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

Ontario Demand at 5:00 a.m. EST
12,957 MW
Market Demand at 5:00 a.m. EST
15,558 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
10,593 MW
Hydro
2,975 MW
Gas
425 MW
Wind
656 MW
Solar
0 MW
Biofuel
13 MW
Hourly Ontario Energy Price at 5:00 a.m. EST
$3.06 / MWh
Global Adjustment 1st Estimate (August)
$115/ 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 0.00
2 0.00
3 0.00
4 3.13
5 3.06
6 13.30
7 20.05
8 32.72
9 33.66
10 38.00
11 38.33
12 40.54
13 46.48
14 54.08
15 52.45
16 52.45
17 57.78
18 51.93
19 46.49
20 46.49
21 41.67
22 33.54
23 32.13
24 13.38

Ontario Demand (MW)

Actual    Projected

HE
1 13,222
2 12,754
3 12,521
4 12,518
5 12,957
6 14,964
7 16,050
8 16,971
9 17,891
10 18,732
11 19,096
12 20,007
13 20,831
14 21,208
15 20,646
16 20,721
17 21,046
18 20,948
19 20,699
20 20,906
21 20,371
22 19,001
23 17,543
24 16,256

Market Demand (MW)

Actual    Projected

HE
1 15,823
2 15,345
3 15,135
4 15,099
5 15,558
6 17,785
7 18,231
8 18,725
9 19,767
10 21,013
11 21,052
12 21,887
13 23,056
14 23,366
15 23,050
16 23,173
17 22,897
18 22,889
19 22,678
20 22,770
21 22,177
22 20,533
23 19,530
24 17,737
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 106.52 101.97 112.80 13.61
Aug 2017 115.00
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 10.20 11.28 1.36
Aug 2017 11.50
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 21 Aug 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 20,024
3 06 Jul 2017 18 20,366 19,869
4 11 Jul 2017 18 20,302 19,691
5 21 Jul 2017 17 20,192 19,730
6 31 Jul 2017 17 20,096
7 01 Aug 2017 14 20,079
8 18 Jul 2017 19 20,071 19,562
9 02 Aug 2017 16 20,070
10 07 Jul 2017 17 19,911 19,415

* This column is reflected in the demand chart above