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Power Data

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

This Hour's Data
Ontario Demand at 2:00 a.m. EST
11,307 MW
Market Demand at 2:00 a.m. EST
12,761 MW
Hourly Output by Fuel Type at 2:00 a.m. EST
Nuclear
9,213 MW
Hydro
3,064 MW
Gas
110 MW
Wind
267 MW
Solar
0 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 2:00 a.m. EST
$7.97 / MWh
Global Adjustment 1st Estimate (May)
$98.51/ 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.
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.
The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 11.31
2 7.97
3 11.66
4 6.42
5 6.02
6 9.61
7 9.57
8 9.49
9 6.02
10 6.02
11 6.04
12 7.82
13 7.86
14 7.85
15 7.84
16 5.98
17 19.18
18 19.20
19 19.20
20 23.53
21 22.59
22 14.40
23 8.01
24 5.88

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 11,715
2 11,307
3 11,389
4 11,382
5 11,467
6 11,648
7 12,036
8 12,249
9 12,339
10 12,355
11 12,323
12 12,334
13 12,258
14 12,300
15 12,533
16 13,377
17 13,703
18 13,941
19 14,008
20 14,075
21 13,996
22 13,409
23 12,662
24 12,078

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 13,061
2 12,761
3 13,145
4 13,017
5 13,096
6 13,369
7 13,684
8 14,013
9 14,224
10 14,254
11 14,188
12 14,166
13 14,102
14 14,129
15 14,136
16 15,151
17 15,355
18 15,650
19 15,709
20 15,694
21 15,614
22 15,118
23 14,557
24 13,378

Ontario Market Today

Recent Summaries

Daily

Monthly

Daily Market Summaries

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
May 2021 98.51
Apr 2021 61.39 118.88
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
Date 1st 2nd Actual Rate Avg. HOEP
May 2021 9.85
Apr 2021 6.14 11.89
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

Price Overview

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 9 May 2021

Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 03 May 2021 17 15,882
2 04 May 2021 17 15,544
3 05 May 2021 20 15,450
4 06 May 2021 20 15,136
5 07 May 2021 20 14,776
6 01 May 2021 19 14,251 13,954 Initial
7 08 May 2021 20 14,055
8 02 May 2021 20 14,017
9 09 May 2021 1 11,715 0

*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.

Peak Tracker

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