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Transmission Availability

Transmission Services provides information to assist customers as they reserve and schedule transmission.

Short-Term Availability Transfer Capability

The Short-Term Calculators utilize "All Lines in Service" PTDFs and may not reflect the same results as BPA's OASIS, which considers transmission outages. 

Outage & Interruption Information:
Notice: Nomograms are now available in the BPA Customer Portal. If you do not currently have Customer Portal access, please contact the BPA Customer Portal Support  team at and/or 503-230-4226 or your Transmission Account Executive for more information about getting access to the BPA Customer Portal.