PHOENIX–(BUSINESS WIRE)–Arizona Public Service (APS) announced today it plans to convert two units at its Cholla Power Plant in Joseph City, Navajo County, Arizona to natural gas. The repurposed resource, with operations beginning in 2029, will help meet the state’s growing energy demand while maintaining reliable, affordable electric service for customers.Originally commissioned in 1962, the Cholla Power Plant played a vital role in powering Arizona for decades, providing a critical power sup