About the project

Rate Framework for Single-Asset Transmitters

A key focus of the update is to provide guidance on the revenue requirement framework for the growing number of single-asset transmitters now operating in Ontario. Specifically, it aims to clarify the expectations for Custom Incentive Rate-setting (Custom IR) applications required to support filings under this approach.

Effective Date and Future Developments

The updated Filing Requirements are proposed to apply to transmission rebasing applications for 2027 rates.

These updates reflect current legislative and OEB policy frameworks, as well as general regulatory practices. The OEB also recognizes that the transmission sector is evolving. Accordingly, future changes such as the introduction of a Transmission Selection Framework by the Independent Electricity System Operator may necessitate further revisions.

The OEB intends to review these Filing Requirements every five years to ensure they remain fit for purpose.