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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 1:00 p.m. EST
14,519 MW
Market Demand at 1:00 p.m. EST
17,491 MW
Hourly Output by Fuel Type at 1:00 p.m. EST
Nuclear
10,386 MW
Hydro
4,798 MW
Gas
728 MW
Wind
86 MW
Solar
252 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 1:00 p.m. EST
$7.44 / MWh
Global Adjustment 1st Estimate (May)
$128.60/ 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 -3.00
2 -4.10
3 -4.11
4 -3.55
5 -1.00
6 5.89
7 7.58
8 25.11
9 5.09
10 -1.61
11 5.74
12 0.48
13 7.44
14 -3.29
15 -4.00
16 -4.00
17 5.00
18 5.00
19 5.00
20 5.81
21 5.15
22 -0.13
23 0.00
24 -4.50

Ontario Demand (MW)

Actual    Projected

HE
1 11,875
2 11,559
3 11,468
4 11,547
5 12,147
6 13,136
7 14,473
8 14,896
9 14,806
10 14,736
11 14,758
12 14,600
13 14,519
14 14,308
15 14,183
16 14,317
17 14,597
18 14,861
19 15,049
20 15,168
21 15,029
22 14,222
23 13,277
24 12,460

Market Demand (MW)

Actual    Projected

HE
1 14,316
2 13,831
3 13,854
4 13,970
5 14,586
6 15,483
7 17,023
8 17,776
9 17,582
10 17,456
11 17,577
12 17,504
13 17,491
14 17,341
15 17,250
16 17,434
17 17,524
18 17,615
19 17,730
20 17,717
21 17,472
22 17,224
23 15,911
24 14,123
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
May 2019 128.60
Apr 2019 81.29 124.88 123.33 15.57
Mar 2019 81.05 75.75 80.41 27.34
Feb 2019 96.57 82.36 88.12 27.89
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Jun 2018 133.36 102.39 118.96 18.34
Date 1st 2nd Actual Rate Avg. HOEP
May 2019 12.86
Apr 2019 8.13 12.49 12.33 1.56
Mar 2019 8.11 7.58 8.04 2.73
Feb 2019 9.66 8.24 8.81 2.79
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Jun 2018 13.34 10.24 11.90 1.83
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 24 May 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 01 May 2019 20 16,784
2 13 May 2019 20 16,510
3 02 May 2019 20 16,451
4 09 May 2019 17 16,033
5 06 May 2019 20 16,015
6 22 May 2019 20 15,933
7 03 May 2019 8 15,899
8 21 May 2019 21 15,848
9 14 May 2019 21 15,848
10 16 May 2019 20 15,843

* This column is reflected in the demand chart above