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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 12:00 a.m. EST
14,456 MW
Market Demand at 12:00 a.m. EST
16,690 MW
Hourly Output by Fuel Type at 12:00 a.m. EST
Nuclear
9,216 MW
Hydro
4,535 MW
Gas
1,327 MW
Wind
1,285 MW
Solar
0 MW
Biofuel
8 MW
Hourly Ontario Energy Price at 12:00 a.m. EST
$14.79 / MWh
Global Adjustment 1st Estimate (May)
$92.93/ 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.

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Conservation Overview

Learn about the progress made by Ontario's electricity conservation and demand response programs.

The Market Day
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Ontario Demand (MW)

Actual    Projected

HE
1 14,003
2 13,360
3 12,960
4 12,823
5 13,343
6 14,215
7 15,134
8 15,897
9 16,572
10 17,229
11 17,556
12 18,081
13 18,379
14 18,677
15 19,046
16 19,590
17 19,980
18 20,016
19 19,780
20 19,255
21 18,682
22 17,256
23 15,439
24 14,066

Market Demand (MW)

Actual    Projected

HE
1 16,810
2 16,426
3 15,823
4 15,581
5 15,945
6 16,537
7 17,339
8 18,256
9 18,264
10 18,837
11 19,146
12 19,818
13 20,252
14 20,887
15 21,023
16 21,319
17 21,682
18 21,624
19 21,390
20 20,804
21 20,027
22 18,430
23 16,956
24 15,307
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 2020 92.93
Apr 2020 137.07 115.00 115.00 6.05
Mar 2020 104.32 112.12 119.42 13.93
Feb 2020 124.51 114.35 113.31 14.52
Jan 2020 83.23 99.93 102.32 14.82
Dec 2019 85.69 90.66 93.21 21.91
Nov 2019 107.27 101.09 99.53 20.71
Oct 2019 178.78 118.86 136.80 7.25
Sep 2019 129.34 163.92 122.63 14.34
Aug 2019 72.11 109.74 126.07 16.13
Jul 2019 135.27 88.54 96.45 21.91
Jun 2019 124.44 147.72 137.28 4.83
Date 1st 2nd Actual Rate Avg. HOEP
May 2020 9.29
Apr 2020 13.71 11.50 11.50 0.61
Mar 2020 10.43 11.21 11.94 1.39
Feb 2020 12.45 11.44 11.33 1.45
Jan 2020 8.32 9.99 10.23 1.48
Dec 2019 8.57 9.07 9.32 2.19
Nov 2019 10.73 10.11 9.95 2.07
Oct 2019 17.88 11.89 13.68 0.73
Sep 2019 12.93 16.39 12.26 1.43
Aug 2019 7.21 10.97 12.61 1.61
Jul 2019 13.53 8.85 9.65 2.19
Jun 2019 12.44 14.77 13.73 0.48
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 27 May 2020


Rank Date Hour Ending (EST) Ontario Demand (MW) Coincident Adjusted AQEW (MWh) *Status (Initial, Prelim, Final)
1 26 May 2020 17 20,649
2 27 May 2020 18 19,887
3 25 May 2020 17 19,426
4 24 May 2020 18 15,586
5 14 May 2020 17 15,156 14,552 Initial
6 22 May 2020 19 14,649
7 08 May 2020 21 14,589 14,352 Prelim
8 11 May 2020 21 14,577 14,283 Prelim
9 12 May 2020 21 14,504 14,326 Prelim
10 15 May 2020 13 14,474 13,998 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.