Exhibit 99.1 July 31, 2025 IDACORP, Inc. Announces Second Quarter 2025 Results, Increases Lower-End of Earnings Guidance Range | | Three months | | | | | --- | --- | --- | --- | --- | | | ended | | Six months ended | | | Net income attributable to IDACORP, Inc. - June 30, | | | | | | 2024 | $| 89.5 |$ | 137.7 | | Increase (decrease) in Idaho Power net income: | | | | | | Retail revenues per megawatt-hour (MWh), net of | | | | | | power cost adjustment mechanisms | 8.8 | | 20.3 | | | Customer growth, net o ...