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WEC Energy Group , Inc. 2021 First Quarter Earnings Released May 3 , 2021 TABLE OF CONTENTS Pages Press Release Income Statements 1-3 4 Balance Sheets 5 Statements of Cash Flows Income Statement Impact of Amortization of Unprotected Tax Benefits Summary of Regulated Operation and Maintenance Expense - First Quarter Weather and Volumes - First Quarter 6 7 8 9 Retail Electric Sales Volume Information 10 Retail Natural Gas Sales Volume Information Other Financial Information Credit Ratings Quarterly EPS Earnings Drivers Investments in Regulated Renewables - Update 11 12 13 14 15 WEC Energy Group