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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 2:00 p.m. EST
14,035 MW
Market Demand at 2:00 p.m. EST
15,862 MW
Hourly Output by Fuel Type at 1:00 p.m. EST
Nuclear
5,575 MW
Hydro
4,931 MW
Gas
4,556 MW
Wind
348 MW
Solar
362 MW
Biofuel
0 MW
Hourly Ontario Energy Price at 2:00 p.m. EST
$31.07 / MWh
Global Adjustment 1st Estimate (May)
$45.88/ MWh
Ontario Demand
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Compare With Ontario Demand
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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.

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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 17.28
2 16.08
3 20.53
4 21.01
5 19.25
6 25.27
7 28.45
8 26.92
9 29.72
10 41.57
11 32.19
12 37.43
13 33.63
14 38.38
15 33.37
16 33.37
17 51.00
18 42.00
19 42.00
20 42.00
21 40.00
22 30.01
23 22.04
24 26.11

Ontario Demand (MW)

Actual    Projected

HE
1 12,118
2 11,967
3 11,939
4 12,075
5 12,392
6 13,235
7 14,531
8 14,533
9 14,417
10 14,351
11 14,325
12 14,190
13 14,153
14 14,077
15 14,356
16 14,696
17 15,090
18 15,400
19 15,666
20 15,886
21 15,681
22 14,831
23 13,850
24 13,066

Market Demand (MW)

Actual    Projected

HE
1 14,259
2 13,690
3 13,823
4 14,037
5 13,902
6 14,467
7 15,541
8 15,250
9 15,226
10 15,418
11 15,612
12 15,844
13 15,880
14 16,367
15 16,245
16 16,295
17 16,725
18 16,598
19 16,793
20 17,072
21 17,239
22 16,934
23 15,810
24 14,281
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 2024 45.88
Apr 2024 84.98 69.05
Mar 2024 83.66 83.10 81.71 28.88
Feb 2024 84.98 68.68 66.32 28.36
Jan 2024 54.13 50.10 45.88 43.29
Dec 2023 83.40 67.59 66.22 30.94
Nov 2023 70.40 82.88 70.90 30.42
Oct 2023 73.32 84.33 84.98 31.38
Sep 2023 58.37 74.54 50.93 39.57
Aug 2023 53.77 51.54 76.06 31.36
Jul 2023 99.62 51.05 49.49 40.42
Jun 2023 98.53 89.72 82.93 30.33
Date 1st 2nd Actual Rate Avg. HOEP
May 2024 4.59
Apr 2024 8.50 6.91
Mar 2024 8.37 8.31 8.17 2.89
Feb 2024 8.50 6.87 6.63 2.84
Jan 2024 5.41 5.01 4.59 4.33
Dec 2023 8.34 6.76 6.62 3.09
Nov 2023 7.04 8.29 7.09 3.04
Oct 2023 7.33 8.43 8.50 3.14
Sep 2023 5.84 7.45 5.09 3.96
Aug 2023 5.38 5.15 7.61 3.14
Jul 2023 9.96 5.11 4.95 4.04
Jun 2023 9.85 8.97 8.29 3.03
ICI Ontario Demand Peak Tracker

Top 10 peak hours and ICI Ontario demand values with coincident adjusted AQEW values to date

Real-time snapshot of the top 10 peak hours and ICI Ontario demand values with coincident adjusted AQEW values for the current base period. This information can be used by ICI customers to track ICI Ontario demand peaks and estimate their GA allocation for the peak hour.

Peak Tracker

as of 2 May 2024


Rank Date Hour Ending (EST) ICI Ontario Demand* (MW) Coincident Adjusted AQEW (MWh) Status* (Initial, Prelim, Final)
1 01 May 2024 20 15,680
2 02 May 2024 8 14,533

*ICI Ontario Demand Status: Initial peak values are published in orange approx. 1 hour following the end of the trade hour. Final peak values are published in black by the end of 3 business days following initial publication. *Coincident Adjusted AQEW Status: 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.

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