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Power Data

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

Ontario Demand at 7:00 p.m. EST
20,052 MW
Market Demand at 7:00 p.m. EST
22,058 MW
Hourly Output by Fuel Type at 6:00 p.m. EST
Nuclear
11,161 MW
Hydro
5,855 MW
Gas
2,736 MW
Wind
1,046 MW
Solar
0 MW
Biofuel
44 MW
Hourly Ontario Energy Price at 7:00 p.m. EST
$31.33 / MWh
Global Adjustment 1st Estimate (December)
$83.91/ 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.

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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 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 Icon

Conservation Overview

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

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The Market Day

HOEP ($/MWh)

Dispatch    Pre-Dispatch

HE
1 0.00
2 0.00
3 0.00
4 0.00
5 0.00
6 3.80
7 10.82
8 36.71
9 33.96
10 37.60
11 35.54
12 31.56
13 29.08
14 28.30
15 28.69
16 25.88
17 29.04
18 32.29
19 32.66
20 33.45
21 32.66
22 32.66
23 30.36
24 13.00

Ontario Demand (MW)

Actual    Projected

HE
1 15,510
2 15,070
3 14,886
4 14,838
5 14,972
6 15,794
7 17,242
8 18,752
9 18,914
10 18,895
11 18,795
12 18,669
13 18,521
14 18,414
15 18,459
16 18,758
17 19,490
18 20,252
19 20,338
20 20,244
21 19,935
22 19,254
23 18,152
24 16,980

Market Demand (MW)

Actual    Projected

HE
1 17,626
2 17,090
3 16,891
4 16,938
5 17,090
6 18,076
7 19,633
8 20,755
9 20,917
10 20,890
11 20,821
12 20,494
13 20,352
14 20,175
15 20,322
16 20,500
17 21,058
18 22,105
19 22,475
20 22,358
21 21,973
22 21,357
23 20,344
24 19,223
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
Jan 2017 66.87 86.77 82.27 21.56
Feb 2017 105.59 84.30 86.39 21.11
Mar 2017 84.09 68.86 71.35 26.03
Apr 2017 68.74 102.18 107.78 11.14
May 2017 106.23 127.76 123.07 3.17
Jun 2017 119.54 125.63 118.48 5.89
Jul 2017 106.52 101.97 112.80 13.61
Aug 2017 115.00 104.76 101.09 17.28
Sep 2017 127.39 98.95 88.64 23.13
Oct 2017 102.12 119.73 125.63 8.75
Nov 2017 111.64 96.69 14.01
Dec 2017 83.91
Date 1st 2nd Actual Rate Avg. HOEP
Jan 2017 6.69 8.68 8.23 2.16
Feb 2017 10.56 8.43 8.64 2.11
Mar 2017 8.41 6.89 7.14 2.60
Apr 2017 6.87 10.22 10.78 1.11
May 2017 10.62 12.78 12.31 0.32
Jun 2017 11.95 12.56 11.85 0.59
Jul 2017 10.65 10.20 11.28 1.36
Aug 2017 11.50 10.48 10.11 1.73
Sep 2017 12.74 9.90 8.86 2.31
Oct 2017 10.21 11.97 12.56 0.88
Nov 2017 11.16 9.67 1.40
Dec 2017 8.39
Peak Tracker

Top 10 Ontario Demand Peaks from May 1, 2017 to April 30, 2018

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

as of 13 Dec 2017


Rank Date Hour Ending Ontario Demand (MW)* AQEW (MW)
1 25 Sep 2017 17 21,786 21,171
2 26 Sep 2017 17 21,542 21,039
3 12 Jun 2017 17 21,168 20,702
4 19 Jul 2017 19 20,627 20,024
5 24 Sep 2017 18 20,457 19,854
6 06 Jul 2017 18 20,366 19,869
7 11 Dec 2017 18 20,306
8 11 Jul 2017 18 20,302 19,691
9 21 Jul 2017 17 20,192 19,730
10 21 Aug 2017 17 20,158 19,836

* This column is reflected in the demand chart above