{
 "aliases": [
  {
   "note": "Curated from BPA's OPI Paths page, ATCID and Transmission Plan; WECC path number where one applies",
   "relation": "exact",
   "review_state": "reviewed",
   "source_entity_id": "northern-intertie",
   "source_ref": "bpa-paths"
  }
 ],
 "bbox": [
  -122.72410022221815,
  48.90456728313648,
  -117.34351151639747,
  49.001901861070806
 ],
 "citation_path": "citations/path~bpa~northern-intertie.html",
 "direction": "south to north positive (BPA exports to BC positive; N-S TTC series negative)",
 "facts": [
  {
   "basis": "BPA's published TTC series for the path (mode over the 30-day OPI window) or the WECC path rating where BPA publishes none; a directional operating limit, not a sum of line ratings",
   "coverage": null,
   "denominator": null,
   "evidence": "reported",
   "fact_id": "path:bpa:northern-intertie#path_ttc_mw",
   "label": "Total transfer capability",
   "locator": "bpa_paths.csv; path_id=northern-intertie; source=https://www.wecc.org/sites/default/files/documents/progress_report/2026/2026%20Path%20Rating%20Catalog%20Public.pdf",
   "maturity": "final",
   "method": "curated",
   "metric": "path_ttc_mw",
   "missing_reason": null,
   "note": "BPA OPI TTC series 2026-08-18..09-17: N-S TTC mode 2,400 MW (range 1,200-2,600), S-N TTC mode 2,500 MW (range 2,000-2,500); WECC Path 3 accepted rating 3,150 MW N-S / 3,000 MW S-N",
   "period": {
    "as_of": "2026-09-18",
    "kind": "instant",
    "note": "Published limit on the review date; BPA's OPI TTC series varies by season and outage"
   },
   "precision": 0,
   "quality": "valid",
   "source_ref": "bpa-paths",
   "unit": "MW",
   "value": 2400.0
  }
 ],
 "geometry": {
  "from": "Custer / Boundary",
  "mode": "lines",
  "note": "Drawn as the named BPA lines",
  "to": "Ingledow / Nelway / Waneta (BC)"
 },
 "id": "path:bpa:northern-intertie",
 "kind": "intertie",
 "kind_label": "Intertie",
 "lines": [
  {
   "id": "line:bpa:CUST-INGL-1",
   "name": "Custer-Ingledow No 1",
   "type": "line",
   "voltage_class": "500",
   "voltage_kv": 500.0
  },
  {
   "id": "line:bpa:CUST-INGL-2",
   "name": "Custer-Ingledow No 2",
   "type": "line",
   "voltage_class": "500",
   "voltage_kv": 500.0
  },
  {
   "id": "line:bpa:BOUN-NELW-1",
   "name": "Boundary-Nelway No 1",
   "type": "line",
   "voltage_class": "230",
   "voltage_kv": 230.0
  },
  {
   "id": "line:bpa:BOUN-WANA-1",
   "name": "Boundary-Waneta No 1",
   "type": "line",
   "voltage_class": "230",
   "voltage_kv": 230.0
  }
 ],
 "live": {
  "note": "Five-minute actual flow and TTC from BPA's OPI feed",
  "series": "live/series/bpa-path-ni.json",
  "source": "bpa-path-ni"
 },
 "name": "BC Intertie",
 "note": "BPA chart title Northern Intertie; ATCID V88 1:1 path NI_TOTL; western component Custer-Ingledow, eastern component Boundary-Nelway (normally closed) and Boundary-Waneta (normally open); BPA SOL series ignores ownership shares (BC.xlsx notes); PI point 36885 A path is a metered cut plane; its TTC is a directional operating limit for the whole path, never a rating of any single line, and flow on it is not attributable to one line.",
 "release_id": "20260929T050546Z-51ae0f7d3c78",
 "schema_version": "1.41.0",
 "source": {
  "publisher": "WECC",
  "reviewed_on": "2026-09-18",
  "reviewer": "claude-1d5",
  "url": "https://www.wecc.org/sites/default/files/documents/progress_report/2026/2026%20Path%20Rating%20Catalog%20Public.pdf"
 },
 "source_name": null,
 "sources": [
  "bpa-lines",
  "bpa-paths"
 ],
 "type": "path",
 "updated_reason": null,
 "wecc_path": "Path 3"
}