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We hereby consent to the incorporation by reference in the Registration Statements on Form S-3 (Nos. 333-232905, 333-231030) and Form S-8 (Nos. 333-162890, 333-183051, 333-190336, 333-207846, 333-228120) of ALLETE, Inc. of our report dated February 17, 2021, relating to the financial statements, financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K.