Pinnacle West(PNW) - 2024 Q4 - Annual Results

Exhibit 99.1 FOR IMMEDIATE RELEASE February 25, 2025 Media Contact: Alan Bunnell (602) 250-3376 Analyst Contacts: Amanda Ho (602) 250-3334 Website: pinnaclewest.com PINNACLE WEST REPORTS 2024 FULL-YEAR AND FOURTH-QUARTER RESULTS Reliability for a Growing State Reliability remains at the core of the company's customer service and drives plans to continue providing a balanced energy portfolio delivering power at reasonable rates. "Our customer base, which for decades leaned heavily residential, is now more di ...