Skip to content
RateBase
← All cases

OH · electric · 26-132-EL-AIR

Duke Energy Ohio — 2026 general rate case

Bottom line

The company expects evidentiary hearings in the fourth quarter of 2026 and a final decision in May 2027. Requested rate base was not specified in the reviewed Form 10-Q and remains an explicit data gap.

Case summary

Duke Energy Ohio filed for an approximately $90 million annual electric distribution increase, a 10.5% return on equity, and a 52.66% common-equity ratio.

Latest development
No completed event

Not scheduled

Next event
Evidentiary hearings anticipated

Oct 1, 2026–Dec 31, 2026

Case stage

Regulatory process

filed

  1. Filed

    Mar 30, 2026

  2. Testimony

    Not recorded

  3. Hearings

    Not recorded

  4. Briefing

    Not recorded

  5. Decision

    Not recorded

  6. Rates effective

    Not recorded

State rules

Base-rate reviews and adjustment mechanisms in Ohio

This docket is a full base-rate review. Selected charges can change on separate schedules without reopening every issue in this case.

Full base-rate review

Every three years beginning by year-end 2029

Effective Aug 14, 2025

Each electric distribution utility must file a distribution rate case by December 31, 2029 and at least every three years thereafter.

Rate period: A utility may use a conventional 12-month test period or propose three consecutive 12-month forecasted rate years with annual true-ups.

Governing rule ↗

Between full reviews

Transmission Cost Recovery Rider

Annual update

The TCRR passes approved transmission-related charges through a reconcilable rider. Utilities file annual updates under the PUCO's rider rules.

Governing source ↗

Electric Security Plan riders

Plan- and rider-specific

An approved electric security plan can include infrastructure, modernization, and other riders with their own update and review schedules rather than waiting for the next distribution base-rate case.

Governing source ↗
View the full Ohio regulatory framework →

Current case economics

Economics

Filed request and any outcome captured in this docket.

MetricUtility requestCurrent case outcomeLike-for-like difference
Annual revenue increase

$90M

Annual utility request

Not available

No outcome yet

Rate base

Not available

Not captured in current case sources

Not available

No outcome yet

Return on equity

10.5%

Requested common-equity return for the electric distribution case. · Mar 30, 2026

Not available

No outcome yet

Common equity ratio

52.66%

Requested ratemaking capital structure common-equity layer. · Mar 30, 2026

Not available

No outcome yet

Residential bill impact

Not available

Not captured in current case sources

Not available

No outcome yet

Utility context

Prior authorizations, mechanism values, actuals, and company projections are shown separately because they are not default like-for-like case comparisons.

Common equity ratio

authorized · Allowed equity layer for Ohio retail electric service. · Feb 10, 2026

50.5%

Rate base

disclosed actual · Ohio state-jurisdictional retail electric distribution rate base; excludes separately reported wholesale transmission rate base. · Feb 10, 2026

$2,000M

Return on equity

authorized · Allowed return on equity for Ohio retail electric distribution service. · Feb 10, 2026

9.5%

Full docket record

2 events · 2 documents · 1 citation

View record
Last updated
Jul 20, 2026
Docket reviewed
Jul 20, 2026
Economics reviewed
Jul 20, 2026
Official documents
2
Evidence citations
1

Docket history

Material filings, hearings, orders, and effective dates.

  1. Oct 1, 2026–Dec 31, 2026

    Evidentiary hearings anticipated

    utility guidance · conditional

  2. May 1–31, 2027

    Final decision expected

    utility guidance · conditional

Documents

Docket and evidence documents linked to this proceeding.

Ohio Consumers' Counsel Duke Energy Ohio rate-case page

official docket · primary ·

Open document ↗

Duke Energy Form 10-Q for the quarter ended March 31, 2026

evidence · primary · May 5, 2026

Open document ↗

Citations

Field-level excerpts and review metadata supporting material facts.

Duke Energy Form 10-Q for the quarter ended March 31, 2026

sec filing · May 5, 2026

Raw observations

Stage-preserving economics and party positions as published in the canonical record.

MetricStagePartyPeriodValueEvidence
Common equity ratioutility requestDuke Energy Ohio, Inc.52.66%
Annual revenue changeutility requestDuke Energy Ohio, Inc.$90M
Return on equityutility requestDuke Energy Ohio, Inc.10.5%