Market Data Explained

With the introduction of day-ahead and locational marginal prices, the IESO-administered markets feature an expanded offering of price, demand and supply information. A high-level view of this information is available on the Market Data page.

A new way of looking at the market

This visual guide explains how to navigate the Market Data page and provides definitions of the various data sources.

New terms in the renewed market

A glossary of frequently used terms for the renewed market, and additional information can be found in marketplace training.

What data is driving the Market Data page?

While the Market Data page features only a high-level view of market activity, all data feeds are available on the IESO Reports site. Below are direct links to the reports that populate the Market Data page.

Overview

Today's Projected Peak | Adequacy
Scheduled at Peak: Supply | Adequacy
Scheduled at Peak: Net Imports (+) / Exports (-) | Adequacy
Yesterday's Peak | Real-time Totals Report
Tomorrow's Projected Peak | Adequacy

Price by Location

Real-Time Market Price Data

Ontario Zonal Price | Real-time Ontario Zonal Price
Virtual Zonal Price | Real-time Zonal Energy Price
Intertie Price | Real-time Intertie LMP
Reference Bus Price | Real-time Energy LMP
Locational Marginal Price (LMP) | Real-time Energy LMP
Operating Reserve Prices | LMP: Real-time Operating Reserve LMP | Intertie: Real-time Intertie Operating Reserve LMP
Pre-dispatch Intertie Scheduling Limits
Scheduled Flow | Adequacy
Compare Ontario Demand | Real-time Totals Report

Day-Ahead Market Price Data

Ontario Zonal Price | Day-ahead Hourly Ontario Zonal Price
Virtual Zonal Price | Day-ahead Hourly Zonal
Intertie Price | Day-ahead Hourly Intertie LMP
Reference Bus Price | Day-ahead Hourly Energy LMP
Locational Marginal Price (LMP) | Day-ahead Hourly Energy LMP
Operating Reserve Prices | LMP: Day-ahead Hourly Operating Reserve LMP | Intertie: Day-ahead Hourly Intertie Operating Reserve LMP
Net Intertie Scheduling Limits | Day-ahead Intertie Scheduling Limits
Scheduled Day-Ahead Net Intertie Flow | Adequacy

Demand

Ontario Demand Hourly | Real-time Totals Report
Ontario Demand Projected Hourly | Adequacy
Ontario Demand 5-Minute | Real-time Totals Report
Market Demand Hourly | Real-time Totals Report
Demand Forecast Areas | Adequacy
Top 10 Ontario Demand Peaks | ICI Peak Tracker

Supply

Scheduled Day-Ahead Generation by Fuel Type | Adequacy
Real-Time Generation by Fuel Type | Generator Output and Capability Report
Imports, Exports and Net Value | Intertie Schedule and Flow