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Ontario’s System-Wide Electricity Supply Mix: 2022 Data

Mar 31, 2023

Where did Ontario’s 2022 electricity come from?

Electricity SourcesOntario's Electricity Mix
Nuclear Energy51.0%
Natural Gas*10.2%
Solar PV2.5%
Other (non-emitting) **0.9%

Under O. Reg. 416/99 the Ministry of Energy is responsible for providing Ontario’s electricity supply mix data for electricity suppliers. The following table discloses the system-wide electricity supply mix data for 2022. This data must be used by electricity suppliers for the purposes of complying with the disclosure obligations of O. Reg. 416/99 and the Directive. This data should be considered current until further notice.
To fulfill the requirements of the Regulation, the OEB presents the information in percentages. To support the changes the IESO has made to the presentation of their distribution-connected data, the supply mix data in the table below is also presented in Terawatt-hours (TWh).

Electricity SourceTx-Connected (direct)Tx-Connected (direct)
Water Power38.000.7638.76
Natural Gas*15.200.5615.76
Solar PV0.753.073.82
Other (non-emitting) **0.011.441.45
*Includes Lennox and dual fuel (natural gas/bioenergy) consistent with IESO.
** Other represents a variety of fuel types that the IESO is unable to categorize due to a lack of information from Local Distribution Companies (LDCs).
1.Figures may not add to 100% due to rounding.
2.Figures do not account for the sale and retirement of Clean Energy Credits(CECs).