Exhibit 99.1 May 2, 2024 IDACORP, Inc. Announces First Quarter 2024 Results, Reaffirms 2024 Earnings Guidance BOISE, Idaho--IDACORP, Inc. (NYSE: IDA) reported first quarter 2024 net income attributable to IDACORP of $48.2 million, or $0.95 per diluted share, compared with $56.1 million, or $1.11 per diluted share, in the first quarter of 2023. “We ended the first quarter on plan, as we began to see the benefit of rate changes along with continued strong customer growth," said IDACORP President and Chief Exe ...