ERCOT·WATCH Search ercot.com  ⌕
NPRR #290 · Revision Request

NPRR290  ERCOT Publication of DAM PSS/E Files

Approved sponsor Henry Durrwachter on behalf of Luminant Energy Company LLC posted 2010-10-27 ercot.com
ReasonThe original intent of the Market Participants was to have incremental updates published by ERCOT on a daily basis so that they could properly model the ERCOT System and replicate the DAM solution. ERCOT has stated in the Nodal Advisory Task Force (NATF) meetings and through the "Networking Modeling Expectations for TSP, REs, and QSEs" whitepaper that it will not be able to comply with the Protocol requirement to provide daily model updates. Therefore, to provide Market Participants the transparency and ability to review the implied power flows of the DAM solution, this NPRR adds a requirement for ERCOT to post daily on the Market Information System (MIS) Public Area a package of transmission data files in PSS/E format that describe each hour’s associated transmission system topology (including contingencies) and mapping of generators, Loads, transmission lines, transformers, and Hubs.
Created2010-11-18
Approved2011-04-19
Sections Affected
4.2.3
Summary
This Nodal Protocol Revision Request (NPRR) enhances transparency of the transmission topology (including all scheduled Outages) used in the Day-Ahead Market (DAM) by requiring ERCOT to publish certain data files (in Power System Simulator for Engineering (PSS/E format) for easy review by all Market Participants with standard power flow tools such as PTI PSS/E, Power World Simulator, etc. Much of the tools needed by ERCOT to meet the requirements of this NPRR were developed and semi-automated during the Nodal DAM market trials and this NPRR seeks to leverage that work for long term market benefit.
Action Log 6 milestones
Amendments
DateBodyMotionResult
Jan 20 '11PRS To recommend approval of NPRR290 as amended by the Luminant Energy comments and as revised by PRS.Passed
Feb 17 '11PRS To endorse and forward the 1/20/11 PRS Report as amended by the 2/16/11 ERCOT comments, Impact Analysis and Cost Benefit Analysis for NPRR290 to TAC with a recommended priority of High and a rank of 13.Passed
Mar 3 '11TAC To recommend approval of NPRR290 as recommended by PRS in the 2/17/11 PRS Report as revised by TAC.Passed
Documents 17
NameTypePostedClassification
290NPRR-01 ERCOT Publication of DAM PSSE Files 102810 doc Oct 28 '10 Revision Request
290NPRR-02 CEO Revision Request Review 102810 doc Oct 28 '10 Revision Request Comments
290NPRR-03 Luminant Energy Appeal 111010 doc Nov 10 '10 Revision Request Comments
290NPRR-04 LCRA Comments 111210 doc Nov 12 '10 Revision Request Comments
290NPRR-05 Board Report 111610 doc Nov 16 '10 Committee Report
290NPRR-06 PRS Report 111810 doc Nov 23 '10 Committee Report
290NPRR-07 PRS Report 121610 doc Dec 20 '10 Committee Report
290NPRR-08 ERCOT Comments 011411 doc Jan 14 '11 Revision Request Comments
290NPRR-09 Luminant Energy Comments 011911 doc Jan 19 '11 Revision Request Comments
290NPRR-10 PRS Report 012011 doc Jan 24 '11 Committee Report
290NPRR-11 ERCOT Comments 021611 doc Feb 16 '11 Revision Request Comments
290NPRR-12 Impact Analysis 021611 doc Feb 24 '11 Staff Report
290NPRR-13 Cost Benefit Analysis 021611 xls Feb 16 '11 Staff Report
290NPRR-14 PRS Report 021711 doc Feb 21 '11 Committee Report
290NPRR-15 TAC Report 030311 doc Mar 3 '11 Committee Report
290NPRR-16 Revised Cost Benefit Analysis 040811 xls Apr 8 '11 Staff Report
290NPRR-17 Board Report 041911 doc Apr 21 '11 Committee Report
Meetings That Took It Up 8
DateMeetingCommitteeStatus
Apr 19 '11 Board of Directors Meeting BOARD Concluded
Mar 3 '11 TAC Meeting TAC Concluded
Feb 17 '11 PRS Meeting PRS Concluded
Jan 26 '11 Joint CWG/MCWG Meeting CREDITWG Concluded
Jan 20 '11 PRS Meeting PRS Concluded
Dec 16 '10 PRS Meeting PRS Concluded
Nov 18 '10 PRS Meeting PRS Concluded
Nov 16 '10 Board of Directors Meeting BOARD Concluded