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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 6:00 p.m. EST
14,662 MW
Market Demand at 6:00 p.m. EST
16,034 MW
Hourly Output by Fuel Type at 5:00 p.m. EST
Nuclear
9,151 MW
Hydro
4,810 MW
Gas
423 MW
Wind
1,173 MW
Solar
183 MW
Biofuel
88 MW
Hourly Ontario Energy Price at 6:00 p.m. EST
$12.24 / 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.

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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 0.00
2 0.00
3 2.93
4 11.79
5 16.82
6 10.91
7 14.02
8 14.38
9 11.10
10 9.35
11 12.23
12 6.56
13 1.92
14 0.48
15 2.75
16 3.56
17 18.50
18 16.27
19 16.27
20 16.27
21 16.27
22 15.65
23 16.27
24 15.70

Ontario Demand (MW)

Actual    Projected

HE
1 11,727
2 11,594
3 11,680
4 11,959
5 12,448
6 13,434
7 14,156
8 14,444
9 14,076
10 13,370
11 13,205
12 13,246
13 13,282
14 13,100
15 13,319
16 13,770
17 14,650
18 15,122
19 15,372
20 15,587
21 15,115
22 14,211
23 13,308
24 12,687

Market Demand (MW)

Actual    Projected

HE
1 13,628
2 13,514
3 13,443
4 13,644
5 14,549
6 15,039
7 15,567
8 15,741
9 15,374
10 14,958
11 14,834
12 15,017
13 14,825
14 14,729
15 14,782
16 15,467
17 16,321
18 16,777
19 16,953
20 17,130
21 16,928
22 16,330
23 15,179
24 14,595
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 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 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 14 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.