NPRR #193 · Revision Request
NPRR193 Application of Nodal Implementation Surcharge in Verifiable Costs
ReasonThe current Nodal Protocols allow Resources to include the Nodal Implementation Surcharge in the Minimum Energy costs as described Section 5.6.1.2, Verifiable Minimum-Energy Costs. However, Resources begin incurring the Nodal Implementation Surcharge as soon as they close the generator breaker while ramping to the LSL. And since costs at minimum energy are charged while the Resource is operating at the LSL, for the ramping period from breaker close to LSL these Nodal Implementation Surcharge costs are not being captured in the verifiable cost process. Therefore, the Verifiable Cost Working Group (VCWG) is submitting this NPRR to incorporate the Nodal Implementation Surcharge cost from breaker close to LSL into the Startup Costs.
Created2009-08-25
Approved2009-10-20
Sections Affected
5.6.1.1
Summary
This Nodal Protocol Revision Request (NPRR) allows Resources to include in their verifiable costs the Nodal Implementation Surcharge for periods while ramping up from breaker close to Low Sustained Limit (LSL).
Timeline
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Aug 17 '09
PRSFiled by Ino Gonzalez for the Verifiable Cost Working Group (VCWG) on behalf of the Wholesale Market Subcommittee (WMS)
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Aug 25 '09
PRS PRS MeetingPRSRecommended for Approval Recommended for approval“To recommend approval of NPRR193 as submitted.” — Passed→ PRS Impact Analysis review
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Sep 17 '09
PRS PRS MeetingPRSRecommended for Approval Recommended for approval Forwarded → TAC“To endorse and forward the 8/25/09 PRS Recommendation Report and Impact Analysis for NPRR193 to TAC.” — Passed→ TAC consideration of NPRR193
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Oct 1 '09
TAC TAC MeetingTACRecommended for Approval Recommended for approval“To recommend approval of NPRR193 as recommended by PRS in the 9/17/09 PRS Recommendation Report.” — Passed→ ERCOT Board consideration of NPRR193
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Oct 20 '09
BOARDEmail Vote / Unlisted MeetingBOARDApproved Approved“To approve NPRR193 as recommended by TAC in the 10/1/09 TAC Recommendation Report.” — Passed