The SPP values include the 15-minute online reservation prices and the price of implementing real-time online reliability. ERCOT offers daily market prices (DAM) and real-time market prices (RTM) at intervals. In addition, ERCOT has compiled the prices at DAM and RTM settlement points (SPP) for each of the charging centers and zones per calendar year. ERCOT monitors DAM, SCED and SASM prices to detect errors.
ERCOT makes price corrections without the approval of the ERCOT Board if they are made before market prices are final. Once market prices are final, if ERCOT determines that prices need to be corrected, it will notify market participants and describe the need for such correction. Market prices cannot be changed unless the ERCOT Board determines that prices are significantly affected by a software or data error. The date can be today, most recent, or a panda's timestamp.
Daily Market Data (DAM) is published daily, so date= latest is not compatible with DAM.