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 CT.

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).

To view reserve zone data, hover over a reserve zone and click.