-- Pinnacle West Capital (PNW) reported Monday Q1 total generation of 6,065 gigawatt-hours for the quarter, compared with 6,010 GWh a year earlier.
The company reported a total energy supply of 8,503 GWh for the quarter ended March 31, up from 8,254 GWh a year earlier.
Pinnacle West generated 2,393 GWh from nuclear in Q1 compared with 2,508 GWh a year earlier, while it lifted coal output to 1,460 GWh from 1,101 GWh.
The company produced 2,017 GWh from gas, oil and other sources, down from 2,222 GWh a year earlier, while it increased renewable generation to 195 GWh, up from 180 GWh.
Pinnacle West procured 2,437 GWh of power in the quarter, compared with 2,244 GWh a year earlier, including renewable purchases that rose to 1,638 GWh from 1,492 GWh.
The company reported 8,160 GWh of total electricity sales, up from 7,794 GWh a year ago, while total retail sales climbed to 7,553 GWh from 6,707 GWh.
Total residential sales were 2,814 GWh for the quarter, up from 2,669 GWh a year earlier.
Total sales to businesses were 4,740 GWh for Q1, up from 4,038 GWh a year ago.
Pinnacle West strengthened its nuclear capacity by acquiring nearly 100 megawatts at the Palo Verde generating station in the third quarter of 2025 and plans to invest about $500 million over the next 10 years to expand and upgrade the facility.
The company is expanding generation capacity with plans to build up to 2 GW of new natural gas-fired power, while it is also acting as an anchor shipper on a gas pipeline expected to start operations by late 2029.
Pinnacle West expects retail customer growth of 1.5% to 2.5% in 2026 and projects weather-normalized sales to increase 4% to 6%, driven by demand from large manufacturing sites and data centers.
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