Exhibit 99.1 Essential Utilities Reports Financial Results for Full-Year 2023 and Announces Guidance Earnings per share of $1.86 for 2023, compared to 2022 earnings of $1.77 Record infrastructure investments of $1.19 billion Acquired seven systems, adding over $44 million in rate base and 11,000 customers Initiating 2024 annual earnings per share guidance range of $1.96 to $2.00 Initiating capital investment guidance of $7.2 billion from 2024 through 2028 BRYN MAWR, PA (February 22, 2024) – Essential Utilit ...