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Power Data

Power Data

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

This Hour's Data
Ontario Demand at 5:00 a.m. EST
11,363 MW
Market Demand at 5:00 a.m. EST
13,359 MW
Hourly Output by Fuel Type at 5:00 a.m. EST
Nuclear
10,030 MW
Hydro
2,734 MW
Gas
202 MW
Wind
191 MW
Solar
2 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 5:00 a.m. EST
$8.28 / MWh
Global Adjustment 1st Estimate (June)
$107.9/ 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 18.00
2 26.05
3 14.36
4 14.38
5 8.28
6 12.20
7 14.34
8 14.40
9 17.75
10 28.31
11 29.00
12 29.35
13 30.91
14 30.99
15 31.99
16 32.09
17 32.25
18 32.10
19 32.10
20 32.09
21 31.84
22 29.36
23 28.59
24 4.92

Price Today

Ontario Demand (MW)

Actual    Projected

HE
1 12,626
2 12,080
3 11,678
4 11,496
5 11,363
6 11,443
7 11,930
8 12,818
9 13,540
10 14,227
11 15,343
12 15,670
13 16,054
14 16,345
15 16,734
16 17,554
17 17,862
18 18,140
19 18,014
20 17,677
21 17,397
22 16,580
23 15,382
24 14,353

Ontario Demand Today

Market Demand (MW)

Actual    Projected

HE
1 14,492
2 14,036
3 13,533
4 13,573
5 13,359
6 13,757
7 14,050
8 14,864
9 15,721
10 16,521
11 17,664
12 17,965
13 18,478
14 18,770
15 19,100
16 20,023
17 20,321
18 20,613
19 20,207
20 20,101
21 19,703
22 18,926
23 17,654
24 15,546

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
Jun 2021 107.90
May 2021 98.51 100.66 100.54 14.63
Apr 2021 61.39 118.88 109.34 8.93
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
Date 1st 2nd Actual Rate Avg. HOEP
Jun 2021 10.79
May 2021 9.85 10.07 10.05 1.46
Apr 2021 6.14 11.89 10.93 0.89
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

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 20 Jun 2021

Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 07 Jun 2021 17 21,340 20,780 Initial
2 09 Jun 2021 17 21,157 20,738 Initial
3 06 Jun 2021 18 20,556 20,268 Prelim
4 08 Jun 2021 17 20,475 20,133 Initial
5 25 May 2021 18 19,443 18,802 Prelim
6 21 May 2021 18 19,243 18,862 Prelim
7 10 Jun 2021 18 18,975 18,636 Initial
8 05 Jun 2021 18 18,753 18,280 Prelim
9 20 May 2021 18 18,622 18,212 Final
10 11 Jun 2021 17 18,394 18,108 Initial

*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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