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Cabin Creek Landslide

A large landslide on Friday near Cabin Creek on Snoqualmie Pass caused significant damage to transmission lines that go through the area. Crews worked over the weekend to assess damage including flying drones. Access is limited and assessments are ongoing as to whether crews can safely work in the area.

While the landslide caused damage to PSE’s high voltage lines, there are no customers currently out of power as a result of this incident. Customers in the Hyak and Easton areas are being supplied power through the redundant high voltage lines, which currently have no alternative circuit configurations from the east

With more rain and wind forecasted this week, there is a concern of prolonged power outages if the active high voltage lines are impacted.

Watch pse.com/alerts for information in the event of an outage and follow the safety tips on that page if the power goes out.


alert 

Safety first. Never touch or go within 35 feet of downed power lines because they might be energized. Call PSE at 1-888-225-5773 or 911 to report problems.

Report and track power outages online

PSE OATT transmission rates

PSE employs the Formula Rate to calculate its base rates for Network Integration Transmission Service and Point-to-Point transmission service as found in Attachment H-1 and H-2 of the PSE Open Access Transmission Tariff (OATT). The Formula Rate is updated annually in accordance with the Protocols set forth in PSE OATT Attachment H-2. PSE employs an Annual Update Process, which refreshes the calculation of these rates by populating the Formula in the PSE OATT Attachment H-1 with prior-year information from PSE’s Federal Energy Regulatory Commission (FERC) Form No.1, other historical data, including additional detail and company records, and projected net capital additions for the current calendar year. The Annual Update begins each June 1.

PSE holds an Open Meeting each year to provide an opportunity for Interested Parties to obtain information about the Annual Update.

Transmission system details can be found on the PSE OASIS page.