Exhibit 99.1 FOR IMMEDIATE RELEASE Itron Announces Fourth Quarter and Full Year 2023 Financial Results LIBERTY LAKE, Wash.--(BUSINESS WIRE)--February 26, 2024 --Itron, Inc. (NASDAQ:ITRI), which is innovating new ways for utilities and cities to manage energy and water, announced financial results for its fourth quarter and full year ended Dec. 31, 2023. Key results for the quarter and full year include (compared with the fourth quarter and full year of 2022): • Revenue of $577 million and$2.2 billion, incr ...