Connection Assessment and Approval (CAA) Process: Obtaining an Assessment
Licenced Electricity Transmitters and Distributors in Ontario
It is recommended that you meet with the transmitter and/or distributor early in the planning process to review and develop your connection options.
Other related regulatory reviews, approvals or requirements
There may be a need to obtain other municipal, provincial and federal reviews and approvals or to address their specific requirements. These may include:
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Connecting to the IESO-Controlled Grid
The IESO-controlled grid means the transmission system operated at voltages above 50 kV and for which the IESO has authority to direct its operations. The IESO-controlled grid could end at, and include, the load side of low-voltage feeder breakers.
Connection to a Distribution System
A distribution system delivers electricity at voltages of 50 kV or less and includes any structures, equipment or other things used for that purpose, such as distribution feeders.
Ontario Energy Board Regulatory, Review, Approvals or Requirements
The Ontario Energy Board (OEB) has regulatory oversight of both natural gas and electricity matters in the province and also provides advice on energy matters referred to it by the Minister of Energy and the Minister of Natural Resources.
Ontario Energy Board Leave to Construct: Section 92. (1) of the Ontario Energy Board Act, 1998, directs that no person shall construct, expand or reinforce an electricity transmission line or an electricity distribution line or make an interconnection without first obtaining from the OEB an order granting leave to construct, expand or reinforce such line or interconnection. Ontario Regulation 365/00 prescribes the conditions under which OEB leave to construct is not required.
The OEB's Filing Requirements for Electricity Transmission Facilities Applications sets out the filing and evidentiary requirements which apply to the construction of electricity transmission lines in Ontario that are greater than or equal to 2 km in length.
Licence and Renewal Applications Section 57. of the Ontario Energy Board, 1998 sets out the licencing requirements for all market participants in the electricity sector, including generators, transmitters, distributors, wholesalers, and retailers. Ontario Regulation 20/02 and Ontario Regulation 41/04 prescribes the conditions under which a transmitter is not required to obtain an OEB licence.
Related Rules, Codes and Procedures
Ontario Energy Board Rules of Practice and Procedure
Transmission System Code
Distribution System Code
Entry into the IESO-Administered Markets
All entities that intend participating in any of the IESO-administered markets or the Ministry of Energy's Renewable Energy Supply Contract Initiative or cause or permit electricity to be conveyed into, through or out of the IESO-controlled grid must become a registered market participant. The Market Entry Step-by-Step Guide explains what you need to do to join our markets.
Before your facility becomes operational, you will be required to become an authorized market participant with the IESO. If you are already a market participant, you must register your new generation facility and its associated revenue metering with the IESO.
A number of documents are available to assist you in becoming an authorized market participant, including:
One of the requirements in becoming an authorized market participant is to obtain an Ontario Energy Board (OEB) Generators Licence which may take several months. We recommend you apply for this as soon as possible. Information relating to the application for licence is available on the OEB web site.
Following the connection assessments process, you will be required to register your facility and meters with the IESO. Organizations with facilities wishing to participate in the IESO-administered markets must register their facilities with the IESO.
Information on registering your facilities is available at:
Following the connection assessments process, you will be required to register your facility and meters with the IESO. Market participants are responsible for installing and maintaining the metering, the accuracy and reliability of the metering data, and for the security of the metering data on-site. Meters used for settlement purposes in the IESO-administered markets must be registered with the IESO.
Information on registering your meters is available at:Back to diagram
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