Illinois Statewide Technical Reference Manual
The Illinois Technical Reference Manual (IL-TRM) is updated on an annual basis. Version 7.0 was approved by the Illinois Commerce Commission in December 2018. Click here to access the IL-TRM Version 8.0 page.
Participation in IL-TRM Update Process
Vendor Participation Policy (posted March 26, 2018)
A conflict of interest is present when a Product Representative, in the judgment of the IL-TRM Administrator, has a financial stake in a discussion topic and participation by the Product Representative could have adverse consequences, such as hindering complete and frank discussions. To prevent conflicts of interest, financially-interested Product Representatives will not participate in the IL-TRM Version 7.0 measure selection, IL-TRM Technical Advisory Committee (TAC) meetings or the consensus process, unless invited to participate in the IL-TRM TAC of the SAG by the IL-TRM Administrator. The IL-TRM Administrator will honor reasonable requests from utilities to invite Product Representatives to present factual information or to answer questions on a specific measure under discussion for inclusion in the annual TRM update.
IL-TRM Request Tracker
There is a structured process at the beginning of each IL-TRM update cycle for participants to submit new measures and changes to existing measures. The deadline for measure requests for IL-TRM Version 8.0 will be in February 2019. Participants may also submit measure requests to the IL-TRM Request Tracker on SharePoint throughout the year. Measure requests submitted past the deadline for annual IL-TRM updates may not be considered until the next update cycle.
Current Workpaper Template
Illinois Net-to-Gross Methods
IL-TRM Errata Documents
There is a separate page for each version of the Illinois Statewide Technical Reference Manual (IL-TRM). Click on the links below for more information:
The links below include final versions of the IL-TRM and associated errata, beginning with the most recently completed (Version 6.0):
Policies regarding the TRM and its application, deviation, and updating process:
ICC Dockets related to approval of IL-TRM
Load Shape References
Sources and References Documents (Final Version 3.0)
Residential Measure References (zip files):
Other reference files (zip files):