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

Ontario Demand at 10:00 a.m. EST
15,247 MW
Market Demand at 10:00 a.m. EST
16,939 MW
Hourly Output by Fuel Type at 9:00 a.m. EST
Nuclear
10,425 MW
Hydro
4,480 MW
Gas
282 MW
Wind
630 MW
Solar
89 MW
Biofuel
26 MW
Hourly Ontario Energy Price at 10:00 a.m. EST
$6.04 / 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 -4.15
2 -4.40
3 -4.43
4 -4.40
5 -2.76
6 1.08
7 11.51
8 6.67
9 6.01
10 5.13
11 4.89
12 0.00
13 4.89
14 0.00
15 0.00
16 0.00
17 6.14
18 5.87
19 6.02
20 7.07
21 6.29
22 6.02
23 0.00
24 -4.60

Ontario Demand (MW)

Actual    Projected

HE
1 12,138
2 11,766
3 11,646
4 11,690
5 12,155
6 13,138
7 14,520
8 14,888
9 15,116
10 15,068
11 15,088
12 15,091
13 15,072
14 14,992
15 14,994
16 15,166
17 15,315
18 15,101
19 15,065
20 15,214
21 15,249
22 14,531
23 13,563
24 12,550

Market Demand (MW)

Actual    Projected

HE
1 14,642
2 14,242
3 14,120
4 14,068
5 14,661
6 15,154
7 16,264
8 16,581
9 16,782
10 16,921
11 17,020
12 17,038
13 17,054
14 16,958
15 16,963
16 17,141
17 17,288
18 17,077
19 17,053
20 17,204
21 17,212
22 16,482
23 15,416
24 13,688
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
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 26 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