PNW · 8-K · 20261103PR000051

Data Center / Load Growth

PINNACLE WEST CAPITAL CORP · 2026-11-03 · Importance 83 · Surprise 82 · In source text

APS reported 14.5% growth in commercial and industrial sales and 9.5% weather-normalized sales growth in the third quarter of 2026, alongside an all-time peak demand record of 9,166 MW on August 2. The company projects customers’ annual electricity needs will more than double by 2041 and peak demand will rise more than 5,000 MW above current levels. APS filed an Integrated Resource Plan with the Arizona Corporation Commission outlining resources and transmission investments for the next 15 years. Under its Pledge for Responsible Energy Growth, APS says extra-large customers must fund the infrastructure needed to serve their growth, and it will not connect them faster than the grid can reliably support.

Key facts

• Pinnacle West projects that customers' annual electricity needs will more than double by 2041, while peak demand is expected to rise more than 5,000 MW above today's peak demand. source
• Pinnacle West's APS filed an Integrated Resource Plan with the Arizona Corporation Commission outlining the resources needed to serve customers over the next 15 years. source
• Pinnacle West's APS pledge for responsible energy growth provides that new extra-large customers will not be connected faster than the grid can reliably support, must fund the costs of serving their growth, and sufficient capacity will be preserved for existing and future Arizona customers. source

Impact estimates