State Estimator Redaction Task Force

Progress Report to WMS/ROS6/15/2011

Draft Comments on NPRR 327

• Group met twice since the last WMS to finalize the comments for NPRR 327 and the methodology

• NDSWG has been involved in developing comments• Developed methodology to redact confidential

information for generation resources and load stations.

• Protocol is consistent with language in PUCT Rule in which “resource-specific output levels or offer curves could not continually and systematically be derived.”

• Protocol allows TSPs and DSP access all State Estimator date real-time (not redacted version)

WMS Decision in June

• Endorse submitting the comments for NPRR 327 with following decision points:– ERCOT shall post redacted version of State

Estimator data every 5 minutes, 12 hours, 24 hours OR 48 hours

– If ERCOT validates a request to remove a data element, ERCOT will have X hours to remove the element or turn off the report

• Withdraw NPRR 373, because better addressed in our comments in NPRR 327