Exhibit 23.5
CONSENT OF INDEPENDENT AUDITORS
We consent to the incorporation by reference in Vistra Energy Corp.’s Amendment No. 1 to the Registration Statement on FormS-4, of our report dated May 30, 2017, relating to the combined financial statements of the Thermal Assets as of and for the year ended December 31, 2016 (which report expresses an unqualified opinion and includesemphasis-of-matter paragraphs related to certain expense allocations and to the sale of the Thermal Assets), appearing as Exhibit 99.1 in the Current Report on Form8-K of Dynegy Inc., dated June 28, 2017, and to the reference to us under the heading “Experts” in the Prospectus which is part of this Registration Statement.
/s/ Deloitte & Touche LLP
Houston, Texas
January 23, 2018