Madison Gas & Electric 10-Q 2021 Q1 Quarterly report

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EXHIBIT 31.3

Certification Pursuant to Rule 13a-14(a) and 15d-14(a) of the Securities Exchange Act of 1934

I, Jeffrey M. Keebler,certify that:

1. Ihave reviewed this quarterly report on Form 10-Q of Madison Gas and Electric Company;

2. Basedon my knowledge, this report does not contain any untrue statementof a material fact or omit to state

a material fact necessary to make the statements made, in light of the circumstancesunder which such

statements were made, not misleading with respect to the period covered by this report;

3. Basedon my knowledge, the financial statements, and other financial information included in this report,

fairlypresent in all material respects the financial condition, results of operations and cash flows of the

registrant as of,and for,the periods presented in this report;

4. Theregistrant's other certifying officer and I are responsible for establishing and maintaining disclosure

controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over

financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

(a) Designed such disclosure controls and procedures, or caused such disclosure controlsand procedures to

be designed under our supervision, to ensure that material information relating to the registrant,

including its consolidated subsidiaries, is made known to us by others within those entities, particularly

during the period in which this report is being prepared;

(b) Designedsuch internal control over financial reporting, or caused such internal control over financial

reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability

of financial reporting and the preparation of financial statements for external purposes in accordance

with generally accepted accounting principles;

(c) Evaluatedthe effectiveness of the registrant's disclosure controlsand procedures and presented in this

report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of

the period covered by this report based on such evaluation; and

(d) Disclosedin this report any change in the registrant's internal control over financial reporting that

occurred during the registrant's most recent fiscal quarter (the registrant'sfourth fiscal quarter in the case

of an annual report) that has materially affected, or is reasonably likely to materiallyaffect, the

registrant's internal control over financial reporting; and

5. Theregistrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal

control over financial reporting, to the registrant's auditorsand the audit committee of the registrant's board

of directors (or persons performing the equivalent functions):

(a) All significant deficiencies and material weaknesses in the design or operation of internal controlover

financial reporting which are reasonably likely to adversely affect the registrant'sability to record,

process, summarize and report financial information; and

(b) Anyfraud, whether or not material, that involves management or other employees who have a significant

role in the registrant's internal control overfinancial reporting.

/s/ Jeffrey M. Keebler

Jeffrey M. Keebler

Chairman, President and Chief Executive Officer

Date: May 6, 2021