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This section provides easy access to market data, including real-time and historical reports.

Ontario Demand at 6:00 a.m. EST
11,485 MW
Market Demand at 6:00 a.m. EST
14,248 MW
Hourly Output by Fuel Type at 6:00 a.m. EST
Nuclear
10,449 MW
Hydro
2,575 MW
Gas
245 MW
Wind
572 MW
Solar
2 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 6:00 a.m. EST
($4.23) / MWh
Global Adjustment 1st Estimate (July)
$106.52/ MWh
Ontario Demand
Market Demand
Compare With
Compare With
Compare With Ontario Demand
Compare With Market Demand

Download XML: Demand | Supply | Price

Data Directory

A collection of all reports provided on the IESO Public Reports site as well as access to historical data.

The IESO uses the "Hour Ending" naming convention for the hours in a day. For example, Hour 1 is from 12 am. to 1 am., Hour 2 is from 1 am. to 2 am. Hours 1-24 are the hours from midnight one day through midnight the next day. Eastern Standard Time is used year round.

Demand Icon

Demand Overview

Read more about Ontario’s electricity demand records, forecasts and related real-time reports.

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Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

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Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.

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Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

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The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 -3.25
2 -4.00
3 -4.30
4 -4.30
5 -4.30
6 -4.23
7 -3.00
8 -3.00
9 4.78
10 0.00
11 0.00
12 4.81
13 5.11
14 5.90
15 7.84
16 13.01
17 13.01
18 13.00
19 6.10
20 5.87
21 6.08
22 0.00
23 4.80
24 -4.10

Ontario Demand (MW)

Actual    Projected

HE
1 11,873
2 11,462
3 11,366
4 11,285
5 11,297
6 11,485
7 12,137
8 13,014
9 13,771
10 14,271
11 14,629
12 14,854
13 14,972
14 15,158
15 15,344
16 15,728
17 16,181
18 16,227
19 16,061
20 15,862
21 15,836
22 15,085
23 14,070
24 13,157

Market Demand (MW)

Actual    Projected

HE
1 14,643
2 14,229
3 14,154
4 14,068
5 14,063
6 14,248
7 15,266
8 15,975
9 16,458
10 16,829
11 17,233
12 17,381
13 17,486
14 17,639
15 17,846
16 18,273
17 18,742
18 18,687
19 18,151
20 17,911
21 17,861
22 17,106
23 16,281
24 14,407
Recent Summaries

Daily

Monthly

Global Adjustment Rates

Global Adjustment (GA) Rates and Average Hourly Ontario Energy Price

*Preliminary values for average HOEP will be available soon after month end, and can be confirmed in the Monthly Market Report. Global Adjustment values will be finalized 10 business days after month end.


Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 66.87 86.77 82.27 21.56
Feb 2017 105.59 84.30 86.39 21.11
Mar 2017 84.09 68.86 71.35 26.03
Apr 2017 68.74 102.18 107.78 11.14
May 2017 106.23 127.76 123.07 3.17
Jun 2017 119.54 125.63 118.48 5.89
Jul 2017 106.52
Aug 2017
Sep 2017
Oct 2017
Nov 2017
Dec 2017
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 6.69 8.68 8.23 2.16
Feb 2017 10.56 8.43 8.64 2.11
Mar 2017 8.41 6.89 7.14 2.60
Apr 2017 6.87 10.22 10.78 1.11
May 2017 10.62 12.78 12.31 0.32
Jun 2017 11.95 12.56 11.85 0.59
Jul 2017 10.65
Aug 2017
Sep 2017
Oct 2017
Nov 2017
Dec 2017
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2017 to April 30, 2018

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 29 Jul 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 12 Jun 2017 17 21,168 20,702
2 19 Jul 2017 19 20,627
3 06 Jul 2017 18 20,366
4 11 Jul 2017 18 20,302
5 21 Jul 2017 17 20,192
6 18 Jul 2017 19 20,071
7 07 Jul 2017 17 19,911
8 12 Jul 2017 13 19,600
9 16 Jun 2017 17 19,452 18,921
10 05 Jul 2017 19 19,365

* This column is reflected in the demand chart above