ATC Methodology

Learn more about BPA's Available Transfer Capability Implementation Document (ATCID), ATC and Available Flowgate Capability (AFC) Methodologies for the Planning Time Period and other information pertaining to BPA's management and calculation of ATC and AFC.
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TSR Study & Expansion Process

The TSR Study and Expansion Process (TSEP) is BPA’s process to manage and respond to long-term firm transmission requests on the BPA network. TSEP was formerly known as Network Open Season (NOS).
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South of Allston Bilateral Redispatch Pilot

This two-year pilot launched in 2017 and helped provide information on how dependable generation redispatch and demand side management are at providing flowgate relief in the BPA balancing authority. This pilot was one of BPA's many initiatives to mitigate congestion on the South of Allston flowgate.
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Latest News & Events

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CANCELED: Strategic Plan Kick-Off

CANCELED: The previously scheduled June 1 meeting has been postponed to further develop materials and allow attendees more time to consider the materials in advance of the meeting. The rescheduled meeting date will be announced at a later date.

Public Comment Period Closes for Allston to Astoria Rebuild Project

A public comment period began on May 6, 2022 for BPA’s proposal to rebuild its existing approximately 22-mile-long Allston to Driscoll No. 2 and the approximately 21-mile-long Driscoll to Astoria No. 1, 115-kilovolt transmission lines. The comment period will close June 6, 2022.