CONFIRMING STATEMENT

This Confirming Statement ("Statement") confirms
that the undersigned, Yuki Whitmire, pursuant to her
 power and authority in her role as attorney-in-fact for
Lisa M. Crutchfield ("Reporting Person") granted by
that certain Confirming Statement entered into as
of May 4, 2022, hereby authorizes, directs and
designates Daniela Gutierrez ("Designee"), acting
singly, to: (1) prepare, execute in the Reporting
Person's name and on the Reporting Person's
behalf, and submit to the U.S. Securities and
Exchange Commission (the "SEC") a Form ID,
including amendments thereto, and any other
documents necessary or appropriate to obtain
codes and passwords enabling the undersigned
to make electronic filings with the SEC of reports
required by Section 16(a) of the Securities
Exchange Act of 1934 ("Exchange Act") or any
rule or regulation of the SEC; (2) execute for
and on behalf of the Reporting Person, in the
Reporting Person's capacity as an officer and/or
director of Vistra Corp. (the "Company"),
Forms 3, 4, and 5 in accordance with
Section 16(a) of the Exchange Act and the rules
thereunder; (3) do and perform any and all acts
for and on behalf of the Reporting Person which
may be necessary or desirable to complete
and execute any such Form 3, 4, or 5, complete
and execute any amendment or amendments
thereto, and timely file such form with the SEC
and any stock exchange or similar authority; and
(4) take any other action of any type whatsoever
in connection with the foregoing which, in the
opinion of the Designee, may be of, benefit to,
in the best interest of, or legally required by,
the Reporting Person, it being understood that
the documents executed by the Designee on
behalf of the Reporting Person pursuant to this
Statement shall be in such form and shall contain
such terms and conditions as the Designee may
approve in the Designee's discretion.

The undersigned, pursuant to her power and
authority in her role as attorney-in-fact for the
Reporting Person, hereby grants to the Designee
full power and authority to do and perform any
and every act and thing whatsoever requisite,
necessary, or property to be done in the exercise
of any of the rights and powers granted under
this Statement, as fully to all intents and purposes
as the Reporting Person might or that the Designee,
or the Designee's substitute or substitutes, shall
lawfully do or cause to be done by virtue of this
Statement and the rights and powers herein granted.
On behalf of the Reporting Person, the undersigned
acknowledges that the foregoing Designee, in serving
 in such capacity on behalf of the Reporting Person,
is not assuming, nor is the Company assuming,
 any of the Reporting Person's responsibilities to
comply with Section 16 of the Exchange Act.

The authority of the Designee under this Statement
shall continue until the Reporting Person is no
longer required to file Forms 3, 4, and 5 with
respect to the Reporting Person's holdings of
and/or transactions in securities of the Company,
unless earlier revoked by the Reporting Person, or
any attorney-in-fact, in a signed writing delivered
to the Designee.

IN WITNESS WHEREOF, the undersigned has caused
this Statement to be executed as of this
10th day of June, 2024.

By: /s/ Yuki Whitmire, as attorney-in-fact
for Lisa M. Crutchfield
Name: Yuki Whitmire