St Helens-Allston No 1

Entity line:bpa:STHL-ALSN-1 · release 20260929T050546Z-51ae0f7d3c78 · schema 1.41.0. Immutable citation page; values as published in this release. Current pages may be newer.

Fact	Value	Unit	Period	Evidence / method	Quality	Source and locator
Operating voltage	115.0	kV	2026-07-07	reported / derived	valid	bpa-lines BPA Transmission Lines (Public View), layer 0 BPA_TransmissionLines; OBJECTID=821233; GlobalID=82287e59-276b-49d8-9cca-f376fc1c49f8; XRefCd=STHL-ALSN-1; field=VoltageMeas
Operating voltage (raw source value, unit not declared)	115		2026-07-07	reported / direct	valid	bpa-lines BPA Transmission Lines (Public View), layer 0 BPA_TransmissionLines; OBJECTID=821233; GlobalID=82287e59-276b-49d8-9cca-f376fc1c49f8; XRefCd=STHL-ALSN-1; field=VoltageMeas

Sources

Bonneville Power Administration, Geospatial Services. Licence: Publisher terms (informational use). bpa-lines
Path definitions from BPA's OPI Paths page, ATCID V88 and 2025 Transmission Plan; ratings from BPA's OPI TTC series and the WECC 2026 Path Rating Catalog. Licence: Curation CC0; BPA and WECC documents are public. bpa-paths

Each source's notice and terms: rights.json in this release.