Backgrounders

Here is a series of topical subjects about Ontario's electricity system. For more information about these and other story ideas, please contact IESO Media at 416.506.2823.

Market Renewal
Market Renewal is a collaborative effort between the IESO and stakeholders to pursue enhancements to Ontario’s electricity market that will address inefficiencies and lay a foundation that will prepare us for the electricity sector of tomorrow.

Leveraging a Smarter Grid
The smart grid uses innovative technologies to empower consumers to better manage their energy use and for the sector to manage the system more efficiently. Read more about demand response, energy storage, smart homes and more.

Electricity Pricing
The rate consumers pay depends on how much they use. Here's an overview of pricing structures in Ontario, how the wholesale electricity price is set, and the Global Adjustment.

Capacity Sharing
An agreement is in place between Ontario and Quebec to take advantage of the complementary seasonal peaks of each province. A backgrounder has been created to answer questions posed by stakeholders about the agreement.

Reliability of the Grid

Rules, standards, emergency plans, and public appeals are all tools that help to ensure a reliable grid for Ontario. As Reliability Co-ordinator for Ontario, the IESO is responsible for enforcing standards for critical infrastructure in the province's electricity system.

2003 Blackout
A look back at the causes of the 2003 power outage, lessons learned and the steps taken to improve reliability across North America.