Settlement pointERCOT · SouthCentral zonenode:RIONOG_ST1
RIONOG_ST1
RIONOG_ST1 is an ERCOT settlement point in ERCOT's SouthCentral zone near Rio Nogales Power Project and Niagara Bottling - Seguin. It records locational marginal prices at this point on the grid; Ask the Grid tracks its five-minute real-time prices, day-ahead prices, historical price shape, and 24-hour Metiscast forecast.
Asset facts
Market identity, price telemetry, and nearby grid context.
- Settlement point
- Settlement point
ERCOT market identifier RIONOG_ST1.
- Grid location
- SouthCentral zone
Map coordinate 29.5938, -97.9736.
- Nearest power plant
- Rio Nogales Power Project
0.1 miles away · 792 MW · natural gas
- Price record
- 167,891 price intervals · avg $34/MWh · 365 day window
Real-time LMP, day-ahead price, hourly shape, and fleet-relative statistics.
Local grid context
Assets and settlement points nearest this location in ERCOT's South Central zone.
Nearby power plants
Price behavior
Real-time price history, price shape, and fleet-relative statistics.
Latest real-time LMP
$25.87$/MWh
Jul 21, 7:00 PM UTC
ERCOT day-ahead prices are market settlements, not model predictions. Error statistics compare completed delivery hours with hourly real-time LMP averages.
Settlement pointmoderate volatility
- Zone
- SouthCentral
- Location
- 29.594, -97.974
- Node id
- RIONOG_ST1
Price statistics
167,891 intervalsAvg $/MWh
$34
Median
$26
99th pct
$168
Max spike
$1,380
Spikes > $1000
39
% negative
1.9%
Average price$34/MWh
$0more expensive than 80% of nodes$39+
Volatility$41/MWh
$0more volatile than 62% of nodes$58+
Negative-price hours1.9%
0.0%more often negative than 19% of nodes16.9%+
Average price by hourlocal time · trailing 90 days
0:006:0012:0018:0024:00
Recent pricehourly average · last 14 days
RIONOG_ST1 RT LMP25.87$/MWh