Illinois Developer Resources
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.
These resources are not currently available for Missouri customers.
Portals & Tools
PowerClerk Portal
New applications for Distributed Energy Resources can be created and submitted through PowerClerk.
Renewables Portal
Portal for owners of renewable generation.
Hosting Capacity Maps
Find available capacity and potential locations.
Public Facing Queue
View interconnection queue information for Distributed Generation or Storage Resource Projects.
Interconnection Options
Compensation Options
Solar Signage
Need description copy to accompany new video.
Program Guides & Resources
PowerClerk
Community Solar
Renewables Portal
- DER Bulletin 2025-1 (PDF)
Ameren Illinois One-Line and Site Plan Requirements for Behind the Meter Projects with Nameplate Capacity of 200 kW and Above and All Remotely Located Generation - DER Bulletin 2024-2 (PDF)
Illinois Admin Code Part 466 Level 2 Supplemental Reviews – One Time Downsize Option Timeline - DER Bulletin 2024-1 (PDF)
Line (Supply) Side Taps – Service Rated Connectors - DER Bulletin 2023-1 (PDF)
Microgrid Forming / Energy Storage System with Critical Loads / Backup Panel and Line (Supply) Side Taps
- Installer Certification (PDF)
- Certificate of Completion (PDF)
- DER Checklist and Reference Guide (PDF)
- Interconnection Applications Tool
For Pre-Applications, Level 1 (up to 25kW) and Level 2 (over 25kW – less than 10MW) applications - Standard Distribution Generation Interconnection Agreement (PDF)
- FAQs and more Interconnection information (PDF)
Provided as part of an Illinois Commerce Commission Staff-initiated workshop - Ameren Illinois DER Witness Test Criteria (PDF)
- Ameren Illinois DER Interconnection Policy Public Facing Guide (PDF)
- BTM Production Metering Requirements (PDF)
SCADA metering requirements for behind the meter DER 200kW and greater - Blank W-9 Form (PDF)
For detailed requirements for larger projects (anything >200kW and any remote located generation), please reference these documents:
- One-Line / Site Plan Requirements – Behind the Meter 200kW and Greater (PDF)
- One-Line / Site Plan Requirements – Remotely Located Generation (PDF)