PNW · News · 20260805N

Data Center / Load Growth

PINNACLE WEST CAPITAL CORP · 2026-08-05 · Importance 31 · Surprise 32

Arizona Public Service reported strong electricity demand from residential, commercial, and industrial customers across Arizona. Data centers and advanced-manufacturing facilities were identified as key sources of load growth, alongside additional investment by Taiwan Semiconductor Manufacturing Co. in Arizona. Weather-normalized sales increased 9.6% year over year, customer count grew 2.1%, and APS set a new peak-demand record.

Key facts

• TSMC's additional $100 billion investment in Arizona was cited as a driver of customer expansion and demand. source