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Power Data

Power Data

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

Ontario Demand at 2:00 a.m. EST
12,113 MW
Market Demand at 2:00 a.m. EST
14,919 MW
Hourly Output by Fuel Type at 1:00 a.m. EST
Nuclear
10,072 MW
Hydro
3,785 MW
Gas
260 MW
Wind
1,094 MW
Solar
0 MW
Biofuel
10 MW
Hourly Ontario Energy Price at 2:00 a.m. EST
$0.41 / MWh
Global Adjustment 1st Estimate (April)
$137.07/ 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.

Supply Icon

Supply Overview

Get current and historical data for Ontario's transmission and distribution level supply and yearly import/export data.

Price Icon

Price Overview

Learn about electricity price trends and gain access to historical monthly average prices, global adjustment rates and time-of-use.

Conservation Icon

Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 5.49
2 8.88
3 6.18
4 6.21
5 13.00
6 13.61
7 13.35
8 13.61
9 13.44
10 13.33
11 13.35
12 13.30
13 13.31
14 8.88
15 6.47
16 13.34
17 17.66
18 14.18
19 17.40
20 17.71
21 18.11
22 13.39
23 13.35
24 -0.25

Ontario Demand (MW)

Actual    Projected

HE
1 12,346
2 12,113
3 12,103
4 12,168
5 12,917
6 13,751
7 14,185
8 14,650
9 14,629
10 14,182
11 13,825
12 13,499
13 13,446
14 13,395
15 13,527
16 13,985
17 14,541
18 14,870
19 15,307
20 15,379
21 14,861
22 14,040
23 13,250
24 12,649

Market Demand (MW)

Actual    Projected

HE
1 15,264
2 14,919
3 15,211
4 15,259
5 15,409
6 16,458
7 16,655
8 17,098
9 16,943
10 16,517
11 16,448
12 15,983
13 16,089
14 16,047
15 16,140
16 16,302
17 17,181
18 17,512
19 18,115
20 18,173
21 17,280
22 16,331
23 15,534
24 14,325
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
Apr 2020 137.07
Mar 2020 104.32 112.12
Feb 2020 124.51 114.35 113.31 14.52
Jan 2020 83.23 99.93 102.32 14.82
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
May 2019 128.60 130.49 126.04 7.58
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2020 13.71
Mar 2020 10.43 11.21
Feb 2020 12.45 11.44 11.33 1.45
Jan 2020 8.32 9.99 10.23 1.48
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
May 2019 12.86 13.05 12.60 0.76
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2019 to April 30, 2020

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

as of 1 Apr 2020


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 29 Jul 2019 17 21,791 21,068
2 05 Jul 2019 17 21,716 21,275
3 20 Jul 2019 18 21,646 20,942
4 19 Jul 2019 12 21,545 21,006
5 04 Jul 2019 18 21,423 20,956
6 21 Aug 2019 17 21,354 20,848
7 30 Jul 2019 17 21,269 20,509
8 20 Aug 2019 17 21,145 20,533
9 10 Jul 2019 18 21,083 20,510
10 07 Aug 2019 18 21,033 20,428

* This column is reflected in the demand chart above