2025 Bulletin Index - September to December
We periodically post bulletins here to inform customers of developments within BC Hydro Transmission and/or the industry and/or to solicit feedback on policy changes. These announcements can be time sensitive, so please subscribe for the updates.
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Our Transmission Scheduling bulletins for 2025 are listed below. Select another year to the right to view bulletins from the archive.
View the 2025 bulletins
September to December
| Title | Bulletin date |
|---|---|
| OATT FERC 1920 - Transmission Planning and Cost Allocation | October 1, 4:46 p.m. |
| OATT Attachment M Transmission Line Ratings Application | October 1, 4:39 p.m. |
| Quarterly Study Metrics Posted | October 1, 9:29 a.m. |
| Forced Outage Indices Posted | September 23, 9:12 a.m. |
| Fortis Transmission Planing Study | September 12, 2:13 p.m. |
| “Submitting Energy Schedules” Business Practice | September 9, 12:34 p.m. |
OATT FERC 1920 - Transmission Planning and Cost Allocation
Posted on October 1, 4:46 p.m.
British Columbia Hydro and Power Authority (BC Hydro) advises it is reviewing the potential costs, benefits, and customer impacts of adopting the reforms of FERC Order 1920 and its relevance to operations in B.C. Information and lessons learned from recent studies and planning activities will be gathered to inform decisions related to FERC Order 1920. More information will be issued once this further assessment is done.
Background:
On May 13, 2024 and November 21, 2024, the Federal Energy Regulatory Commission (FERC) issued Order No. 1920 and Order No. 1920-A (collectively the “Orders”) respectively. The Orders build upon electric transmission planning and cost allocation requirements developed over the last several decades in Order No. 888, Order No. 890, and Order No. 1000. The Orders direct transmission providers to adopt reforms to cost allocation processes and improve long-term (at least 20 years) assessments of transmission needs to adequately prepare for the future of the electric grid.
Additionally, on April 11, 2025, the Commission issued a second rehearing order, Order No. 1920-B which affirms that state regulators will be key decision makers.
OATT Attachment M Transmission Line Ratings Application
Posted on October 1, 4:39 p.m.
Further to the bulletins posted on June 27, 2025, and July 30, 2025, the BC Utilities Commission (BCUC) approved BC Hydro’s application to amend its Open Access Transmission Tariff (OATT) to incorporate a new Attachment M - Transmission Line Ratings effective April 1, 2027 along with other housekeeping amendments.
Attachment M will implement ambient-adjusted ratings on the transmission lines over which transmission service is provided under the OATT. The housekeeping amendments will clarify in section 1.53 of the OATT that the Transmission System includes only BC Hydro facilities operated at 60 kV or higher effective the date of BCUC’s order.
On September 24, 2025, the BCUC issued Order No. G-234-25 approving the above amendments.
Quarterly Study Metrics Posted
Posted on October 1, 9:29 a.m.
The quarterly study metrics for July 1, 2025 to September 30, 2025 has been posted, and can be viewed at the study metrics page.
Forced Outage Indices Posted
Posted on September 23, 9:12 a.m.
BC Hydro has posted Forced Outage Indices of BC Hydro’s Transmission Lines/Equipment for BR1, 60L030 & KIDD1. They can be viewed on our Technical Data website.
Fortis Transmission Planning Study
Posted on September 12, 2:13 p.m.
BC Hydro has received a request from Fortis BC to conduct a transmission planning study in Vaseux Lake Region of British Columbia. The study aims to evaluate the network upgrades necessary to accommodate an additional 450 MW of capacity at various points of interconnection. For more information regarding this study – please contact transmission.generators@bchydro.com.
"Submitting Energy Schedules” Business Practice
Posted on September 9, 12:34 p.m.
Further to the bulletin posted on August 14, 2025 and a comment period which ended on September 5, 2025, “Submitting Energy Schedules” and “Intra-Hour Scheduling of Transmission and Energy” Business Practices have been Consolidated and Combined. The business practice can be accessed on our website: https://www.bchydro.com/energy-in bc/operations/transmission/transmission-scheduling/business-practices.html