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Website · About · Legal · Privacy · Changelog · © 2026 Parisi Labs
  1. Home
  2. /Assets
  3. /Interties
  4. /Northern Intertie
BPA logo

Northern Intertie

BPA ↔ British Columbia · AC transmission

The 500 kV lines between BC Hydro's Ingledow and BPA's Custer substation near Bellingham, Washington.

Now
1,597 MWBritish Columbia → BPA
BPA · as of Sep 26, 11:10 AM PDT
Between
BPA and British Columbia
Technology
AC transmission
Voltage
500 kV
Published by
BPA
Open on the map

What it is carrying

Each operator's own reading, turned into a direction. Where both markets publish the tie, the two should agree.

As BPA reports it
1,597 MW · British Columbia → BPA

limit this way 2,400 MW · as of Sep 26, 11:10 AM PDT

Last 30 days

Hourly flow, signed so that up is power leaving the market.

As BPA reports it-1,605MW
-608-1,592-2,577Aug 27, 11 AMSep 26, 11 AM

Above zero: BPA → British Columbia. Below: the reverse.

Hardware

Its terminals. US terminals are placed on the substation HIFLD's national dataset names for them.

Substation
Ingledow, British Columbia

In Canada, outside HIFLD's coverage

Substation
Custer, WA

48.9043, -122.6254 · 500 kV

Related interties

  • California–Oregon Intertie
    BPA ↔ California
  • Pacific DC Intertie
    BPA ↔ California
  • Montana–Northwest
    BPA ↔ Montana
Usual direction
British Columbia → BPA in 100% of hours

0% out, 100% in, 0% idle across 721 hours

Average
1,923 MW · British Columbia → BPA
When busy
2,351 MW

95th percentile of hourly flow either way

Peak BPA → British Columbia
0 MW
Peak British Columbia → BPA
2,441 MW
Direction changes
0
The average day
0:006:0012:0018:0023:00
Mean flow by the market's local hour. Up: BPA → British Columbia. Down: British Columbia → BPA.