Get All the Facts

Electricity Retailing – Disclosure to Consumers, O. Reg. 416/99, requires retailers to disclose to consumers the Ontario system-wide electricity supply mix in the manner established by the Ontario Energy Board. The Board’s Directive for the Disclosure of Information to Consumers by Electricity Retailers under Ontario Regulation 416/99 prescribes the manner and timing requirements for this disclosure. The Directive applies to all retailers, including distributors that provide standard supply service.

Under O. Reg. 416/99 the Ministry of Energy is responsible for providing Ontario’s electricity supply mix data for electricity suppliers. The following label discloses the system-wide electricity supply mix data for 2017. 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.


Electricity Facts
Electricity Sources Ontario’s Electricity Mix*
Water power 25.6%
Alternative power sources 9.8%
     Solar PV      2.2%
     Wind      7.2%
     Biomass      0.4%
     Waste      0%
Nuclear Energy 60.1%
Natural Gas ** 4.0%
Other 0.3%
*Includes both transmission and distribution-connected/embedded generation

**Includes duel-fuelled facilities that are predominantly natural gas (e.g. Lennox Generating Station) Note: Figures may not add to 100% due to rounding.