Peoria County Reliability Project

Ameren Illinois is proposing the Peoria County Reliability Project to improve energy reliability for local customers in the Peoria County area. This Project includes the construction of a new, 138 kV transmission line to connect the existing Alta substation in Peoria County, Illinois to the existing Pioneer substation in the City of Peoria. Ameren will utilize direct embed steel poles with concrete backfill on the new line. Our goal is to have this new line in service and providing benefits to the local community by December 2025.


Project Overview

Routing & Public Process

Public and Stakeholder Involvement

Our project team gathered and reviewed data from community members, landowners, and stakeholders in the area during different stages of the Project. Our first phase of engagement was September 13 – September 26, 2022, to gather input on the Route Segments. All input received was reviewed and considered during the development of the Preliminary Route Alternatives. Our second phase of engagement was November 14 – November 27, 2022, and to gather input on the Preliminary Route Alternatives. All comments collected were reviewed and considered by the project team during the development of the selected and filed Final Route. We appreciate everyone’s participation during each phase of engagement.

Join our project email list to receive updates on the project. If you were unable to participate in any of the phases of engagement – connect with our project team today.

Community Benefits

As we continue to serve and invest in our communities, new projects — like the Peoria County Reliability Project – allow us to continue supporting the needs of our customers in your area.

  • Improves local energy reliability by creating additional pathways to support current and future energy needs
  • Helps minimize power outage impacts to the local communities
  • Supports expansion needed for continued area growth
  • Upgrades aging substations

Next Steps

On February 24, 2023, Ameren Illinois submitted an application to the Illinois Commerce Commission (ICC) for a Certificate of Public Convenience and Necessity (CPCN) for the Peoria County Reliability Project.

The expected timing for a decision is mid-to-late 2023. If approved, easement negotiations will begin with affected landowners in late-2023 with construction anticipated to start in Spring 2024. Landowners of record whose property is crossed by the Final Route will receive a mailed notification letter from our project team and the ICC.

For more information on the ICC Filing visit icc.illinois.gov/docket and enter 23-0162 in the search box.


Project Schedule 

2022: Data Collection and Design

  • Gather public, stakeholder and agency input
  • Final route(s) identified
  • File final route(s) with Illinois Commerce Commission (ICC)

2023: Surveys and Real Estate

  • Certificate of Public Convenience and Necessity (CPCN) decision
  • Engineering and permitting
  • Environmental surveys and permitting
  • Easement acquisition process

2024: Preconstruction and Construction

  • Preconstruction activities
  • Construction begins

2025: Construction

  • Project in Service 

*All items shown are pending regulatory approvals. Schedule is subject to change.

Project Maps

Interactive Project Area Map

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Peoria County Project Maps

For a high-level overview of the Peoria County Reliability Project, view the PDFs below.

Final Route - February 2023 (PDF)

Preliminary Route Alternatives - November 2022 (PDF)

Route Segments - September 2022 (PDF)

Study Area – July 2022 (PDF)

Have a question for our team?

By phone:


By Mail:

Ameren Illinois Pioneer Park Operating Center
Attn: Peoria County Reliability Project
8420 N. University Street
Peoria, IL 61615

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