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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 9:00 a.m. EST
15,493 MW
Market Demand at 9:00 a.m. EST
17,642 MW
Hourly Output by Fuel Type at 8:00 a.m. EST
Nuclear
9,238 MW
Hydro
5,433 MW
Gas
793 MW
Wind
945 MW
Solar
109 MW
Biofuel
27 MW
Hourly Ontario Energy Price at 9:00 a.m. EST
$14.35 / MWh
Global Adjustment 1st Estimate (April)
$81.29/ MWh
Ontario Demand
Market Demand
Compare With
Compare With
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.

Conservation Icon

Conservation Overview

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

The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 0.00
2 0.00
3 0.00
4 0.00
5 3.38
6 10.06
7 80.12
8 32.41
9 14.35
10 14.36
11 13.00
12 13.35
13 13.00
14 13.00
15 5.81
16 5.90
17 13.00
18 13.00
19 13.35
20 14.38
21 14.37
22 12.21
23 5.92
24 0.00

Ontario Demand (MW)

Actual    Projected

HE
1 12,072
2 11,955
3 11,919
4 12,133
5 12,729
6 13,960
7 15,353
8 15,679
9 15,178
10 15,113
11 14,751
12 14,370
13 14,236
14 14,027
15 13,946
16 14,270
17 14,606
18 14,713
19 15,307
20 15,663
21 15,366
22 14,402
23 13,314
24 12,578

Market Demand (MW)

Actual    Projected

HE
1 14,692
2 14,544
3 14,426
4 14,311
5 14,886
6 15,935
7 17,444
8 17,850
9 17,642
10 17,250
11 17,135
12 16,933
13 16,832
14 16,671
15 16,516
16 16,857
17 17,008
18 17,020
19 17,534
20 17,782
21 17,887
22 16,692
23 15,593
24 13,766
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
Apr 2019 81.29
Mar 2019 81.05 75.75 80.41
Feb 2019 96.57 82.36 88.12 27.89
Jan 2019 67.41 83.06 80.92 27.82
Dec 2018 91.98 70.67 74.04 27.89
Nov 2018 122.35 105.40 98.55 25.14
Oct 2018 89.21 119.98 120.59 13.84
Sep 2018 84.24 86.60 85.84 29.94
Aug 2018 77.90 73.24 74.90 30.59
Jul 2018 85.02 81.23 77.37 30.38
Jun 2018 133.36 102.39 118.96 18.34
May 2018 93.92 131.99 107.93 13.12
Date 1st 2nd Actual Rate Avg. HOEP
Apr 2019 8.13
Mar 2019 8.11 7.58 8.04
Feb 2019 9.66 8.24 8.81 2.79
Jan 2019 6.74 8.31 8.09 2.78
Dec 2018 9.20 7.07 7.40 2.79
Nov 2018 12.24 10.54 9.86 2.51
Oct 2018 8.92 12.00 12.06 1.38
Sep 2018 8.42 8.66 8.58 2.99
Aug 2018 7.79 7.32 7.49 3.06
Jul 2018 8.50 8.12 7.74 3.04
Jun 2018 13.34 10.24 11.90 1.83
May 2018 9.39 13.20 10.79 1.31
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2018 to April 30, 2019

New Ontario demand records are updated in real time. Verified Ontario demand values (AQEW) published 20 business days later.

as of 24 Apr 2019


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 05 Sep 2018 18 23,240 22,399
2 05 Jul 2018 16 23,046 22,377
3 04 Jul 2018 19 22,518 22,017
4 28 Aug 2018 17 21,990 21,644
5 04 Sep 2018 17 21,885 21,379
6 03 Jul 2018 19 21,761 21,291
7 16 Jul 2018 12 21,536 20,954
8 21 Jan 2019 18 21,525 20,829
9 15 Jul 2018 18 21,508 20,924
10 24 Jul 2018 17 21,451 20,943

* This column is reflected in the demand chart above