Have a question for the IESO about how to participate in the electricity market or a program? Want to make a comment or ask a question? We want to hear from you. Contact us.
Ontario's electricity industry is creating opportunities for participation by many new types of market and program participants, as well as renewable energy developers and contract holders.
Our services include:
IESO REPORTSPublic and Market Participant
PORTALAccess to applications for day-to-day transactions
Online IESORegistration System Tool, Reliability Compliance Tool
Energy Market Interface (EMI)Submit bids, offers and
schedules into the IESO energy market
There are a number of ways to interact with the IESO. Find out about the different markets and programs.
Get updates on how the IESO procures and manages a diverse portfolio of contracted electricity supply.
Learn more about the range of programs that help fund the design and delivery of renewable energy and conservation initiatives.
Understand what is required to register as a market participant or service provider.
Anyone planning a new or modified connection to the IESO-controlled grid must have a Connection Assessment.
Find information related to IESO settlements, including invoicing, Global Adjustment and prudentials.
Learn more about market participant obligations to comply with reliability standards.
The IESO enforces compliance with the Market Rules through its oversight activities.
Read how the IESO consults on, modifies and notifies participants about changes in the Market Rules and Manuals.
A direct link to IESO training courses and materials about all aspects of Ontario’s wholesale electricity market.
A one-stop shop for all market-related documents – market rules, manuals, procedures and forms.
Information about IESO’s stakeholder engagement initiatives, including Stakeholder Advisory Committee, Technical Panel, working groups, and regional planning activities.
Today’s price, demand and supply data at a glance. Easy-to-access downloads and other historical data.
What’s ahead at the IESO – stakeholder meetings, events, technical baselines and market calendars.
The latest market news from the IESO. Subscribe for the weekly IESO bulletin.