Commonwealth Edison Technical Standards

ComEd Engineering and Construction Approved Service Providers

Project Developers need to contact ComEd directly to validate the accuracy of the approved contractor listing as qualifications are subject to change.

Approved Contractor List PDF   5.23.2023
Approved GeoTech Vendors PDF   5.23.2023
Approved Substation Contractor List PDF   4.27.2023

Exelon Transmission Facility Interconnection Requirements PDF
Exelon Utilities Transmission Bus Configuration Design Philosophy PDF   5.19.2021
ComEd Interconnection Guidelines PDF  12.16.2021

The ComEd and PECO Transmission Facility Connection Document addresses the requirements for the interconnection to the transmission system within both the ComEd service territory in Illinois and the PECO service territory in Pennsylvania in line with the requirements of NERC Reliability Standard FAC-001. Additional Company standards/requirements as necessary to address site specific interconnection issues are available to the interconnecting customer upon request at any point during the interconnection process.

Requests for interconnection to the ComEd/PECO distribution system are addressed in documentation that is available on the respective Company websites which may be accessed via the Exelon website.