Hydro One Sault Ste. Marie Limited Partnership (HOSSM) has applied to the Ontario Energy Board (OEB) for approval of the use of its 2026 OEB-approved base revenue requirement of $49.2 million on an interim basis for 2027, effective January 1, 2027. HOSSM’s OEB approved total revenue requirement for 2026 was $44.4 million, which was comprised of the base revenue requirement minus a $4.8 million offset related to an earnings sharing mechanism (ESM). HOSSM intends to apply for rebasing for 2027 and 2028 as part of a joint rebasing application with Hydro One Distribution and Hydro One Transmission (the JRAP 2028 application) and would seek approval of a proposed 2027 revenue requirement on a final basis in that proceeding. HOSSM has also proposed that its deferral and variance account balances, including the balance in HOSSM’s ESM account relating to 2025, and any ESM balance relating to 2026, will be disposed of as part of the JRAP 2028 proceeding.
HOSSM has requested that the current application be decided without a hearing. If you prefer that the OEB schedule a hearing, you can request one by filing a letter setting out the reasons for your request with the OEB no later than June 22, 2026. You should indicate whether you have a preference for the hearing to be oral, electronic or written. If you do not file a letter by the due date, you will not receive any further notice in the event the OEB proceeds with a hearing. If you submit a letter, your name and the content of your letter will be put on the public record and the OEB website.
Type: Rates
This application will be heard using the Complex Incentive Rate-setting Mechanism performance standard (pdf). View an expanded timeline (pdf) of the procedural steps for this Rates application.
Find out more about OEB Performance Standards for Processing Applications and use the Application Planning Tool to assist you with an estimate of the milestones in this proceeding.
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Participate
There are three ways to participate in the OEB hearing process: as an Intervenor, submitting a Letter of Comment or to Follow a Proceeding.
This table illustrates the different levels of participation. Find out more about participating in an OEB hearing, including becoming an intervenor.
| Participation Activities | Intervenor | Letter of Comment | Follow a Proceeding |
|---|---|---|---|
| Receive OEB-issued documents by email |  |  | |
| Submit a Letter of Comment | | | |
| Listen to live broadcast of the oral hearing | | | |
| Participate in oral hearing | | | |
| Present Evidence | | | |
| Respond to questions about evidence | | | |
| Ask other parties to the proceeding questions | | | |
| Provide argument | | | |
Submit a letter of comment
You can submit a letter of comment that will be considered by the panel deciding the application. Unless the notice states otherwise, your letter of comment will be accepted until the record of the proceeding is closed (which usually occurs with the filing of the applicant’s final reply argument). However, you are encouraged to submit your letter as early in the process as you can. Depending on timing of receipt of letters of comment, the applicant will typically provide a respond to the issues raised in those letters. Your letter will be provided directly to the panel of Commissioners who will be deciding whether the application is approved. The panel will consider your comments in reaching their decision. The panel will only be able to consider comments which relate to issues which are within the authority of the OEB and relevant to the issues being considered by the panel.
More about commenting and privacy
All letters of comment sent to the OEB are placed on the public record. This means the letters will be placed on our website. Before the letter of comment is placed on the public record, personal contact information contained in the address, phone number, and email address fields of this form is removed. The individual's name and the content of the letter will become part of the public record.
If you would like a response from the applicant, please send a copy of your letter directly to the applicant, including your personal contact information. The OEB removes your personal contact information from your letter for privacy reasons before it is posted to our website.