This site is designed to display the latest available SPP Market Data. Real-time data is updated every 5 minutes when available. Day-ahead is updated daily between 4 and 5 PM CST. Delta values are calculated using the RTBM LMP value for the current interval minus the DA LMP value ending in the same hour (RTBM LMP - DA LMP = DELTA).
Real-Time
Day-Ahead
RTBM/DA Delta
Gen Mix
Load
Interchange