Exhibit 31.1



CERTIFICATION



I, William J. Guc, certify that:



| | 1. | I have reviewed this report on Form 10-K and all reports on Form 10-D required to be filed in respect of the period covered
by this report on Form 10-K of WEPCo Environmental Trust Finance I, LLC (the “Exchange Act periodic reports”);
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| | 2. | Based on my knowledge, the Exchange Act periodic reports, taken as a whole, do 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;
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| | 3. | Based on my knowledge, all of the distribution, servicing and other information required to be provided under Form 10-D for the
period covered by this report is included in the Exchange Act periodic reports;
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| | 4. | I am responsible for reviewing the activities performed by Wisconsin Electric Power Company, as servicer, and based on my knowledge
and the compliance review conducted in preparing the servicer compliance statement required in this report under Item 1123 of Regulation
AB, and except as disclosed in the Exchange Act periodic reports, the servicer has fulfilled its obligations under the Environmental Control
Property Servicing Agreement, dated May 12, 2021, by and between Wisconsin Electric Power Company and WEPCo Environmental Trust Finance
I, LLC, in all material respects; and
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| | 5. | All of the reports on assessment of compliance with servicing criteria for asset-backed securities and their related attestation reports
on assessment of compliance with servicing criteria for asset-backed securities required to be included in this report in accordance with
Item 1122 of Regulation AB and Exchange Act Rules 13a-18 and 15d-18 have been included as an exhibit to this report, except as otherwise
disclosed in this report. Any material instances of noncompliance described in such reports have been disclosed in this report on Form 10-K.
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In giving the certifications above, I have reasonably relied on
information provided to me by the following unaffiliated parties: U.S. Bank Trust Company, National Association, as Indenture Trustee.



|Date: | March 14, 2024 | /s/ William J. Guc                                                                                                                                              
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|      |                | William J. Guc                                                                                                                                                  
|      |                | Vice President, Controller, and Assistant Corporate Secretary
    and senior officer in charge of the servicing function of Wisconsin
    Electric Power Company