Pending Changes - Reports

Details of proposed changes to IESO systems and reports being revised for the current release are available here. Each release includes a preliminary, target and final plan—posted according to the IT Release Schedule. A yellow box indicates that the plan is not published for this release.

Preliminary Release Plan

Target Release Plan

Final Release Plan

The list below provides details on proposed changes to IESO Reports.

Status Report Name Doc ID Last
Updated 		Schema Sample* Help/
Explanation 		Target
Implementation
Updated Adequacy Report
 Adequacy3 01/05/2025
 No Change PUB_Adequacy3_202511112.xml
 Adequacy3_h2.pdf

 04/03/2026
Updated Realtime 5-minute Ontario Zonal Energy Price Report RealtimeOntarioZonalPrice 01/05/2025 RealtimeOntarioZonalPrice_r2.xsd PUB_RealtimeOntarioZonalPrice_2025111408.xml
 No Change to help file. This change updates the
report schema file format to align with the structure used in other 5-minute real-time reports by including the DeliveryHour and Interval tags.		 04/03/2026
New Day-Ahead Hourly Intertie Energy Pass 1 LMP Report DAHourlyIntertiePass1LMP DAHourlyIntertiePass1LMP_r1.xsd PUB_DAHourlyIntertiePass1LMP_20251112_v1.xml This report contains final day-ahead hourly intertie energy locational marginal prices (LMP) from the Pass 1 pricing algorithm of the DAM calculation engine and its components for all Intertie Pricing Locations after the successful execution and validation of the DAM calculation engine run. It is intended to provide more clarity on the LMPs associated with intertie schedules in Pass 1 04/03/2026
New Day-Ahead Hourly Intertie Operating Reserve Pass 1 LMP Report DAHourlyIntertiePass1ORLMP DAHourlyIntertiePass1ORLMP_r1.xsd
 PUB_DAHourlyIntertiePass1ORLMP_20251113_v1.xml
 This report contains final day-ahead hourly intertie operating reserve locational marginal prices (LMP) from the Pass 1 pricing algorithm of the Day-Ahead Market (DAM) calculation engine for every Intertie Pricing Location and operating reserve product after the successful run of the DAM calculation engine. It is intended to provide more clarity on the LMPs associated with intertie schedules in Pass 1. 04/03/2026

*To view the source of the sample XML, open the XML in a browser by clicking on the link, then right click in window and select view source.

Legend:

Preliminary - Indicates that a report is posted for comments

Target - Indicates that the XML schema is under change control

Notes: Sample and help files will not be placed under change control and may be subject to updates. The sample data is provided for illustrative purposes only and not intended to represent actual operational data.