1. Item 3: PRS Report John Varnell 2013 PRS Chair Technical Advisory Committee (TAC) Meeting ERCOT Public November 7, 2013

2. 2 Revision Requests Recommended for Approval by PRS – With No Opposing Votes (Vote): NPRR528, Clarification of Assessment of Chronic Congestion NPRR529, Congestion Management Plan NPRR541, SPS and RAP Modeling Clarification NPRR542, Clarification of the Use of Emergency Condition NPRR558, Addition of Bilateral Load Response Data to Protected Information List NPRR561, Clarification of Shutdown Telemetry Status NPRR565, Seasonal Generation Notifications NPRR566, Removal of Language Regarding QSE Service Filings NPRR568, Real-Time Reserve Price Adder Based on Operating Reserve Demand Curve – U RGENT NPRR570, Reduce RTM Settlement Timeline to Operating Day Plus Five – U RGENT Summary of PRS Update

3. Item XXX ERCOT Public 3 Revision Requests Recommended for Approval by PRS – With Opposing Votes (Vote): NPRR540, Clarification of Credible Single Contingency (Vote)* NPRR564, Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions – U RGENT (Vote) Addition of Emergency Response Service Procurement Methodology to Other Binding Documents List Summary of PRS Update

4. 4 Revision Requests Recommended for Approval by PRS (with Opposing Votes)

5. 5 NPRR540, Clarification of Credible Single Contingency Purpose (OWG) This NPRR revises the use of Credible Single Contingency to align with actual practice. PRS Vote On 7/18/13, PRS voted to recommend approval of NPRR540 as amended by the 7/10/13 ERCOT comments and as revised by PRS. There were three opposing votes from the Independent Generator (2) and IPM Market Segments, and one abstention from the IREP Market Segment. On 10/17/13, PRS unanimously voted to endorse and forward the 7/18/13 PRS Report and the Impact Analysis for NPRR540 to TAC. Effective Date/Priority January 1, 2014 ERCOT Impact No impacts. Business Case Highlights Aligns the Protocols with actual practice.

6. 6 NPRR564, Thirty-Minute Emergency Response Service (ERS) and Other ERS Revisions - U RGENT Purpose (ERCOT) This NPRR proposes a 30-minute ERS product and recommends other changes to ERS more generally. PRS Vote On 10/17/13, PRS voted to recommend approval of NPRR564 as amended by the 9/10/13 ERCOT comments and as revised by PRS with a recommended priority of 2013 and rank of 892. There were three opposing votes from the Consumer, Independent Generator and IPM Market Segments and two abstentions from the IOU Market Segment. Effective Date/Priority December 1, 2013 for interim solution utilizing manual business processes. The long-term solution will require a project for automation – Priority 2013; Rank 892 ERCOT Impact $50k - $75k; impacts to MMS, ISM, and EI; ERCOT business functions will be updated; ERCOT grid operations and practices will be updated. Business Case Highlights Increase system reliability by adding Demand response capability; manpower savings; clarification of deployment obligations and reducing compliance issues.

7. 7 Additional PRS Items for Discussion

8. 8 PRS voted to recommend that the WMS-endorsed Emergency Response Service Procurement Methodology be added to the Other Binding Documents List. There were three opposing votes from the IPM, Independent Generator, and Consumer Market Segments and two abstentions from the IOU and IREP Market Segments. Addition to Other Binding Documents List