, Inc.s Second Supplemental Response to Commission Staffs First Request for Information

Minna Sunderman Larisa Vaysman

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

Minna Sunderman Rocco DAscenzo

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

Deborah Gates Larisa Vaysman

Data Request

Petition for Confidential Treatment of Duke Energy Kentucky, Inc. for an Attachment to its Response to June 24, 2024, Order

Emily Olive Duke Energy Kentucky, Inc.

Response of Duke Energy Kentucky, Inc.

Emily Olive Duke Energy Kentucky, Inc.

Read 1st Cover Letter - Case No. 2024-00114

Emily Olive Duke Energy Kentucky, Inc.

Order Entered: 1. This case is opened to investigate the alleged failure of Duke Kentucky to comply with KRS 278.160(2). 2. Within 20 days of the date of entry of this Order, Duke Kentucky shall submit to the Commission a written response to this Order identifying, subject to 807 KAR 5:001, Section 3(10) rules for redaction of personal information: a. All accounts receiving gas annual budget billing that had settle-ups calculated before January 4, 2022, for which billing was subsequently changed prior to the next yearly settle-up without customer request; b. All accounts receiving gas annual budget billing on or after December 1, 2022, for which billing was calculated based on anything other than customer’s usage multiplied by the rate in effect at the time of settle-up; c. All accounts receiving electric annual budget billing on or after December 1, 2022, for which billing was subsequently changed prior to the next yearly settle-up without customer request; d. All accounts receiving electric annual budget billing on or after April 1, 2022, for which billing was calculated based on anything other than customer’s usage multiplied by the rate in effect at the time of settle-up; and e. All accounts receiving electric annual budget billing on or after December 1, 2021, for which billing was calculated using a divisor of 12.