Wallula Area Expansion (L0420)

Wallula Area Expansion is a 40.0 MW other interconnection project in Walla Walla, Washington with a current status of operational. It is proposed to connect at Lower Monumental-McNary 500 kV line or Sacajawea Substation.

40.0 MWCapacity
OperationalStatus
WAMarket
OtherTechnology

Project facts

Canonical nameWallula Area Expansion
Queue IDL0420
Statusoperational
Source statusBPA COMPLETED
MarketWA
TechnologyOther
Capacity40.0 MW
StateWashington
CountyWalla Walla
Point of interconnectionLower Monumental-McNary 500 kV line or Sacajawea Substation
Requested (queue) date2017-10-18
Proposed in-service date
Operational date2019-10-18
Withdrawn date
DeveloperColumbia Rural Electric Association
Utility / transmission ownerBonneville Power Administration

What changed

ObservedFieldOld valueNew valueMateriality
2026-08-04new_projectoperationalhigh

Explore related data

Source last checked2026-08-04
Data last materially changed2026-08-04
Page data generated2026-08-27

Provenance: bpa-oasis. Values are normalized from public source records into the interXdata canonical warehouse; see each source for original filings.

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