Exhibit 31.4
CERTIFICATION OF CHIEF FINANCIAL OFFICER
PURSUANT TO
EXCHANGE ACT RULES13a-14(a) AND15d-14(a),
AS ADOPTED PURSUANT TO
SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002
I, J. William Holden, certify that:
| 1. | I have reviewed this Amendment No. 1 to Annual Report on Form10-K for the fiscal year ended December 31, 2017 of Dynegy Inc.; and |
| 2. | Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report. |
Date: April 27, 2018 | /s/ J. William Holden | |||||
J. William Holden | ||||||
Executive Vice President and Chief Financial Officer of Vistra Energy Corp. (successor to Dynegy Inc.) |
