OUCC: Duke Energy Rate Case

New rates for Duke Energy received IURC approval in orders issued on Jan. 29, 2025 and Feb. 3, 2025. The approved increase in annual revenues is approximately $295.7 million, per the Feb. 3 order.

Duke Energy had requested an increase of approximately $491.5 million, to be implemented in two phases. The OUCC recommended limiting the increase to about $184.7 million based on its analysis of the case's evidence.

Duke Energy has filed a motion for rehearing and reconsideration. The OUCC and industrial customers have responded.

All publicly filed documents in this case (Cause No. 46038) are available on the IURC's website.

Utility Testimony
Duke Energy filed its petition and the following testimony on Apr. 4, 2024:
1. Pinegar
2. Rutledge
3. Graft
4. Sieferman
5. Lilly
6. Diaz
7. Flick
8. Rimal
9. Bauer
10. McKenzie
11. Kopp
12. Spanos
13. Riley
14. Buck
15. Panizza
16. Caldwell
17. Luke
18. Hoeflich
19. Hill
20. Swez
21. Verderame
22. Abbott: 1 | 2
23. McCorkle
24. Colley
The utility's accounting work papers and additional exhibits are posted on the Commission's website.
Public Comments
The OUCC received and filed more than 5,600 pages of consumer comments in this case. In addition, the IURC heard testimony from consumers at a series of public field hearings:
OUCC news releases inviting public comments were issued in May, June, and July.
OUCC Testimony
The OUCC filed the following testimony on July 11, 2024, based on a 3 1/2 month technical and legal review of Duke Energy's proposal. The agency's July 12, 2024 news release has more information.
- Eckert
- M. Garrett
- Lantrip
- Latham
- Armstrong
- Wright
- Sanka
- D. Garrett: 1 | 2
- Hanks
- Dismukes
- Consumer Comments

Previous Rate Case

2019-2020 Rate Case (Current Rates)
The IURC issued its order in the Duke Energy rate case on June 29, 2020, authorizing a $146 million increase in the utility's annual operating revenues.
The Indiana Supreme Court reversed a portion of the Commission's order on Mar. 10, 2022. Duke Energy's petition for rehearing was denied by the Indiana Supreme Court on May 26, 2022.
- A settlement agreement resolving issues on remand received Commission approval on Apr. 12, 2023.
- The OUCC, industrial customers, and Duke Energy reached the agreement and filed testimony supporting it.
- The approved settlement will provide customers with $70.25 million in refund credits, and $23.2 million in annual credits going forward.
In the parties' respective closing briefs in the original IURC case, Duke Energy requested a $362 million increase. The OUCC recommended a rate reduction of approximately $135 million.
IURC public field hearings in this case were held in Carmel, Terre Haute, and New Albany. The OUCC issued an August 27, 2019 news release to invite consumer comments.
All publicly filed documents in IURC Cause No. 45253 are posted in the Commission's case file, including consumer comments filed by the OUCC. Issues regarding ash pond closure costs and a proposed electric vehicle pilot program have been moved to separate subdockets.
The OUCC filed the following testimony on Duke Energy's rate request on October 30, 2019:
- Submission of Case-In-Chief (4 pages)
- 1. Eckert (24 pages)
- 2. Kollen (194 pages)
- 3. Armstrong (186 pages)
- 4. Blakley (24 pages)
- 5. Alvarez (53 pages)
- 6. Hand (51 pages)
- 7. Haselden (65 pages)
- 8. Aguilar (234 pages)
- 9. Boerger (33 pages)
- 10. Dismukes (192 pages)
- 11. Garrett - Depreciation (511 pages)
- 12. Garrett - Return on Equity (121 pages)
- 13. Watkins (103 pages)
Duke Energy filed its petition on July 2, 2019. Its initial testimony included:
- 1: Pinegar (46 pages)
- 2: Davey (40 pages)
- 3: Jacobi (43 pages)
- 4: Douglas (119 pages)
- 5: Sieferman (82 pages)
- 6: Graft (35 pages)
- 7: Diaz (46 pages)
- 8: Bailey (30 pages)
- 9: Flick (42 pages)
- 10: Hansen (32 pages)
- 11: Hevert (167 pages)
- 12: Sullivan (15 pages)
- 13: Kopp (81 pages)
- 14: Spanos:
  - Part 1 (150 pages)
  - Part 2 (149 pages)
  - Part 3 (300 pages)
- 15: Pike (38 pages)
- 16: Setser (120 pages)
- 17: Panizza (16 pages)
- 18: Metzler:
  - Part 1 (188 pages)
  - Part 2 (99 pages)
  - Part 3 (91 pages)
- 19: Mosley (39 pages)
- 20: Gurganus (72 pages)
- 21: Thiemann (203 pages)
- 22: Phipps (16 pages)
- 23: Verderame (40 pages)
- 24: Ritch (26 pages)
- 25: Abbott (29 pages)
- 26: Hart (43 pages)
- 27: Christie (50 pages)
- 28: Schneider (16 pages)
- 29: Quick (35 pages)
- 30: Hunsicker (25 pages)
- 31: Reynolds (58 pages)

3-3-2025