Rancho Seco
CAISO ↔ Sacramento area · Intertie scheduling point
CAISO’s RANCHOSECO intertie scheduling point. Its reading nets published import and export schedules across the balancing-area pairs using this point. The marker is at the named Rancho Seco substation.
Scheduled transfers
Compare each operator’s reading at its stated time. Scheduled transfers and metered physical flow measure different things.
- As CAISO reports it · scheduled
- 160 MW · Sacramento area → CAISO
as of Oct 15, 12:00 PM PDT
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: CAISO → Sacramento area. Below: the reverse.
- Usual direction
- Sacramento area → CAISO in 81% of hours
17% out, 81% in, 2% idle across 721 hours
- Average
- 175 MW · Sacramento area → CAISO
- When busy
- 499 MW
95th percentile of hourly scheduled transfers either way
- Peak CAISO → Sacramento area
- 450 MW
- Peak Sacramento area → CAISO
- 802 MW
- Direction changes
- 86
Hardware
Its terminals, placed from named HIFLD substations or other cited geospatial sources where available.
- Substation
- Rancho Seco, CA
38.3442, -121.1238 · 230 kV
Sources and method
Schedules come from 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 CAISO. 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.