Title Real-Time ICCP Communications Only
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Status Approved on 05/16/2007
Effective Dates

or per the Nodal Protocol Transition Plan http://www.ercot.com/mktrules/protocols (06/01/07 Nodal Protocols Library)

Voting Record

Date Gov Body Motion Result
06/28/2007 TAC No Action.
06/12/2007 PRS To recommend approval of B1G1 Impact Analysis Passed
05/16/2007 BOARD Approve NPRR046 as recommended by TAC. Passed
05/04/2007 TAC Recommend approval of NPRR046 as recommended by PRS. All Market Segments were present for the vote. Passed
04/20/2007 PRS Forward the Recommendation Report and IA to TAC for approval Passed
03/22/2007 PRS Recommend approval of NPRR046 as revised by ERCOT comments Passed


Status: Approved
Date Posted: Feb 27, 2007
Sponsor: ERCOT
Urgent: No
Sections: 3.10.4,, 6.3.2,,,,
Description: This NPRR revises how QSEs and TSPs communicate with ERCOT in Real-Time. This Revision Request requires that all Real-Time communications use Inter-Control Center Protocol (ICCP) for all communications. This will retire the existing RTU infrastructure used by ERCOT and its market participants for data exchange. Market transactions using XML and/or MIS, and RTU communications between Market Participants and their field equipment, will remain unchanged.
Reason: A study conducted by ERCOT, with the assistance of KEMA consulting, concluded that the existing RTU technology cannot support the required volume of data in a timely manner. The study also concluded that ICCP is the only technology that can support the data quality requirements.

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