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

Ontario Demand at 3:00 p.m. EST
12,942 MW
Market Demand at 3:00 p.m. EST
15,318 MW
Hourly Output by Fuel Type at 3:00 p.m. EST
Nuclear
9,172 MW
Hydro
4,764 MW
Gas
152 MW
Wind
235 MW
Solar
267 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 3:00 p.m. EST
($3.00) / MWh
Global Adjustment 1st Estimate (May) (May)
$106.23/ MWh

Ontario Demand

Market Demand

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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 -4.39
2 -4.48
3 -4.58
4 -4.63
5 -4.66
6 -4.62
7 -4.73
8 -4.44
9 -4.27
10 -4.05
11 -3.42
12 -4.00
13 -4.00
14 -4.00
15 -3.00
16 -3.00
17 -3.00
18 -3.00
19 -3.00
20 0.00
21 0.00
22 -3.00
23 -4.00
24 -4.70

Ontario Demand (MW)

Actual    Projected

HE
1 11,217
2 10,929
3 10,741
4 10,663
5 10,616
6 10,621
7 11,130
8 11,590
9 12,033
10 12,348
11 12,578
12 12,712
13 12,766
14 12,731
15 12,942
16 13,090
17 13,527
18 13,866
19 14,005
20 14,162
21 14,357
22 13,581
23 12,751
24 11,952

Market Demand (MW)

Actual    Projected

HE
1 13,795
2 13,469
3 13,217
4 13,137
5 13,030
6 13,098
7 13,468
8 14,174
9 14,466
10 14,663
11 14,877
12 14,881
13 15,006
14 15,131
15 15,318
16 15,655
17 16,197
18 16,329
19 16,344
20 16,507
21 16,507
22 16,082
23 15,350
24 13,529
Recent Summaries

Daily

Weekly

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
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 10.22 10.78 1.11
May 2017 10.62
Jun 2017
Jul 2017
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 28 May 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 18 May 2017 18 17,738
2 17 May 2017 21 17,110
3 04 May 2017 20 16,392
4 08 May 2017 21 16,112
5 25 May 2017 20 16,082
6 09 May 2017 21 16,062
7 01 May 2017 17 16,046
8 23 May 2017 20 15,943
9 10 May 2017 20 15,941
10 24 May 2017 20 15,885

* This column is reflected in the demand chart above