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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 10:00 a.m. EST
13,435 MW
Market Demand at 10:00 a.m. EST
15,191 MW
Hourly Output by Fuel Type at 10:00 a.m. EST
Nuclear
9,139 MW
Hydro
4,266 MW
Gas
339 MW
Wind
939 MW
Solar
362 MW
Biofuel
32 MW
Hourly Ontario Energy Price at 10:00 a.m. EST
$0.00 / MWh
Global Adjustment 1st Estimate (April)
$61.39/ MWh
Ontario Demand
Market Demand
Compare With
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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.

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 Overview

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

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 2.38
2 5.18
3 0.41
4 5.90
5 8.48
6 5.24
7 2.80
8 5.96
9 1.97
10 0.00
11 8.00
12 5.87
13 8.00
14 8.00
15 14.39
16 14.29
17 6.04
18 12.51
19 14.38
20 17.00
21 16.99
22 12.32
23 6.15
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 11,602
2 11,455
3 11,408
4 11,940
5 12,248
6 13,332
7 14,010
8 14,199
9 13,998
10 13,435
11 14,026
12 13,696
13 13,721
14 13,750
15 14,157
16 14,606
17 15,074
18 15,280
19 15,522
20 15,765
21 15,647
22 14,655
23 13,546
24 12,655

Market Demand (MW)

Actual    Projected

HE
1 13,310
2 13,418
3 13,351
4 13,985
5 14,246
6 14,936
7 15,404
8 15,979
9 15,724
10 15,191
11 16,154
12 16,009
13 16,655
14 16,630
15 16,759
16 16,991
17 17,450
18 17,507
19 17,621
20 17,856
21 17,725
22 16,884
23 15,819
24 14,099
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.

This table does not include the GA deferral recovery amounts for 2021. More information on the 2021 GA estimates and actual recovery rates are on the Class B GA and GA components and costs web pages.


Date 1st 2nd Actual Rate Avg. HOEP
Apr 2021 61.39
Mar 2021 79.39 91.80 90.80 17.62
Feb 2021 98.51 37.12 50.42 33.77
Jan 2021 86.21 86.73 82.97 17.42
Dec 2020 107.04 100.31 105.58 15.98
Nov 2020 116.70 114.20 117.05 10.48
Oct 2020 149.54 132.66 128.06 11.32
Sep 2020 115.73 127.92 121.76 14.38
Aug 2020 102.32 106.22 103.48 19.42
Jul 2020 103.05 94.93 99.02 20.5
Jun 2020 115.00 115.00 115.00 12.49
May 2020 92.93 115.00 115.00 8.25
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2021 6.14
Mar 2021 7.94 9.18 9.08 1.76
Feb 2021 9.85 3.71 5.04 3.38
Jan 2021 8.62 8.67 8.30 1.74
Dec 2020 10.70 10.03 10.56 1.60
Nov 2020 11.67 11.42 11.71 1.05
Oct 2020 14.95 13.27 12.81 1.13
Sep 2020 11.57 12.79 12.18 1.44
Aug 2020 10.23 10.62 10.35 1.94
Jul 2020 10.31 9.49 9.90 2.05
Jun 2020 11.50 11.50 11.50 1.25
May 2020 9.29 11.50 11.50 0.83
Peak Tracker

Top 10 Ontario demand peaks with coincident adjusted AQEW values to date

Real-time snapshot of the highest Ontario demand values with coincident adjusted AQEW values for the current base period that can be used to track potential ICI peak hours. The status column indicates whether the coincident adjusted AQEW value is Initial, Preliminary or Final.

as of 19 Apr 2021


Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 09 Jul 2020 17 24,446 23,936 Final
2 07 Jul 2020 17 24,281 23,558 Final
3 08 Jul 2020 18 24,050 23,240 Final
4 27 Jul 2020 17 23,910 23,319 Final
5 10 Aug 2020 18 23,823 23,077 Final
6 10 Jul 2020 13 23,791 23,198 Final
7 24 Aug 2020 17 23,415 22,767 Final
8 06 Jul 2020 17 23,191 22,614 Final
9 26 Jul 2020 18 22,887 22,098 Final
10 03 Jul 2020 18 22,522 21,901 Final

*Initial data is published 7 calendar days after the trade date. Preliminary data is published 10 business days after the trade date. Final data is published 20 business days after the trade date. A blank column indicates adjusted AQEW values are not yet available.