California–Oregon Intertie
BPA ↔ California · AC transmission
The 500 kV AC lines from Malin, Oregon into northern California, which carry Northwest hydro south and California solar north.
Operator readings
Compare each operator’s reading at its stated time. Scheduled transfers and metered physical flow measure different things.
- As BPA reports it
- 764 MW · BPA → California
Delayed publication · limit this way 4,475 MW · as of Nov 10, 12:00 AM PST
- As CAISO reports it · scheduled
- 44 MW · California → BPA
Current reading · as of Nov 10, 3:30 PM PST
Last 30 days
Hourly readings, signed so that up is power leaving the market. Each series identifies whether it measures flow or a transfer schedule.
Above zero: BPA → California. Below: the reverse.
- Usual direction
- California → BPA in 53% of hours
47% out, 53% in, 1% idle across 705 hours
- Average
- 151 MW · California → BPA
- When busy
- 2,116 MW
95th percentile of hourly flow either way
- Peak BPA → California
- 2,023 MW
- Peak California → BPA
- 2,928 MW
- Direction changes
- 60
Hardware
Its terminals, placed from named HIFLD substations or other cited geospatial sources where available.
- Substation
- Malin, OR
42.0061, -121.3166 · 500 kV
- Substation
- Round Mountain, CA
40.8080, -121.9356 · 500 kV
Sources and method
Readings come from BPA and CAISO interface readings. Each value is shown with its operator and source time; direction is normalized from that operator’s sign convention toward or away from BPA. A rating describes the equipment; an operator’s posted directional limit, when available, is a separate operating value. The map point identifies a sourced terminal or crossing where available, or a representative connection point; it does not trace the full route.