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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
11,840 MW
Market Demand at 5:00 a.m. EST
14,231 MW
Hourly Output by Fuel Type at 4:00 a.m. EST
Nuclear
8,729 MW
Hydro
4,146 MW
Gas
233 MW
Wind
598 MW
Solar
0 MW
Biofuel
13 MW
Hourly Ontario Energy Price at 5:00 a.m. EST
($0.75) / MWh
Global Adjustment 1st Estimate (April)
$68.74 / 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.

Learn more >
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 -3.00
2 -3.00
3 -3.00
4 -3.00
5 -1.00
6 5.36
7 6.10
8 12.00
9 6.08
10 11.80
11 0.00
12 0.00
13 0.00
14 0.00
15 0.00
16 0.00
17 0.00
18 5.55
19 6.06
20 13.00
21 10.28
22 0.81
23 0.00
24 -4.10

Ontario Demand (MW)

Actual    Projected

HE
1 11,507
2 11,306
3 11,244
4 11,332
5 11,808
6 13,473
7 14,053
8 14,353
9 14,294
10 14,220
11 14,086
12 13,927
13 13,787
14 13,626
15 13,564
16 13,666
17 13,833
18 13,947
19 14,274
20 14,779
21 14,671
22 13,834
23 12,795
24 12,013

Market Demand (MW)

Actual    Projected

HE
1 14,029
2 13,895
3 13,834
4 13,916
5 14,375
6 15,718
7 16,175
8 16,965
9 16,775
10 16,608
11 16,173
12 16,026
13 15,878
14 16,028
15 15,902
16 16,062
17 16,210
18 16,245
19 16,569
20 17,048
21 16,954
22 16,037
23 15,107
24 13,525
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
May 2017
Jun 2017
Jul 2017
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
May 2017
Jun 2017
Jul 2017
Aug 2017
Sep 2017
Oct 2017
Nov 2017
Dec 2017
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2016 to April 30, 2017

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

as of 28 Apr 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 07 Sep 2016 17 23,213 22,527
2 10 Aug 2016 18 23,100 22,637
3 11 Aug 2016 17 22,812 22,318
4 13 Jul 2016 18 22,659 22,189
5 12 Aug 2016 17 22,402 21,904
6 04 Aug 2016 17 22,312 21,868
7 06 Sep 2016 17 22,150 21,641
8 22 Jul 2016 17 22,024 21,665
9 08 Sep 2016 18 21,963 21,200
10 05 Aug 2016 13 21,926 21,408

* This column is reflected in the demand chart above