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Corporate IESO > Contact

Contact

Have a question for the IESO about how to participate in the electricity market or a program? Want to make a comment or ask us a question? We want to hear from you. Here's how you can reach us.

Mailing Address

Independent Electricity System Operator

1600-120 Adelaide Street West

Toronto, ON M5H 1T1

Receive updates from the IESO 

Sign-up for weekly news on the electricity market and other initiatives:

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Grid Innovation Fund

Email:
gridinnovationfund@ieso.ca

Visit:
Grid Innovation Fund>

Registered Participants with the IESO

Telephone:
905.403.6900""

Toll-free:
1.888.448.7777""

Email:
customer.relations@ieso.ca

Energy Efficiency Programs

Email:
saveonenergy@ieso.ca

Save on Energy Programs:

for home>

for small business>
for business and industry>

Provide goods and services to the IESO

Telephone:
905.855.6401""

Email:
rfp.info@ieso.ca

Visit:
Corporate Procurement>

microFIT 

(small renewable electricity generation projects)

Email:
microFIT.Contract@ieso.ca

Toll-free number:
1.844.957.3600

Visit:
microFIT>
Beacon>

If your question is regarding an existing microFIT Contract, please include the Contract ID and ensure the question is communicated from the email address found in Section 9.1 or A(10) of the microFIT Contract.

FIT

(large renewable electricity generation projects)

Email:
FIT.Contract@ieso.ca

Visit:
FIT>
Beacon>

If your question is regarding an existing FIT Contract, please include your Contract ID.

Media

Telephone:

416.506.2823""

Email:
media@ieso.ca

Visit:
Media >

Accessibility for Ontarians with Disabilities

As part of the IESO's efforts to meet the needs of people with disabilities, documents posted to this website will be made available in additional formats upon request to customer.relations@ieso.ca.

The IESO also welcomes feedback regarding the methods it uses to provide services to persons with disabilities. Feedback can be directed as follows:

  • by telephone - 905.403.6900"", toll-free: 1.888.448.7777""
  • in writing - IESO, Station A, Box 4474, Toronto, ON M5W 4E5, Attention: Customer Relations
  • by email - customer.relations@ieso.ca

Any concerns not being adequately dealt with by the IESO can be raised with the IESO's General Counsel:

1600-120 Adelaide Street West
Toronto, ON M5H 1T1
Fax: 416.506.2843""
Email: IESO-LegalServices@ieso.ca