PUBLIC SERVICE COMMISSION OF WEST VIRGINIA
CHARLESTON

CASE NO. NOIR APCO and WHEELING 26A

APPALACHIAN POWER COMPANY and
WHEELING POWER COMPANY
Notice of Intent to File General Base Rate Case.

PUBLIC NOTICE OF CHANGE IN RATES

On April 6, 2026, Appalachian Power Company and Wheeling Power Company
(Companies) filed a Notice of Intent to file a general base rate case (NOI). On April
16, 2026, the Public Service Commission of West Virginia (Commission) issued an
Order in the above-referenced proceeding and with respect to the NOI (Order) stating
that the “Commission has considered the potential impact of such a filing, and
whether there is any alternative that could extend the timing between general base
rate cases, levelize, and moderate the magnitude of future rate increase requests,
incentivize the Companies to control costs so as to reduce the need for, and
magnitude of, general base rate cases and, at the same time, consider the needs of
the Companies to timely recover reasonable and prudently incurred costs.” As the
alternative, the Order authorized the Companies to increase their existing base rates
pursuant to a “limited inflation-based revenue adjustment” effective June 1, 2026, if
the Companies agree to withdraw their NOI and not make a filing to change their base
rates on or before June 1, 2027, subject to the Companies agreeing to certain
conditions.

The Companies have accepted this alternative and the conditions. Consequently, on
April 23, 2026, in accordance with the Order, the Companies filed the affidavit of an
authorized corporate executive wherein the Companies: (1) agreed that they have
reviewed the Commission’s Final Order entered on March 31,2026 in Case No.
25-0310-E-P and will proceed with the securitization authorized therein, unless
otherwise ordered by the Commission, subject to the Companies alerting the
Commission of certain corrections and adjustments in that Order; (2) agreed to file a
motion to withdraw the NOI; and (3) agreed not to file a West Virginia base rate case
prior to June 1, 2027, thereby satisfying the Commission’s conditions and allowing the
inflation-based rate adjustment to base rates become effective on June 1, 2026.

Once effective on June 1, 2026, the Commission-approved inflation-based rate
adjustment to base rates will increase the Companies’ residential and commercial
base rates by 4.0 percent and will increase the Companies’ industrial base rates by
2.5 percent, excluding Special Contract rates, resulting in an overall base rate
increase of 3.5 percent, or approximately $40.1 million. The impact of the
inflation-based rate adjustment to base rates on an average monthly bill by customer
category will be as follows:

($) Increase/(Decrease) (%) Increase/(Decrease)

Residential $5.12 2.77%
Commercial $11.32 2.57%
Industrial $2,797.00 0.99%
Other $0.00 0.00%

The increases shown are based on averages of all customers in the indicated class.
Individual customers may receive increases that are greater or less than average. A
residential customer using 1,000 kWh per month would experience a monthly
increase over current rates of $4.84, or 2.74 percent.

Also on April 23, 2026, the Companies filed with the Commission updated Tariff
Sheets reflecting the above-described inflation-based rate adjustment and resulting
revised base rates, effective as of June 1, 2026. A complete copy of the Companies’
Tariffs, as well as a representative of the Companies to provide information requested
concerning them, are available to all customers, prospective customers, or their
agents at any of the offices of the Companies.

Copies of the Companies’ Tariffs are also available for public inspection at the office
of the Executive Secretary of the Public Service Commission at 201 Brooks Street,
Charleston, West Virginia.

APPALACHIAN POWER COMPANY and
WHEELING POWER COMPANY

16671