PNW’s Tailwinds
Pinnacle West Capital benefits from its expanding customer base, driven by strong economic development in its service territory, and reports 2.4% customer growth in the fourth quarter. The company expects 1.5-2.5% retail customer growth and 5-7% retail electricity sales growth through 2030. These include a rise in data center demand and new large manufacturing facilities, expecting a contribution of 3-5% in 2026, with nearly 4.5 gigawatts (GW) of committed high-load customer demand secured. This will boost the company’s revenues and long-term financial performance.
The company plans to reduce operating and maintenance expenses per megawatt-hour through efficiency initiatives, cost control measures and technological development, supporting top-line growth. PNW expects adjusted core O&M expenses of $970-$980 million in 2026, remaining flat year over year.
The company’s strategic capital investments in infrastructure development help maintain service reliability, enhance operational efficiency, optimize asset performance, reduce costs and ultimately drive stronger and more sustainable financial growth. The company invested nearly $2.4 billion in 2025 and plans to invest $8 billion for 2026-2028, allocating $2.1billion in transmission, $2.31billion in distribution and $2.28B billion in generation.