Transmission Services

BPA Transmission Services delivers energy across 15,000 miles of high-voltage transmission wire across the Pacific Northwest and beyond. BPA Transmission is committed to being a dependable, responsive business partner that proactively navigates a changing environment to achieve economic and reliability benefits for our customers and the region. Transmission Services is committed to the following practices:
  • Streamlining and modernizing processes and systems to support enhanced situational awareness and data-driven decision-making.
  • Offering open access transmission service through standardized and value-based products.
  • Supporting a culture of innovation and continuous improvement.

Transmission - Contact Information

large transmission towers in a green field with a snow-capped mountain in the background

Doing Business

This section includes information on how to become a customer and guidance, training and notices on maintaining the customer relationship.

Sunset for Interconnection

Products & Services

This section includes information on interconnection; PTP, NT and ancillary services; telecommunications and related projects.

transmission lines on rocky hillsides

Operations & Reliability

This section includes information on outages, operations and risk mitigation. 

transmission lines set against a dark, stormy sky

Reports & Tools

This section includes information on transmission availability, performance and other metrics. 

Latest News & Events

See all BPA events

Business Practice: Line and Load Interconnection Procedures V4

Bonneville will review proposed Category B changes to this business practice.

Load Area Reinforcement Study Process Meeting

This meeting has been rescheduled to the afternoon of June 15, 2026 to allow for broader customer participation, particularly for public utility districts and others who may not be available on Fridays.

Current Initiatives

Commonly Asked Questions

Related Pages