Construction Resources

Our customers, builders and developers are crucial to the growth and prosperity of our communities. That’s why we offer support for your project from beginning to end.

Start a Service Request

Take the following steps to request new electric or gas service, upgrades, relocates, removals, lighting, or temporary services.

Start Request (PDF)

Start a Service Request

Take the following steps to request new electric or gas service, upgrades, relocates, removals, lighting, or temporary services.

Start Request

Illinois Electric Resources

Missouri Electric Resources

Electric Service Manual

Ameren is committed to providing a quality reference guide that facilitates the planning and installation of electrical equipment in a safe and professional manner. This manual serves as a supplement and is not a replacement for the National Electrical Code, National Electrical Safety Code, and any local authority guidelines. To stay informed on any changes to these resources, sign up for updates here.

Electric Service Manual (PDF)

Approved Metering Equipment (PDF)

2019 Approved Metering Equipment (PDF)

Previously approved to be purchased and installed until 12/31/2025.

Meter Collar Adaptor Approved Vendor Equipment (PDF)

Approved models and vendors as of 10/21/2025.

Electric Service Manual Information Updates Training (PDF)

Learn about updates to the Electric Service Manual effective 11/1/2022.

Electric Service Guidelines (PDF)

Non-residential requirements and costs for electric service

Electric Load Sheet (PDF)

Non-residential electric load form

Conduit Specifications (PDF)

Non-residential customer-installed conduit specifications

Subdivision Standards (PDF)

Residential subdivision standards and qualifications.

Customer DER in Parallel with Ameren Missouri Distribution System (PDF)

Overhead Electric (PDF)

Underground Electric (PDF)

Non-Residential Electric Specifications (PDF)

Residential Subdivisions Specifications (PDF)

Ameren Approved Interconnect Safety Transfer Switches List (PDF)

Backup Emergency Generator Connection Request (PDF)

2019 Approved Metering Equipment - Valid Thru 12/31/2025 (PDF)

Resources for Renewable Energy Developers

Ameren Illinois has created a one-stop shop for Renewable Energy Developers to obtain all of the information they need to begin and complete a project. From what you need to develop an individual residential project, to Community Solar, and all the way up to a large industrial project.

Developer Resources

Ameren Approved Switchboards

Illinois Natural Gas Resources

Natural gas is a clean, efficient and low-cost form of energy that has many advantages over propane and other fuels. If you choose natural gas, you can count on a steady supply to keep you comfortable at less cost throughout the winter.

Natural Gas Load Form (PDF)

Non-Residential natural gas load form

Natural Gas Load Form (PDF)

Requirements for natural gas installation

Natural Gas Generator Installation Pre-Authorization Form (PDF)

Request an upgrade to an Ameren Illinois Natural Gas meter

Excess Flow Valves

Find information on natural gas safety valves.