ERCOT North DC tie
ERCOT ↔ SPP · Back-to-back HVDC converter
A back-to-back converter at Oklaunion near Vernon, Texas, linking ERCOT to SPP across the Red River.
Operator readings
Compare each operator’s reading at its stated time. Scheduled transfers and metered physical flow measure different things.
- As ERCOT reports it
- 22 MW · ERCOT → SPP
Current reading · as of Nov 11, 10:40 AM CST
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: ERCOT → SPP. Below: the reverse.
- Usual direction
- SPP → ERCOT in 80% of hours
10% out, 80% in, 10% idle across 720 hours
- Average
- 127 MW · SPP → ERCOT
- When busy
- 219 MW
95th percentile of hourly flow either way
- Peak ERCOT → SPP
- 223 MW
- Peak SPP → ERCOT
- 219 MW
- Direction changes
- 35
- Hours near its rating
- 332 of 720
At 95% or more of 220 MW
Hardware
Its terminals, placed from named HIFLD substations or other cited geospatial sources where available.
- Converter
- Oklaunion, TX
Not in HIFLD's dataset
Sources and method
Readings come from ERCOT 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 ERCOT. 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.