Who Are the Core Customers in Pinnacle West Company's Target Market?

Residential electricity customers Pinnacle West form the largest group: about 1.45 million accounts across APS as of early 2026, with roughly 88 percent of accounts being residential – critical for stable base load and regulatory rate cases.

Commercial energy customers Arizona include SMEs and large retailers that shape demand patterns and peak loads; municipal and wholesale partners use APS transmission to manage summertime imbalances and reliability across the state.

Pinnacle West serves a mixed base: mainly consumers (residential) by account count and businesses/institutions by volume and revenue, balancing retail tariffs, demand charges, and wholesale arrangements to optimize earnings.

While residential drives account share, Pinnacle West target market focus has shifted toward industrial customers – semiconductor and aerospace firms – because a few large loads materially increase revenue and grid utilization and support higher-margin commercial rates; see more in How Pinnacle West Company Works and Makes Money.

Demand is concentrated in the Phoenix metro (Maricopa County), which grew population by over 1.8% in 2024 and remains a top U.S. growth corridor; this concentration matters because local load growth drives most Pinnacle West core customers and Pinnacle West target market dynamics.

The Northwest Valley and Southeast Valley host large industrial parks and emerging data center clusters; commercial energy customers Arizona and large industrial electricity customers Pinnacle West in these zones account for outsized peak demand and capacity needs.

Pinnacle West is strongest in distribution reach across Phoenix and in serving industrial customers Pinnacle West via large commercial rates and negotiated contracts; utility-scale solar partners and developers also strengthen the revenue mix through PPAs and capacity additions.

Industrial load in the service territory is projected to grow at a compound annual rate exceeding 6% through 2026, outpacing national utility averages; the silicon desert effect – advanced manufacturing requiring continuous cleanroom power – adds concentrated, high-capacity demand and raises reliability needs for residential electricity customers Pinnacle West and commercial energy customers Arizona alike. Read more in the Sales and Marketing Strategy of Pinnacle West Company

Pinnacle West expands its audience by aligning a $4.2 billion annual capital program (2025 – 2026) to modernize the grid, supporting new industrial loads and utility – scale solar partners, and by joining state initiatives that win large commercial and industrial accounts in Arizona.

Retention relies on digital customer experience platforms, flexible commercial rates, demand response programs, and targeted assistance for low – income customers; these reduce churn during seasonal price spikes and improve satisfaction for residential electricity customers Pinnacle West.

Pinnacle West builds depth via renewables contracts, municipal and government partnerships, and incentives for residential solar and rooftop customers APS, creating ecosystem stickiness across small business energy customers Pinnacle West Arizona and large industrial electricity customers Pinnacle West.

The key lever is infrastructure investment: the $4.2 billion annual capex enables a projected 1.5 – 2.0% annual customer – base increase (2025 – 2026) by accommodating population growth and attracting industrial customers who raise average revenue per user.