PNW · 8-K · 20260904PR000046

Data Center / Load Growth

PINNACLE WEST CAPITAL CORP · 2026-09-04 · Importance 84 · Surprise 74

APS increased its long-term weather-normalized sales growth guidance to 5%-7% through 2030, from 4%-6%. Management said large C&I customers account for 4%-6% of the prior 5%-7% long-term growth guidance, and reported 2026 year-to-date C&I growth of 13.6%. The presentation identifies approximately 20 GW of uncommitted load, alongside 4.5 GW of committed load and an 8.6 GW 2025 system peak.

Key facts

• Pinnacle West's system peak was 8.6 GW in 2025; the presentation also showed 4.5 GW of committed load and approximately 20 GW of uncommitted load. source
• Pinnacle West said large commercial and industrial customers account for 4%-6% of its 5%-7% long-term weather-normalized sales growth guidance. source
• Pinnacle West said that large commercial and industrial customers have an amplifier effect on jobs and surrounding communities, leading to residential growth. source