Office of the People's Counsel v. District of Columbia Public Service Commission

District of Columbia Court of Appeals·Decided March 5, 2026·No. 25-AA-0250 & 25-AA-0310·Published

Opinion

Notice: This opinion is subject to formal revision before publication in the Atlantic and Maryland Reporters. Users are requested to notify the Clerk of the Court of any formal errors so that corrections may be made before the bound volumes go to press.

DISTRICT OF COLUMBIA COURT OF APPEALS Nos. 25-AA-0250 & 25-AA-0310

OFFICE OF THE PEOPLE’S COUNSEL OF THE DISTRICT OF COLUMBIA, et al., PETITIONER,

V.

D.C. PUBLIC SERVICE COMMISSION, RESPONDENT, and

POTOMAC ELECTRIC POWER CO., INTERVENOR.

On Petition for Review of an Order of the District of Columbia Public Service Commission (Formal Case No. 1176)

(Argued October 28, 2025 Decided March 5, 2026)

Jason T. Gray, with whom Sandra Mattavous-Frye, Tim B. Hamilton, Karen R. Sistrunk, Laurence C. Daniels, and Ankush Nayar were on the briefs, for petitioner Office of the People’s Counsel of the District of Columbia.

Jason T. Gray, with whom Frann G. Francis was on the briefs, for petitioner Apartment and Office Building Association of Metropolitan Washington.

Brian O. Edmonds, with whom Jamond D. Perry, Naza N. Shelley, Stephan Jaksch, Shanelle C. Patterson, Kenneth R. Stark, and Robert A. Weishaar, Jr. were on the brief, for respondent.

Dennis P. Jamouneau, with whom Anne Bancroft, Kimberly A. Curry, Taylor W. Beckham, and Kunle Adeyemo were on the brief, for intervenor.

Before BECKWITH, EASTERLY, and DEAHL, Associate Judges.

DEAHL, Associate Judge: The Office of the People’s Counsel and the Apartment and Office Building Association, or AOBA, bring this challenge to an order of the Public Service Commission approving Pepco’s 2024-2026 electric rate plan. They appeal both the initial order approving a $123.4 million rate increase over two years (No. 22328), and the subsequent order denying their request for reconsideration (No. 22358). Before approving the rate plan in the first instance, the Commission held a “legislative-style hearing” in which the parties were limited to presenting oral arguments and had no opportunity to present witnesses or to cross- examine adversarial witnesses.

The petitioners objected to that limited process before the Commission, and they now renew their challenges on appeal, arguing that the Commission was required to hold an evidentiary, trial-type hearing under the District’s Administrative Procedure Act and more specifically the “contested case” requirements codified at D.C. Code § 2-509(b). They also raise several subsidiary claims including, as most relevant here, that the Commission’s approval of two aspects of Pepco’s rate plan— the Effective Rate Adjustment and the Bill Stabilization Adjustment—was arbitrary and capricious. We agree that this was a contested case which required the Commission to hold a trial-type evidentiary hearing under D.C. Code § 2-509(b),

and that its failure to do so renders its orders unsustainable. We thus vacate the Commission’s orders approving Pepco’s 2024-2026 rate plan and remand this case for further proceedings.

I. Facts and Procedural History

This dispute involves a recent change in the Commission’s ratemaking practices from the historically approved “annual rate plans” to what is referred to as “multi-year rate plans.” This case also appears to be one of the first times the Commission approved any rate plan after holding only a “legislative-style” hearing, instead of the evidentiary hearings it historically held. Multi-year rate plans, as the name suggests, are rate plans the Commission approves for multiple years to come. They raise new questions about how rates should be calculated when the data underlying them, like the number of customers or their expected energy usage, is projected so many years into the future.

Throughout this case the petitioners argued that they were entitled to an evidentiary hearing, where the parties would have the opportunity to present expert witnesses and cross-examine adversarial witnesses, before the Commission could approve any multi-year rate plan. AOBA was especially concerned with the impact of Pepco’s plan on the “GT-LV” class of customers, which mostly consists of large commercial buildings like office spaces and apartment complexes. Namely, it

objected to two central features of Pepco’s plan: the Effective Rate Adjustment and the Bill Stabilization Adjustment, which are described below.

Pepco’s Plan

Although the Commission has set rates for decades, this case concerns only the second approval of a multi-year rate plan in the Commission’s history. Before turning to the rate plan at issue, we first explain the Commission’s transition toward multi-year plans more generally and its approval of Pepco’s first multi-year rate plan—the “pilot” program on which the plan at issue here was based.

The Commission began exploring multi-year rate plans in 2017 under D.C.

Code § 34-1504(d)(3), which granted it the authority to adopt “alternative forms of regulation” and detailed the requirements for approving them. Formal Case No. 1139, Order No. 18846 ¶ 593 (Pub. Serv. Comm’n July 25, 2017). The Commission had previously approved rates based on mostly historical data and up to six months of forecasted data. Formal Case No. 1156, Order No. 20273 ¶¶ 82-83 (Pub. Serv. Comm’n Dec. 20, 2019). Multi-year rate plans differ in that they are based on both historical data and up to three years of forecasted data, including capital investments and operations and maintenance costs. Id. ¶ 93.

In 2021, the Commission approved a multi-year rate plan for the first time, greenlighting Pepco’s proposed 18-month “Modified Enhanced Multiyear Rate Plan Pilot.” Formal Case No. 1156, Order No. 20755 (Pub. Serv. Comm’n June 8, 2021) (hereinafter “Order No. 20755”). In approving the pilot plan, the Commission set a framework for evaluating future multi-year plans to ensure they meet the public interest requirements of D.C. Code § 34-1504(d)(2). The Commission determined that the pilot would “serve as an opportunity to gather valuable lessons learned in assessing future [multi-year rate plan] proposals and to facilitate the development of [alternative forms of regulation].” Order No. 20755 ¶ 143.

In 2023, Pepco applied for its second multi-year rate plan, the one at issue in this case, requesting a cumulative $190.7 million rate increase for 2024-2026. Formal Case No. 1176, Order No. 22328 ¶ 4 (Pub. Serv. Comm’n Nov. 26, 2024). Pepco also filed a “traditional test year” application, as the Commission directed, which proposed rates under the annual plan paradigm based on actual data from January to June 2023 and forecasted data from July to December 2023. Id. ¶ 18. The Commission simultaneously evaluated both applications and eventually approved a $123.4 million cumulative rate increase for 2024-2026, which it termed the “Extended Pilot” multi-year rate plan. Id. ¶¶ 567-68.

The underlying dispute in this case, as with most ratemaking cases, is how much Pepco should be allowed to charge District consumers. On a basic level, this “revenue requirement” is calculated by multiplying the “ratebase” by the rate of return plus operating expenses. Projected “billing determinants,” such as energy sales, number of customers, and billing demand, are essential components of how the ratebase is calculated. And the ratebase is then subject to several backend adjustments.

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