UPDATE – As part of the IESO’s ongoing commitment to the Accessibility for Ontarians with Disabilities Act (AODA), revised versions of the technical documents will be published in an accessible format. Please note that any documents updated for AODA requirements do not have content changes. An AODA baseline plan will be published on the Pending Changes webpage, and updated regularly.
Upcoming changes to these interfaces are listed on the
Pending Changes - Documents and Pending Changes - Reports pages.
Procedural information for each function is included in the
Market Rules & Manuals Library.
Retrofit System
Retrofit API Specification SPEC-188
The purpose of this document is to provide the design specification for the Retrofit System Application Programing Interface (API) web service.
|
| Last Updated |
Sep 6, 2023 |
| Document |
pdf
|
Retrofit Service Provider API - SPEC-232
The purpose of this document is to provide the design specification for the Retrofit System Service Provider Application Programing Interface (API) web service.
Updated Document
- Issued for Baseline 52.1 on December 4, 2024. |
| Last Updated |
Dec 4, 2024 |
| Document |
pdf
|
Commercial Reconciliation
Format Specifications for Settlement Statement Files and Data Files (IMP_SPEC_0005)
This Technical Interface document describes the format of settlement statement files and supporting data files.
Updated Document
- Issued for Baseline 52.1 on December 4, 2024.
|
| Last Updated |
Dec 4, 2024 |
| Document |
pdf
|
Format Specification for Capacity Auction Settlement Data Files (SPEC-142)
The file format specification deals with the data file report that a CA customer may receive.
|
| Last Updated |
May 1, 2023 |
| Document |
pdf
|
Participant Transmission Tariff Data Files (IMP_SPEC_0006)
This file format specification deals with the data file that a Transmission Customer may use for the purpose of validating the energy measurements used by the IESO to determine transmission tariff billing demands.
|
| Last Updated |
May 1, 2023 |
| Document |
pdf
|
Transmitter Transmission Tariff Data Files (IMP_SPEC_0007)
This file format specification deals with the data file that the Ontario transmitters may use for the Purpose of validating the energy measurements Used by the IESO to determine transmission tariff billing demands.
|
| Last Updated |
May 1, 2023 |
| Document |
pdf
|
Transmitter Reconciliation Data File (IMP_SPEC_0008)
This file format specification deals with the data file required to enable the Ontario transmitters to reconcile the bases for transmission tariff credits.
|
| Last Updated |
May 1, 2023 |
| Document |
pdf
|
Transmission Tariff Peak System Demand Data Report (IMP_REP_0016)
The Peak System Demand Data Report provides the sum of the hourly measurements across all delivery points defined for transmission network charges for each Trading Date / Hour in the reporting month.
|
| Last Updated |
Sep 12, 2012 |
| Document |
pdf
|
IESO Charge Types and Equations (IMP_LST_0001)
This document enumerates the various charge types and equations used in the IESO Settlements process for IESO-Administered markets which are subject to a functional deferral and those that are NOT subject to a functional deferral.
Updated Document
- Issued for Baseline 52.1 on December 4, 2024.
|
| Last Updated |
Sep 11, 2024 |
| Document |
pdf
|
Physical Market Preliminary Statements
Published on the 10th Business day for each trading day.
|
| Last Updated |
Dec 10, 2008 |
| Sample |
txt
|
Physical Market Final Statements
Published on the 20th Business day for each trading day.
|
| Last Updated |
Dec 10, 2008 |
| Sample |
txt
|
Physical Market Preliminary data file
Published on the 10th Business day for each trading day.
|
| Last Updated |
Jun 9, 2006 |
| Sample |
txt
|
Physical Market Final data file
Published on the 20th Business day for each trading day.
|
| Last Updated |
Jun 9, 2006 |
| Sample |
txt
|
Financial Market Preliminary Statements
Published on the 2nd Business day for each trading day.
|
| Last Updated |
Nov 20, 2000 |
| Sample |
txt
|
Financial Market Final Statements
Published on the 6th Business day for each trading day.
|
| Last Updated |
Nov 20, 2000 |
| Sample |
txt
|
Participant Transmission Tariff Data Files
Sample of the Transmission Tariff related data files published to market participants and transmitters for reconciliation of Transmission Tariff related charges. These are Published with Preliminary information on the 10th business day after the month end trade date to be followed by a Final edition on the 20th business day.
|
| Last Updated |
Jun 4, 2003 |
| Sample |
txt
|
Transmitter Transmission Tariff Data File
Sample of the Transmission Tariff related data files published to market participants and transmitters for reconciliation of Transmission Tariff related charges. These are Published with Preliminary information on the 10th business day after the month end trade date to be followed by a Final edition on the 20th business day.
|
| Last Updated |
Jun 4, 2003 |
| Sample |
txt
|
Transmitter Reconciliation Data File
Sample of the Transmission Tariff related data files published to market participants and transmitters for reconciliation of Transmission Tariff related charges. These are Published with Preliminary information on the 10th business day after the month end trade date to be followed by a Final edition on the 20th business day.
|
| Last Updated |
Nov 22, 2004 |
| Sample |
txt
|
Transmission Tariff Peak System Demand Report
Sample of the Transmission Tariff related data files published to market participants and transmitters for reconciliation of Transmission Tariff related charges. These are Published with Preliminary information on the 10th business day after the month end trade date to be followed by a Final edition on the 20th business day.
|
| Last Updated |
Nov 11, 2004 |
| Sample |
htm
|
Dispatch Service System
Dispatch Notification Service Web Service Design Specifications (SPEC-155)
This design specification provides market participants with the details of the Dispatch Notification Service Web Service and all its operations. The Dispatch Notification Service system is hosted by the market participant for receiving automated push notifications of new Dispatch Instructions from the IESO.
|
| Last Updated |
Oct 12, 2021 |
| Document |
pdf
|
Dispatch Service Web Service Design Specifications (SPEC-154)
This Design Specification provides market participants with details of the Dispatch Service Web Service and all its operations. The Dispatch Service Web Service can be used by the market participant for retrieving and responding to Dispatch Instructions from the IESO.
|
| Last Updated |
Oct 12, 2021 |
| Document |
pdf
|
Funds Administration
Text Invoice File Format Report Format (IMP_REP_0049)
This document describes the formats of the Market Participant invoices.
|
| Last Updated |
Nov 27, 2020 |
| Document |
pdf
|
Financial Market Invoices (Accessed via the IESO Reports Site)
This sample of a Financial Market Invoice produced for participating Market Participants for each Financial Market Billing cycle. The invoice details the credits an debits for the market participant on a charge type basis.
|
| Last Updated |
Mar 3, 2016 |
| Report Period |
Billing Period |
| Sample |
xml
|
Statements of Activity
This sample of the monthly Statement of Activity, published for market participants, summarizes all invoice and payment activity for the month.
|
| Last Updated |
Mar 3, 2016 |
| Publishing Frequency |
Monthly |
| Report Period |
Calendar Month |
| Sample |
xml
|
Physical Market Invoices (Accessed via the IESO Reports Site)
This sample of a Physical Market Invoice produced for participating Market Participants for each Physical Market Billing cycle. The invoice details the credits an debits for the market participant on a charge type basis.
|
| Last Updated |
Mar 3, 2016 |
| Report Period |
Billing Period |
| Sample |
xml
|
IESO Reports API Guide
Access Interfaces for Confidential Reports
This document presents and describes the application programming interface (API) and SFTP for automating retrieval of confidential reports published by the IESO.
|
| Last Updated |
Oct 23, 2024 |
| Document |
pdf
|
Market Participant Requests
Four Hour Predispatch Operating Reserve Market Information Report
This report is identical in structure to the Operating Reserve Predispatch Report (MP specific). It will only contain predispatch results for the next 4 hours and will be produced before the same report for the full predispatch timeframe. When the 4 hour period crosses a day boundary, a separate report will be generated for each day.
|
| Last Updated |
Dec 21, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Energy (Bid) Summary
This template is used to provide a market participant with a summary of their resources for which there are active bids.
|
| Last Updated |
Oct 12, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Schedules (Bid) Summary
This template is used to provide a market participant with a summary of their resources for which there are active schedules.
|
| Last Updated |
Oct 12, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Bilateral Contract (Bid) Summary
This template is used to provide a market participant with a summary of their resources for which there are active bilateral contracts.
|
| Last Updated |
Nov 21, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Predispatch Report
This report provides pre-dispatch energy schedule information for each hour of the forecast period
|
| Last Updated |
Sep 26, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Dispatch Constrained Hourly Report (IESO_TPL_0035)
This report contains energy dispatch schedules for each 5-minute interval of a particular hour.
|
| Last Updated |
Jun 5, 2006 |
| Sample |
txt
|
| Template |
pdf
|
Physical Market Dispatch Unconstrained Hourly Report
This report contains the energy Market Schedule for each 5-minute interval of a particular hour; i.e., the dispatch schedule in the absence of system constraints
|
| Last Updated |
Dec 21, 2001 |
| Template |
pdf
|
Physical Market Dispatch 5-minute Report (IESO_TPL_0033)
This 5-Minute Dispatch Schedule Report contains preliminary information on facility dispatch schedules for a particular 5-minute scheduling interval. These schedules are subject to change.
|
| Last Updated |
Jun 5, 2006 |
| Sample |
txt
|
| Template |
pdf
|
Operating Reserve Predispatch Report
This template is used to retrieve Operating Reserve Offer/Bid data.
|
| Last Updated |
Sep 26, 2001 |
| Template |
pdf
|
Operating Reserve Dispatch Constrained Hourly Report (IESO_TPL_0036)
This report contains dispatch schedules for Operating Reserve for each 5-minute interval of a particular hour.
|
| Last Updated |
Jun 5, 2006 |
| Sample |
txt
|
| Template |
pdf
|
Operating Reserve Dispatch Unconstrained Report
This report contains the Operating Reserve Market Schedule for each 5-minute interval of a particular hour; i.e., the dispatch schedule in the absence of system constraints.
|
| Last Updated |
Dec 21, 2001 |
| Template |
pdf
|
Operating Reserve Dispatch 5-minute Report (IESO_TPL_0034)
This 5-Minute Dispatch Schedule Report contains preliminary information on facility dispatch schedules for a particular 5-minute scheduling interval. These schedules are subject to change.
|
| Last Updated |
Jun 5, 2006 |
| Sample |
txt
|
| Template |
pdf
|
Operating Reserve (Bid) Summary
This template is used to provide a market participant with a summary of their resources for which there are active Operating Resource bids.
|
| Last Updated |
Sep 26, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Four Hour Predispatch Energy Market Information Report
This report is identical in structure to the Physical Market Predispatch Report (MP specific). It will only contain predispatch results for the next 4 hours and will be produced before the same report for the full predispatch timeframe. When the 4 hour period crosses a day boundary, a separate report will be generated for each day.
|
| Last Updated |
Dec 21, 2001 |
| Sample |
txt
|
| Template |
pdf
|
Market Participant Submissions (incl. MIM, EMI & API)
Market Participant Client Platform Information Technology Standard (IESO_ISTD_0017)
This document is intended to clearly and concisely present the standards and guidelines for the upgrade of the Market Participant Client Platform.
|
| Last Updated |
Mar 5, 2007 |
| Document |
pdf
|
Market Information Management Application Interface (Web Services)
This signed IESO MIM Web Services provides the programmatic API to submit/download MIM data using SOAP based web services. This version of the API requires two part of authentication: UserID/Password and whitelisted client machine IP address.
Quick Reference Guide
|
| Last Updated |
Aug 11, 2016 |
| Document |
zip
WSDL
XSD
|
Market Results
Multi-Interval Optimization, Functional Requirements (IMO_REQ_0048)
This document defines the functional requirements and current settings for Multi-Interval Optimization.
|
| Last Updated |
Jun 1, 2005 |
| Document |
pdf
|
Operating Reserve Predispatch Unconstrained Report for OR in the Market
This report provides unconstrained pre-dispatch Operating Reserve schedule information for OR in the Market.
|
| Last Updated |
Jul 25, 2003 |
| Publishing Frequency |
Hourly |
| Report Period |
Dispatch Day |
| Sample |
csv
|
| Template |
pdf
|
Operating Reserve Predispatch Constrained Report for OR in the Market
This report provides constrained pre-dispatch Operating Reserve schedule information for OR in the Market.
|
| Last Updated |
Jul 25, 2003 |
| Publishing Frequency |
Hourly |
| Report Period |
Dispatch Day |
| Sample |
csv
|
| Template |
pdf
|
Operating Reserve Dispatch Constrained Hourly Report for OR in the Market
This report contains dispatch schedules for Operating Reserve in the Market for each 5-minute interval of a particular hour.
|
| Last Updated |
Jul 25, 2003 |
| Publishing Frequency |
Hourly |
| Report Period |
Dispatch Hour |
| Sample |
csv
|
| Template |
pdf
|
Operating Reserve Dispatch Unconstrained Report for OR in the Market
This report contains the Operating Reserve Market Schedule for each 5-minute interval of a particular hour for OR in the market; i.e., the dispatch schedule in the absence of system constraints.
|
| Last Updated |
Jul 25, 2003 |
| Publishing Frequency |
Hourly |
| Report Period |
Dispatch Hour |
| Sample |
csv
|
| Template |
pdf
|
Predispatch Unconstrained Energy Price Report
This report provides market clearing price (MCP) energy and Operating Reserve for all zones for each hour of the forecast period
|
| Last Updated |
Dec 21, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Unconstrained Energy Price Report
This report provides the Market Clearing Price for energy and Operating Reserve, for all zones, for each 5 minute interval of the hour.
|
| Last Updated |
Dec 21, 2001 |
| Sample |
csv
|
| Template |
pdf
|
Predispatch Unconstrained Totals Report
This report provides a forecast of expected load, available energy, Operating Reserve requirements, and losses for each hour of the forecast period as established by the unconstrained predispatch run of the algorithm.
|
| Last Updated |
Sep 26, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Predispatch Constrained Totals Report (IESO_TPL_0045)
This report provides a forecast of expected load, available energy, Operating Reserve requirements, and losses for each hour of the forecast period as established by the constrained predispatch run of the algorithm.
|
| Last Updated |
Mar 7, 2007 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Unconstrained Totals Report (IESO_TPL_0046)
This report provides the total energy and Operating Reserve scheduled as well as the market demand as established by the unconstrained dispatch run of the algorithm, for each 5 minute interval of the hour.
|
| Last Updated |
Mar 7, 2007 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Area Operating Reserve Shortfalls
This report contains Operating Reserve shortfalls, in five-minute intervals, for the previous dispatch hour for each dispatch area.
|
| Last Updated |
Apr 9, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
htm
csv
|
Dispatch Area Operating Reserve and Energy Called from Operating Reserve
This report contains both scheduled and utilized Operating Reserve for the previous dispatch hour, by dispatch area.
|
| Last Updated |
Sep 10, 2003 |
| Publishing Frequency |
Hourly |
| Sample |
html
csv
|
Predispatch Area Operating Reserve Shortfalls
This report contains Operating Reserve shortfalls in each hour for a pre-dispatch day, by dispatch area.
|
| Last Updated |
Apr 9, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
htm
csv
|
Dispatch Constrained Totals Report
This report provides the total energy and Operating Reserve scheduled as well as the market demand as established by the constrained dispatch run of the algorithm, for each 5 minute interval of the hour.
|
| Last Updated |
Mar 27, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
Predispatch Unconstrained Regional Constraints Report
This report contains the intertie scheduling limits used as inputs to the unconstrained run of the predispatch algorithm.
|
| Last Updated |
Sep 26, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Predispatch Constrained Regional Constraints Report
This report contains the area Operating Reserve constraints and intertie scheduling limits used as inputs to the constrained run of the predispatch algorithm.
|
| Last Updated |
Sep 26, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Unconstrained Regional Constraints Report
This report contains the intertie scheduling limits between Ontario and neighbouring control areas produced by the real time unconstrained run of the algorithm, for each 5 minute interval of the hour.
|
| Last Updated |
Dec 21, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Constrained Regional Constraints Report
This report contains the intertie scheduling limits between Ontario and neighbouring control areas and the internal Operating Reserve Constraints produced by the real time constrained run of the algorithm, for each 5 minute interval of the hour.
|
| Last Updated |
Dec 21, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Predispatch Security Constraints Report (IMO_TPL_0017)
This report contains a list of binding security constraints for the predispatch run of the algorithm.
|
| Last Updated |
Dec 5, 2002 |
| Sample |
html
csv
|
| Template |
pdf
|
Dispatch Security Constraints Report (IMO_TPL_0018)
This report contains a list of binding security constraints for the dispatch run of the algorithm, for each 5 minute interval of the hour.
|
| Last Updated |
Dec 5, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
html
csv
|
| Template |
pdf
|
Predispatch Constrained Shadow Prices Report
This report contains pre-dispatch Shadow Prices at selected nodes within Ontario.
|
| Last Updated |
Mar 11, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Constrained Shadow Prices Report
This report contains dispatch Shadow Prices at selected nodes within Ontario, for each 5 minute interval of the hour.
|
| Last Updated |
Mar 11, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Unconstrained Energy HOEP Price Report
This report displays the Hourly Ontario Energy Price for each preceding hour of the day.
|
| Last Updated |
Dec 21, 2001 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Unconstrained Price Disaggregation Report
This report provides each 5-minute price disaggregated for both Energy and Operating Reserve for all zones for each preceding hour of the day.
|
| Last Updated |
Jan 24, 2002 |
| Publishing Frequency |
Hourly |
| Sample |
csv
|
| Template |
pdf
|
Dispatch Deviation Monthly Report
Subject to Market Rule, Ch. 7, sec. 4.2.2 and sec 4.2.3 this report summarizes the number of occurrences where the IESO has deviated significantly from the results of the dispatch algorithm, the action taken and the rationale for doing so. An occurrence may cover one or more intervals and all occurrences recorded in the IESO Shift Operations log are considered significant.
|
| Last Updated |
Jul 4, 2002 |
| Publishing Frequency |
Monthly |
| Sample |
html
|
Intertie Schedules and Flow Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the Intertie Schedules and Flow report. Refer also to shared schemas.
|
| Last Updated |
Oct 3, 2003 |
| Sample |
xsd
|
Generator Output and Capability Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the Generator Output and Capability report. Refer also to shared schemas.
|
| Last Updated |
Dec 10, 2003 |
| Sample |
xsd
|
Hourly Ontario Energy Price (HOEP) Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the Hourly Ontario Energy Price (HOEP) report. Refer also to shared schemas.
|
| Last Updated |
Dec 10, 2003 |
| Sample |
xsd
|
Dispatch Advisory Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the Dispatch Advisory report. Refer also to shared schemas.
|
| Last Updated |
Jun 23, 2004 |
| Sample |
xsd
|
DACP Predispatch Energy Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Predispatch Energy report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
DACP Predispatch Prices Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Predispatch Prices report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
DACP Adequacy Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Adequacy report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
DACP Reliability Commitment Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Reliability Commitment report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
DACP Commitments Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Commitments report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
DACP Check Source/ADE Report Schema
Sample file intended to allow report users to set up their XML parser for receiving the DACP Check Source/ADE report. Refer also to shared schemas.
|
| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
Financially Binding Status
Sample file intended to allow report users to set up their XML parser for receiving the DACP Financially Binding Status report. Refer also to shared schemas.
|
| Last Updated |
Aug 17, 2006 |
| Sample |
xsd
|
Adequacy
Sample file intended to allow report users to set up their XML parser for receiving the Adequacy report. Refer also to shared schemas.
|
| Last Updated |
Feb 19, 2007 |
Market Forecasts
Message Exchange
Meter Trouble Reporting
Application Status Tool: A User Guide (IMP_GDE_0103)
This document is a guide to the use of the Applications Status tool for IESO interactive workflow applications.
|
| Last Updated |
Dec 7, 2005 |
| Document |
pdf
|
Meter Trouble Report: A Guide for Market Participants (IMP_GDE_0098)
This document is a guide for market participants to the use of the Meter Trouble Report workflow application.
|
| Last Updated |
Sep 21, 2005 |
| Document |
pdf
|
Outage Management
Web Service Design Specification (SPEC-113)
This document provides the design specification for Outage Coordination and Scheduling System (OCSS) web service.
|
| Last Updated |
Nov 27, 2020 |
| Document |
pdf
|
Planned Transmission Outages Report
This report shows the future transmission outages for various time frames; daily, monthly and six-monthly.
The following sets of reports are made available to participants:
- daily reports until the end of the next month;
- Monthly reports for the following six months;
- 6-monthly reports available for the following year.
|
| Last Updated |
Sep 25, 2002 |
| Publishing Frequency |
Daily |
| Report Period |
Day, Month, 6-Month |
| Sample |
html
csv
|
Historical Transmission Outage Report
This report lists the outages that have occurred or were in-progress for the previous hour.
|
| Last Updated |
Aug 28, 2002 |
| Publishing Frequency |
Hourly |
| Report Period |
Previous 1 Hour |
| Sample |
html
csv
|
Registration System
Facilities API Specification SPEC-249
The purpose of this document is to provide the design specification for the Facility Application Programing Interface (API) web service.
|
| Last Updated |
Jan 18, 2022 |
| Document |
pdf
|
Revenue Metering
Loss Equations, Administration of Losses (GDE-184)
This document describes how loss equations (fixed loss factors and loss coefficients) are applied to specific service points within the IESO’s Meter Data Management (MDM) system.
|
| Last Updated |
Nov 18, 2020 |
| Document |
pdf
|
Implementation Guide for EDI-867 Meter Data (GDE-139)
This document describes the EDI-867 meter data file format.
|
| Last Updated |
Nov 18, 2020 |
| Document |
pdf
|
Importing and Reading the IESO EDI-867 Meter Data File (GDE-140)
This is a new document to describe how to import and read the IESO EDI-867 meter data file.
|
| Last Updated |
Nov 18, 2020 |
| Document |
pdf
|
EDI-867 Sample File 1
This is a new sample file that represents the meter data a market participant can expect to see when an EDI-867 file is produced by the Meter Data Management System and published to the IESO Reports Site.
|
| Last Updated |
Sep 9, 2015 |
| Sample |
edi
|
EDI-867 Sample File 2 with DTM Flags
This is a new sample file that represents the meter data (with date/time stamps included) a market participant can expect to see when an EDI-867 file is produced by the Meter Data Management System and published to the IESO Reports Site.
|
| Last Updated |
Sep 9, 2015 |
| Sample |
edi
|
Transmission Rights
Transmission Rights Auction System - Market Participant User Guide (IMO_GDE_0004)
This document provides a description of the functionality of the IESO's Transmission Rights Auction which is available to those market participants who have registered to be TR participants.
|
| Last Updated |
Sep 15, 2021 |
| Document |
pdf
|
Transmission Auction Participant Notification Report
This report contains a TR Participant’s results for a TR auction round. The TR Participant must have participated in a TR auction round specified by placing an accepted bid in order to receive a Participant Notification Report. The report provides notice of what transmission rights, if any, have been awarded and the resultant TR market clearing price. It also lists the round end time and the time structure. A report will be issued, regardless if a TR participant was successful or not.
The report can be accessed through the Market Participant Interface (MPI).
|
| Last Updated |
Jul 18, 2001 |
| Publishing Frequency |
Within 24 Hours of Auction Closing |
| Sample |
html
|
Transmission Auction Participant Bid History Report
This report enables a TR participant to view TR bids submitted by them, and their status over the last 18 months. The TR participant must have participated in the TR auction round specified by placing an accepted bid in order to receive the Bid History Report.
The report can be accessed through the Market Participant Interface (MPI).
|
| Last Updated |
Jul 18, 2001 |
| Publishing Frequency |
Within 24 Hours of Auction Closing |
| Sample |
html
|
Post Auction MCP Report
This report provides aggregated auction results after the TR auction round has been completed. The report identifies the total number of TRs awarded and the associated TR market clearing price for a particular path in a TR auction round.
The report will remain visible from the user interface page for thirty days from the TR Auction round completion. The report can be accessed through the IESO Web site.
|
| Last Updated |
Apr 18, 2002 |
| Publishing Frequency |
Within 24 Hours of Auction Closing |
| Sample |
html
|
Daily TR Hourly Zonal Price Report
This report enables you to view, in a daily format, the hourly zonal prices determined by the last projected market price (the zonal price from the last run of the Predispatch Unconstrained schedule) for energy. The report looks backward for 60 days to ensure that any price changes are captured in the report.
The report can be accessed through the user interface of the IESO Web site for the previous 3 days of data. Data from previous days, up to 12 months into the past, are available from the IESO Reports site.
|
| Last Updated |
Apr 18, 2002 |
| Publishing Frequency |
Daily at 6:30 EST |
| Sample |
html
|
Monthly TR Hourly Zonal Price Report
This report enables you to view, in a monthly format, the hourly zonal prices determined by the last projected market price (the zonal price from the last run of the Predispatch Unconstrained schedule) for energy. The report looks backward for 60 days to ensure that any price changes are captured in the report.
Data from previous days, up to 12 months into the past (or up to Market Commencement), are available and can be accessed via the IESO Reports site.
|
| Last Updated |
Apr 18, 2002 |
| Publishing Frequency |
Daily at 6:30 EST |
| Sample |
csv
|
Daily TR Historical Interface Flow, Schedule and TTC Report
This report enables you to view, in a daily format, the actual hourly average Schedules and Flows as a result of scheduled and off market transactions between Ontario and an intertie zone. (Negative values denote flows into Ontario).
The report also enables you to view the Total Transfer Capability (TTC) used for determining the maximum import / export market schedules between Ontario and an Intertie Zone. (TTC IN refers to flows from the external Intertie zone into Ontario). The report looks backward for 60 days to ensure that any price changes are captured in the report.
This report can be accessed through the user interface of the IESO Web site for the previous 3 days of data. Data from previous days, up to 12 months into the past, are available from the IESO Reports site.
|
| Last Updated |
Apr 18, 2002 |
| Publishing Frequency |
Daily at 6:30 EST |
| Sample |
html
|
Monthly TR Historical Interface Flow, Schedule and TTC Report
As with the daily report, this report enables you to view, in a monthly format, the actual hourly average Schedules and Flows as a result of scheduled and off market transactions between Ontario and an intertie zone. The report looks backward for 60 days to ensure that any price changes are captured in the report.
Data from previous days, up to 12 months into the past (or up to Market Commencement), are available and can be accessed via the IESO Reports site.
|
| Last Updated |
Apr 18, 2002 |
| Publishing Frequency |
Daily at 6:30 EST |
| Sample |
csv
|
Pre Auction MCP Report
This report enables the TR Participant to view the Market Clearing Price at which each TR sold during all TR auction rounds held in the previous 18 months (or until market opening).
This report can be accessed through the user interface of the IESO Web site until the start of the TR period of validity.
|
| Last Updated |
Apr 18, 2002 |
| Sample |
html
|
Pre Auction TTC Report
This report enables you to view the forecast of TTC used to determine the number of TRs that will be offered and the maximum number of TRs that may be available. The report also contains a link to the detailed TTC assessments used to identify any assumptions and applicable constraints that can limit the number of TRs that can be awarded.
This report can be accessed through the user interface of the IESO Web site until the start of the TR period of validity.
|
| Last Updated |
Apr 18, 2002 |
| Sample |
htm
|
XML and Automated Documents
XML - A Quick Primer (IESO_GDL_0028)
A document to provide participants with a simple overview of XML Reporting.
|
| Last Updated |
Sep 12, 2018 |
| Document |
pdf
|
Automated Documents (STD-2)
This document defines the standards applicable to the production of IESO automated documents.
|
| Last Updated |
Mar 25, 2015 |
| Document |
pdf
|
Outbound Automated Document, Application Programming Interface (IMO_SPEC_0100)
This document presents and describes the application programming interface (API) for automating retrieval of XML reports published by the IESO.
|
| Last Updated |
Dec 16, 2020 |
| Document |
pdf
|
Shared components of Schema model for XML reports that reference old IMO domain.
Sample file intended to allow report users to set up their XML parser for receiving the following IESO reports: - Intertie Schedule and Flow Report - Generators Output and Capablity Report - Hourly Ontario Energy Price (HOEP) Report - Dispatch Advisory Report
|
| Last Updated |
Dec 10, 2003 |
| Sample |
xsd
|
Shared XML Schema
Common Schema for al XML reports in service after June 1st, 2006.
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| Last Updated |
Jun 7, 2006 |
| Sample |
xsd
|
