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

Ontario Demand at 1:00 p.m. EST
16,039 MW
Market Demand at 1:00 p.m. EST
18,112 MW
Hourly Output by Fuel Type at 12:00 p.m. EST
Nuclear
10,677 MW
Hydro
4,360 MW
Gas
416 MW
Wind
1,731 MW
Solar
233 MW
Biofuel
32 MW
Hourly Ontario Energy Price at 1:00 p.m. EST
$6.03 / 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 -1.55
4 -3.00
5 -0.51
6 -0.50
7 -0.28
8 3.65
9 7.44
10 0.00
11 5.73
12 8.49
13 6.03
14 13.02
15 14.40
16 27.88
17 32.04
18 19.62
19 17.03
20 26.79
21 13.39
22 13.33
23 13.02
24 13.25

Ontario Demand (MW)

Actual    Projected

HE
1 12,778
2 12,392
3 12,092
4 12,042
5 12,438
6 13,348
7 14,266
8 14,972
9 15,302
10 15,509
11 15,748
12 15,902
13 16,064
14 16,145
15 16,725
16 16,982
17 17,147
18 16,913
19 16,792
20 17,142
21 16,737
22 15,503
23 14,151
24 13,215

Market Demand (MW)

Actual    Projected

HE
1 15,509
2 15,057
3 14,734
4 14,610
5 15,005
6 15,797
7 16,547
8 17,339
9 17,673
10 17,492
11 17,784
12 17,933
13 18,138
14 18,216
15 18,875
16 19,205
17 19,404
18 19,154
19 19,020
20 19,078
21 18,696
22 17,522
23 16,571
24 14,979
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 23 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 21 Aug 2017 17 20,158
7 31 Jul 2017 17 20,096
8 01 Aug 2017 14 20,079
9 18 Jul 2017 19 20,071 19,562
10 02 Aug 2017 16 20,070

* This column is reflected in the demand chart above