Arizona Public Service

What Arizona Public Service does

Arizona Public Service (APS) is a vertically integrated, regulated electric utility and the principal subsidiary of Pinnacle West Capital Corporation (NYSE: PNW). Founded in 1886 and headquartered in Phoenix, APS serves approximately 1.3-1.4 million customers across 11 of Arizona's 15 counties, spanning more than 34,000 square miles and operating over 38,000 miles of power lines. The company owns and operates approximately 6.5 GW of generating capacity with a current mix of 36% nuclear, 32% coal, and 28% natural gas (with renewables layered in reaching 50% clean energy), anchored by Palo Verde Generating Station—the nation's largest producer of carbon-free electricity, whose licenses APS is seeking to extend to 2067. APS also operates a national-leading wildfire mitigation program, including nearly 40 AI-powered smoke-detection cameras (Pano AI partnership, expanding to 71), a network of 100+ weather stations, and 82 HD fire-monitoring cameras.

APS generates revenue primarily through regulated retail electricity sales under rate schedules approved by the Arizona Corporation Commission, with current rates last updated in 2021. The company filed for an approximate 14% average rate increase in 2026 (16% residential, up to 45% for data centers) while simultaneously seeking a formula rate system. Its product portfolio spans residential rate plans (Fixed Energy Charge, Time-of-Use 4-7pm, EV Overnight Charging, Saver Choice Plus), business service plans (E-30 through E-34), renewable energy options (Green Choice, Net Metering, Net Billing), energy assistance programs (Energy Support, Medical Care, Safety Net), and digital services (mobile app, AutoPay). Customers are segmented across residential, commercial and industrial, data centers/AI facilities, semiconductor manufacturing (TSMC Arizona), agricultural, and low-income/vulnerable populations.

APS is pursuing major expansion to address surging load growth: the planned 2,000 MW Desert Sun natural gas plant in Gila Bend, gigawatt-scale solar+storage PPAs (Avantus, Recurrent, BrightNight, Leeward), joint new-nuclear siting with SRP and TEP, and active targeting of hyperscale data center customers. The company faces material headwinds including the 2026 cancellation of a $1.8 billion DOE clean energy loan, the unanimous repeal of Arizona's Renewable Energy Standard by the Arizona Corporation Commission, and a $50M cut to energy efficiency program budgets. Strategically, APS is repositioning toward natural gas and nuclear capacity to meet data center demand while continuing renewable procurement through bilateral PPAs rather than regulatory mandate.

Name

Arizona Public Service

Legal name

Arizona Public Service

Website

https://aps.com

Company type

Public

Founded year

1886

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Arizona Public Service is a vertically integrated regulated electric utility serving 1.3-1.4 million customers across 11 Arizona counties, owned by Pinnacle West Capital (NYSE: PNW) and operating 6.5 GW of generation including the nation's largest nuclear plant, Palo Verde.

Ownership category

akta.pro rank

Product category

Regulated Electric Utility Services

NAICS

Electric Power Generation, Transmission and Distribution (2211), Electric Power Distribution (221122), Electric Power Generation (22111)

SIC

Electric Services (4911)

akta.pro primary industry

Public Power Districts & State/Provincial Utilities (EUADABAD)

Keywords

• Regulated electric utility
• Electricity generation transmission
• Renewable energy programs
• Residential commercial rates
• Grid modernization services

Headquarters

HQ city

Phoenix

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Operations, Supply Chain, Personnel, Technology or R&D, Marketing or Sales

Revenue model

1. Retail Electricity Sales: APS generates revenue through regulated retail electricity rates approved by the Arizona Corporation Commission. The utility serves approximately 1.3-1.4 million customers across central and southern Arizona with electricity generation, transmission, and distribution services. Revenues are derived from various rate schedules including residential, commercial, industrial, and agricultural customer classes.
2. Transmission Services: APS earns revenue from higher transmission revenues as part of its vertically integrated utility operations, supporting the grid infrastructure that delivers electricity across its service territory.

Pricing tiers

Go-to-market motion2 records

Distribution channels6 records

Marketing channels6 records

Core offering

Arizona Public Service is a regulated vertically integrated electric utility that generates, transmits, and distributes electricity to approximately 1.3–1.4 million residential and commercial customers across 11 of Arizona's 15 counties. The company offers residential and business electricity rate plans, renewable energy programs (Green Choice, Net Metering, Net Billing), energy-assistance programs (Energy Support, Medical Care, Safety Net), and digital self-service via the APS Mobile App and aps.com, all delivered through approximately 38,000+ miles of power lines and 6.5 GW of generating capacity including the Palo Verde Generating Station.

Product overview

Arizona Public Service is a vertically integrated electric utility offering a comprehensive portfolio of electricity generation, transmission, and distribution services to residential and commercial customers across Arizona. The product portfolio includes residential rate plans (Fixed Energy Charge, Time-of-Use, EV Overnight Charging, Saver Choice Plus), business service plans of various sizes, renewable energy options (Green Power Block Schedule, Green Power Percent Schedule, Net Metering, Net Billing), energy assistance programs (Energy Support, Medical Care, Safety Net), digital services (APS Mobile App, AutoPay, Payment Arrangements), and power generation infrastructure (including planned Desert Sun Power Plant).

Differentiator

Problem solved

Functional benefit

Products and services

• Residential Electricity Service Vertically integrated regulated electricity service delivering power generation, high-voltage transmission, and local distribution to over 1.3 million Arizona residential homes via APS's franchise territory and Arizona Corporation Commission-approved rate schedules.
• Business Electricity Service Commercial and industrial electricity service for Arizona businesses ranging from small commercial operations to extra-large industrial and data center customers, offered through dedicated business rate schedules (E-30 through E-34) and economic development partnerships.
• Green Choice Renewable Energy Program Optional renewable energy program enabling residential and business customers to support clean power generation by purchasing renewable energy in fixed blocks (Green Power Block Schedule GPS-1) or matching a percentage of their electricity usage with renewable sources (Green Power Percent Schedule GPS-2).
• Net Metering and Net Billing Programs (EPR-2, EPR-6, RCP) Export-rate programs for residential and commercial customers with distributed generation (rooftop solar) that allow them to receive credit for excess electricity exported back to the grid through Resource Comparison Proxy Export Rate (RCP), Renewable Energy Net Billing (EPR-2), and Renewable Energy Net Metering (EPR-6).
• Energy Support Program Bill-assistance program providing income-qualified customers (at or below 200% of federal poverty guidelines) with a 25% discount up to $95/month or 60% discount up to $165/month on their APS electricity bill based on household income and family size.
• Medical Care Program Specialized program for residential customers with life-threatening medical conditions or who depend on electricity-powered medical equipment, providing priority outage notifications and enhanced bill discounts (35% up to $95/month or 60% up to $165/month).
• Safety Net Program Customer-protection program allowing APS account holders to designate a trusted friend or relative to receive duplicate bill notifications and help prevent involuntary service disruptions for vulnerable customers.
• APS Mobile App Mobile application for iOS and Android devices that enables APS customers to pay bills, view real-time energy usage, report outages, enroll in programs, and manage their electricity account on mobile devices.
• AutoPay Service Automatic monthly bill payment service that deducts the customer's monthly electricity bill from their chosen payment method on the due date, paired with paperless billing options to reduce paper waste and simplify account management.
• Payment Arrangement Service Payment-plan service allowing customers to distribute outstanding past-due balances over equal monthly installments over a defined period, helping customers avoid service disconnection.

Quantifiable outcome

• AI cameras detect fires approximately 45 minutes faster than traditional 911 calls
• +5 more outcomes

Named customers6 records

Segments6 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability4 records

Feature5 records

Partnerships

Nine partnerships are on record, tiered major, minor and core.

• AvantusmajorStrategic or Co-development Partner · 7 March 2026Avantus secured $300+ million financing for Kitt Solar and Energy Storage Project in Pinal County, Arizona, featuring 100 MWac/130 MWdc solar paired with 400 MWh battery storage, under a power purchase agreement with Arizona Public Service.
• BrightNightmajorStrategic or Co-development Partner · 12 February 2026BrightNight broke ground on a 1,200 MWh solar-plus-storage project in Yuma County, Arizona, with commercial operations scheduled for April 2027, utilizing Fluence Energy's Gridstack Pro BESS solution with US-made components.
• FranklinWH Energy StorageminorStrategic or Co-development Partner · 14 January 2026FranklinWH is the first home energy storage provider to participate in both SRP's Battery Partner Program and APS's Storage Rewards Pilot. Homeowners with FranklinWH systems can receive financial incentives for helping utilities manage electricity demand during peak periods while keeping homes powered during outages.
• Recurrent EnergymajorStrategic or Co-development Partner · 22 October 2025Recurrent Energy secured $825 million financing for Desert Bloom Storage (600 MWh BESS) and Papago Solar (150 MW) projects in Maricopa County, Arizona, as part of partnership with Arizona Public Service with operations expected in 2026.
• Pano AIcoreTechnology or Integration · 4 May 2025Pano AI provides AI-powered smoke-detection cameras to APS for early wildfire detection. The cameras detect fires approximately 45 minutes faster than traditional 911 calls and have helped contain blazes before spreading beyond 7 acres. APS operates nearly 40 cameras with plans to expand to 71.
• Arizona Corporation CommissioncoreOthersAPS operates under regulatory oversight of the Arizona Corporation Commission, which approves rate schedules and service terms. The commission is currently evaluating APS's request for a 14% average rate increase and formula rate system.
• Palo Verde Generating StationcoreOthersAPS owns and operates Palo Verde Generating Station, the nation's largest producer of carbon-free electricity, which provides approximately 36% of APS's generation capacity and supports Arizona's electricity needs.
• Salt River Project (SRP)majorStrategic or Co-development PartnerAPS, SRP, and Tucson Electric Power jointly awarded grants to five organizations serving communities impacted by the transition away from coal-fired power plants through the Utility Grant Funding Program, with combined $1 million pledge since 2023.
• Tucson Electric Power (TEP)majorStrategic or Co-development PartnerAPS, SRP, and TEP jointly explore new nuclear generation for Arizona through preliminary siting studies, with the three utilities filing for $25 million to fund a three-year site selection process for a new nuclear power plant.

Scale indicators12 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• Duke Energy: One of the largest U.S. investor-owned electric utilities serving the Carolinas, Florida, Midwest, and other states. Comparable as a multi-state regulated vertically integrated utility with coal-to-clean transition challenges, data center load growth, and major nuclear assets.
• Southern Company: Major U.S. investor-owned utility holding company serving the Southeast. Comparable as a vertically integrated regulated utility with significant nuclear generation (Vogtle), large data center load growth in its service territory, and aggressive clean energy transition.
• NextEra Energy: Largest U.S. renewable energy generator and parent of Florida Power & Light. Comparable as a regulated utility (FPL) plus competitive renewables arm (Energy Resources), with major investments in solar-plus-storage PPAs similar to APS's partner projects (Avantus, Recurrent, BrightNight).
• Pacific Gas and Electric Company (PG&E): Large investor-owned vertically integrated California utility. Comparable in scale, regulated rate-base model, vertically integrated generation/transmission/distribution, AI wildfire detection (similar Pano AI deployment), and exposure to clean energy mandates and wildfire liability.
• Xcel Energy: Multi-state regulated utility with leading renewable portfolio targets and broad service territory across the western and central U.S. Comparable in terms of vertically integrated operations, clean energy transition strategy, and data center load growth exposure.
• Southern California Edison (SCE): Major California investor-owned utility operating a vertically integrated generation and distribution network. Comparable as a large regulated utility with significant renewable portfolio requirements, wildfire mitigation programs, and regulatory cost-recovery dynamics similar to APS.
• Public Service Enterprise Group (PSEG): New Jersey-based regulated utility holding company with nuclear generation assets. Comparable in regulated vertically integrated structure, large nuclear baseload (similar to Palo Verde), clean energy transition challenges, and emphasis on grid resilience.

Direct peers

• Salt River Project (SRP): Arizona's other large electric utility serving the Phoenix metropolitan area. Comparable as a vertically integrated Arizona electric utility with overlapping service territory, joint clean energy initiatives (Storage Rewards Pilot, Utility Grant Funding), and similar customer demographics.
• Pinnacle West Capital Corporation: APS's publicly-traded parent company (NYSE: PNW), a utility holding company whose principal operations are APS's regulated electric service. Most directly comparable as it consolidates APS's earnings, generation portfolio, and Arizona regulatory exposure.
• Tucson Electric Power (TEP): Arizona's third major investor-owned electric utility serving southern Arizona. Direct peer in terms of Arizona regulatory environment, joint nuclear siting studies, and shared Utility Grant Funding programs.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/apsfyi
• YouTubeyoutube.com/user/arizonapublicservice
• Facebookfacebook.com/apsfyi
• LinkedInlinkedin.com/company/arizona-public-service-aps-
• Instagraminstagram.com/apsfyi

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds3 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Arizona Public Service