Pinal Electrical Improvement Project

Boys loading the dishwasher


Voltage – 69kV and 230kV
Estimated completion date – Q1 2025
Location – Arizona, Pinal County

Project Need

To meet the expanding energy needs of more people and businesses throughout the Casa Grande area, we are looking to upgrade our system. We have started studies to determine appropriate routes for three new transmission lines and two new substations in the Pinal County area. These facilities will connect with existing transmission infrastructure and include 230kV and 69kV facilities. We are working to identify locations for the new lines to best meet the needs of our customers and the community.

Below is an example of the types of structures we are proposing:

Schematic of 69kV and 230kV poles

Proposed Map Route

Pinal Project map

Public Open House

We want your input. Please join our project team at our in-person public open house on Tuesday, April 16 and Thursday, April 18, from 5:00-7:00 p.m. at the Pinal County Fairgrounds, located at 512 S. Eleven Mile Corner Road Casa Grande, AZ 85194 (map). You will have the chance to learn more about the project and submit any questions or concerns.

Virtual Open House

You can also attend our virtual open house at any time online at PinalOpenHouse.com to learn more about the project. You will be able to provide input and talk to those working on the project. If you cannot access the webpage, you can request a hard copy of the open house materials.

Please provide any input by May 17, 2024, to allow timely review and consideration during the siting process.

For more information:
Project information phone line: (520) 482-2818
Project email: PinalProject@aps.com
Lupe Martinez, Siting Consultant
Arizona Public Service
2121 West Cheryl Drive
Mail Station 3293
Phoenix, AZ 85021

How power gets to you

The illustration below shows how energy is delivered to you, including how it is generated, transmitted long distances and finally distributed to your homes and businesses.

How electricity gets to you diagram

Thank you for providing valuable input that helps us serve your area with safe and reliable energy now and into the future. 

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