NPRR #228 · Revision Request

NPRR228 Resolution of Alignment Items A2, A80, A83 and A93 - As-Built Treatment and Settlement of Combined Cycle Generation Resources in ERCOT Market Systems

Approved sponsor ERCOT posted 2010-04-22 ercot.com

ReasonThis NPRR aligns the Nodal Protocol language with as-built system design for Combined Cycle Generation Resources.

Created2010-05-20

Approved2010-08-17

Sections Affected

2.12.23.83.8.1 (new)3.8.2 (new)3.9.13.9.24.5.14.6.1.4 (new)4.6.2.3.14.6.4.1.14.6.4.1.24.6.4.1.34.6.4.1.45.7.15.7.1.15.7.1.25.7.1.35.7.1.45.7.25.7.35.7.45.7.4.15.7.4.1.15.7.55.7.66.5.5.26.6.1.16.6.3.16.6.56.6.5.16.6.5.1.16.6.5.1.26.6.5.26.6.5.36.6.5.46.6.6.16.6.6.26.6.6.36.6.6.46.6.7.16.6.8.16.6.9.16.7.17.9.3.1

Summary

This Nodal Protocol Revision Request (NPRR) revises the Nodal Protocol language to include a description of the treatment and Settlement of Combined Cycle Generation Resources in the ERCOT Day-Ahead, reliability and Real-Time systems. The design change for the Combined Cycle upgrades are described in the documents located at the following URLs: "Combined Cycle Plants", http://nodal.ercot.com/docs/pd/ida/sig/SIG0003/sig0003_combined_cycle_plants_v5_0.doc; "Transmission Constraint Modeling for RT CCP Dispatch", http://nodal.ercot.com/docs/pd/ida/sig/SIG0022/sig0022_trans_constraint_mod_RT_ccp_disp_v4.doc; "Combined-Cycle Unit Modeling in the Nodal Design", http://nodal.ercot.com/docs/pd/ida/wp/ccum/ida003_combined_cycle_unit_modeling_in_the_nodal_design_v3.doc. The Combined Cycle Train design change described in the above documentation has extensive impacts on ERCOT systems and processes in the areas of Registration, Management Activities (COP and Outage Scheduler), the Day-Ahead Market (DAM), the Supplemental Ancillary Services Market (SASM) and the Reliability Unit Commitment (RUC) processes; and Settlements and Billing. This NPRR adds clarifying language to explain the "as built" system implementation of the conceptual elements of the Combined Cycle Train design change consistent with the existing Protocol treatment of all other Generation Resource types.

Timeline

Apr 22 '10
PRSFiled by ERCOT
May 20 '10
PRS PRS Meeting
PRSDeferred/Tabled Tabled
“To table NPRR228 for one month.” — Passed

→ PRS language consideration
- 228NPRR-01 Resolution of Alignment Items A2, A80, A83 and A93 - Apr 23 '10 · Revision Request
- 228NPRR-02 CEO Revision Request Review 042310 Apr 23 '10 · Committee Report
- 228NPRR-03 Impact Analysis 042310 Apr 23 '10 · Staff Report
- 228NPRR-04 ERCOT Comments 051810 May 18 '10 · Revision Request Comments
Jun 17 '10
PRS PRS Meeting
PRSRecommended for Approval Recommended for approval Amended by the May 18 '10 ERCOT comments
“To recommend approval of NPRR228 as amended by the 5/18/10 ERCOT comments as revised by PRS.” — Passed

→ PRS Impact Analysis review
- 228NPRR-05 PRS Report 052010 May 24 '10 · Committee Report
Jul 22 '10
PRS PRS Meeting
PRSRecommended for Approval Recommended for approval Forwarded → TAC
“To endorse and forward the 6/17/10 PRS Report and Impact Analysis for NPRR228 to TAC.” — Passed

→ TAC consideration of NPRR228
- 228NPRR-06 PRS Report 061710 Jun 21 '10 · Committee Report
Aug 5 '10
TAC TAC Meeting
TACRecommended for Approval Recommended for approval Amended by the Jul 22 '10 PRS comments
“To recommend approval of NPRR228 as recommended by PRS in the 7/22/10 PRS Report and as revised by TAC.” — Passed

→ ERCOT Board consideration of NPRR228.
- 228NPRR-07 PRS Report 072210 Jul 28 '10 · Committee Report
- 228NPRR-08 TAC Report 080510 Aug 5 '10 · Committee Report
Aug 16 '10
BOARDEmail Vote / Unlisted Meeting
BOARDApproved Recommended for approval
“To approve NPRR228 as recommended by TAC in the 8/5/10 TAC Report” — Passed
Aug 17 '10
BOARDEmail Vote / Unlisted Meeting
BOARDApproved Approved
“To approve NPRR228 as recommended by TAC in the 8/5/10 TAC Report.” — Passed
- 228NPRR-09 Board Report 081710 Aug 17 '10 · Committee Report