Exhibit 99.1 NEWS RELEASE Evergy Announces First Quarter 2024 Results, Declares Quarterly Dividend and Reaffirms 2024 Guidance • First Quarter 2024 GAAP EPS of $0.53, compared to$0.62 in 2023 • First Quarter 2024 Adjusted EPS (Non-GAAP) of $0.54, compared to$0.59 in 2023 • Declares quarterly dividend of $0.6425 per share • Reaffirms 2024 GAAP and Adjusted (Non-GAAP) EPS guidance of$3.73 to $3.93 KANSAS CITY, MO., May 9, 2024 – Evergy, Inc. (NASDAQ: EVRG) today announced first quarter 2024 GAAP earnings o ...