Protocol Revision
Subcommittee
Sandy Morris
December 1, 2011
Summary of Revision Requests
10 NPRRs Recommended for Approval
1 SCR Recommended for Approval
3 NPRR Withdrawn
2
Items for a Vote
•
Unanimous Recommendations with No Impacts
– NPRR414, Clarification of Pre-DAM RUC Instruction Sequence
– NPRR415, UFE Calculation Clarifications
– NPRR426, Standing Non-Spin Deployment in the Operating Hour for
Generation Resources Providing On-Line Non-Spin - URGENT
•
Unanimous Recommendations with Impacts
– NPRR413, Oklaunion Exemption Calculation Verification
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Items for a Vote - Continued
•
Non-Unanimous Recommendations with No Impacts
– NPRR351, SCED Look-Ahead Step 1: Pricing: Calculate Non-Binding Prices and
Basepoints for Initial Research into SCED Look-Ahead and allow Consumers to have
a Forward Price Projection (formerly “Calculate and Post Projected Non-Binding
LMPs for the Next 15 Minutes”) – URGENT
– NPRR405, Clarification of DC Tie Load Into Operational Systems and Processes
– NPRR408, Clarification of ERCOT Authority to Deny Energization of Non-Compliant
Generators
– NPRR417, TDSP Submittal of Consumption and Demand Values for AMS ESI IDs
– NPRR427, Energy Offer Curve Requirements for Generation Resources Assigned
Reg-Up and RRS – URGENT
– NPRR428, Energy Offer Curve Requirements for Generation Resources Assigned
Non-Spin Responsibility – URGENT
•
Non-Unanimous Recommendations with Impacts
– NPRR351, SCED Look-Ahead Step 1: Pricing: Calculate Non-Binding Prices and
Basepoints for Initial Research into SCED Look-Ahead and allow Consumers to have
a Forward Price Projection (formerly “Calculate and Post Projected Non-Binding
LMPs for the Next 15 Minutes”) – URGENT
•
Withdrawals (no vote needed)
– NPRR381, Registration Requirements for Interconnecting Entities
– NPRR409, Outage Planning Criteria Clarifications and Enhancements to Narrow Gap
Between Real-Time Operations and Outage Planning
– NPRR420, Correct South Hub Back to Original Definition
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NPRRs Recommended for Approval
5
NPRR351, SCED Look-Ahead Step 1: Pricing: Calculate Non-Binding Prices and
Basepoints for Initial Research into SCED Look-Ahead and allow Consumers to have
a Forward Price Projection
Purpose
(WMS)
Using the inputs specified in this NPRR, ERCOT will calculate prices and base
points over the next hour, using an hour-long optimization instead of a fiveminute optimization. These calculated prices and base points will initially be
non-binding, although it is anticipated that these will become binding as SCED
Look-Ahead progresses in future phases.
PRS Vote
On 11/29/11, PRS voted to recommend approval of NPRR351 as amended by
the 10/11/11 ERCOT comments and to endorse Option 2 via roll call vote.
There were three opposing votes from the Independent Generator and IPM (2)
Market Segments and two abstentions from the IPM and IOU Market
Segments. PRS then voted to recommend a priority of 2012 and rank of 100,
to forward NPRR351 to TAC, and to endorse the Business Case as set forth in
the 9/20/11 Trefny-Crockett comments. There were two opposing votes from
the Consumer and IPM Market Segments and five abstentions from the
Independent Generator (2), IPM and IOU (2) Market Segments.
Effective Date/Priority
Upon System Implementation – Priority 2012; Rank 100
ERCOT Impact
$650k - $750k (system implementation), $30k - $40k per year (ongoing
infrastructure); impacts to MMS, EMS, MIS, CDR, and ISM; impacts to ERCOT
business functions;
Business Case
Highlights
Indications at 9/1/11 PUCT Open meeting that it is very important to improve
the ability of loads to respond to market prices as part of the overall plan for
Resource and reserve adequacy and shortage pricing market design and that
this NPRR or something similar must be in place and urged ERCOT and
ERCOT stakeholders to move forward; ability of loads to respond to prices is
significantly enhanced by providing notice of a non-binding projection of prices;
enhances market data transparency by providing the non-binding price
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projections to all Market Participants
on the MIS Public Area.
NPRR405, Clarification of DC Tie Load Into Operational
Systems and Processes
Purpose
(EDF Trading)
This NPRR clarifies that Direct Current Tie (DC Tie) exports are to
be treated as Load.
PRS Vote
On 10/20/11, PRS voted to recommend approval of NPRR405 as
submitted. There was one opposing vote from the Consumer
Market Segment and two abstentions from the Independent
Generator and Municipal Market Segments. On 11/17/11, PRS
voted to endorse and forward the 10/20/11 PRS Report and Impact
Analysis for NPRR405 to TAC. There was one opposing vote from
the Consumer Market Segment and one abstention from the
Independent Generator Market Segment.
Effective Date/Priority
February 1, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Qualitative benefits include clarification of Protocols; provision of
service to DC Tie exports that they pay for.
7
NPRR408, Clarification of ERCOT Authority to Deny
Energization of Non-Compliant Generators
Purpose
(ERCOT)
This NPRR clarifies ERCOT’s authority to deny energization of a
new or materially changed All-Inclusive Generation Resource if
ERCOT determines the Resource Entity cannot demonstrate that
the Resource would be able to comply with technical standards in
the Protocols, the Planning Guide, the Nodal Operating Guides, and
Other Binding Documents.
PRS Vote
On 10/20/11, PRS voted to recommend approval of NPRR408 as
amended by the 10/19/11 Topaz comments. There was one
abstention from the Independent Generator Market Segment. On
11/17/11, PRS unanimously voted to endorse and forward the
10/20/11 PRS Report as revised by PRS and Impact Analysis for
NPRR408 to TAC.
Effective Date/Priority
February 1, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Improve reliability by clarifying ERCOT’s authority to deny
energization of any All-Inclusive Generation Resource when the
Resource owner cannot demonstrate that the Resource will comply
with technical standards listed above; encourage the construction of
Facilities that comply with those standards; eliminates any
uncertainty over ERCOT’s authority to preclude energization of noncompliant All-Inclusive Generation Resources.
8
NPRR413, Oklaunion Exemption Calculation Verification
Purpose
(ERCOT)
This NPRR adds details to describe the ERCOT adjustment process
when Oklaunion-exempt Load exceeds the actual net output of the
Oklaunion Resource and adds the requirement to designate a nonexempt Qualified Scheduling Entity (QSE).
PRS Vote
On 10/20/11, PRS unanimously voted to recommend approval of
NPRR413 as submitted. On 11/17/11, PRS unanimously voted to
endorse and forward the 10/20/11 PRS Report and Impact Analysis
for NPRR413 to TAC.
Effective Date/Priority
February 1, 2012
ERCOT Impact
Less than $5k for minor changes to internal software program
(covered by O&M budget)
Business Case
Highlights
Transparency and clarity in Protocols.
9
NPRR414, Clarification of Pre-DAM RUC Instruction Sequence
Purpose
(ERCOT)
This NPRR clarifies the treatment of Reliability Unit Commitment
(RUC) instructions for instances in which ERCOT issues instructions
prior to the closing of the Day-Ahead Market (DAM) submission
window and to clarify how a QSE may self-commit in such a
scenario.
PRS Vote
On 10/20/11, PRS unanimously voted to recommend approval of
NPRR414 as revised by PRS. On 11/17/11, PRS unanimously voted
to endorse and forward the 10/20/11 PRS Report as revised by PRS
and Impact Analysis for NPRR414 to TAC.
Effective Date/Priority
February 1, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Provide clarity in Protocols.
10
NPRR415, UFE Calculation Clarifications
Purpose
(ERCOT)
This NPRR clarifies language in the Unaccounted for Energy (UFE)
calculation.
PRS Vote
On 10/20/11, PRS unanimously voted to recommend approval of
NPRR415 as submitted. On 11/17/11, PRS unanimously voted to
endorse and forward the 10/20/11 PRS Report and Impact Analysis
for NPRR415 to TAC.
Effective Date/Priority
February 1, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Clarifies the use of the terms for scheduled and actual energy;
consistent and clarified Protocol language.
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NPRR417, TDSP Submittal of Consumption and Demand
Values for AMS ESI IDs
Purpose
(ERCOT)
This NPRR documents an existing market process where the
Transmission and/or Distribution Service Providers (TDSPs) are
providing consumption and demand data for Advanced Metering
System (AMS) Electric Service Identifiers (ESI IDs) so the data can
be utilized in the implementation of NPRR251, Synchronization of
PRR845, Definition for IDR Meters and Optional Removal of IDR
Meters at a Premise Where an Advanced Meter Can be Provisioned.
PRS Vote
On 10/20/11, PRS voted to recommend approval of NPRR417 as
submitted. There were three abstentions from the IPM and
Independent Generator (2) Market Segments. On 11/17/11, PRS
unanimously voted to endorse and forward the 10/20/11 PRS Report
for NPRR417 as revised by PRS and Impact Analysis for NPRR417
to TAC.
Effective Date/Priority
February 1, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Allows for the use of existing non-IDR 867_03, Monthly Usage,
information being submitted by the TDSP for AMS ESI IDs in support
of implementing NPRR251 and for ERCOT to make changes to
existing code when developing a solution for NPRR251, which
results in a lower cost solution to deliver the functionality.
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NPRR426, Standing Non-Spin Deployment in the Operating Hour for
Generation Resources Providing On-Line Non-Spin - URGENT
Purpose
(ERCOT)
This NPRR requires QSE action that routinely releases certain OnLine Non-Spinning Reserve (Non-Spin) energy to SecurityConstrained Economic Dispatch (SCED) without the need for
ERCOT to issue a Non-Spin deployment Instruction. The changes
do not invalidate any other existing requirements contained in this
section. Those Generation Resources not subject to the provisions
contained in paragraph (5) of Section 6.5.7.6.2.3 must respond to
any Non-Spin deployment or recall Instruction issued by ERCOT
Operators in accordance with the TAC-approved procedure to
deploy Resources providing Non-Spin Service.
PRS Vote
On 11/17/11, PRS unanimously voted to grant NPRR426 Urgent
status. PRS then unanimously voted to recommend approval of
NPRR426 as revised by PRS; an effective date of January 5, 2012;
and to forward NPRR426 to TAC.
Effective Date/Priority
January 5, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Addresses the Commission’s discussion raised at its October 27,
2011 Open Meeting regarding Docket No. 37897.
13
NPRR427, Energy Offer Curve Requirements for Generation
Resources Assigned Reg-Up and RRS - URGENT
Purpose
(ERCOT)
This NPRR adds a requirement for the Energy Offer Curve to be set
at the System-Wide Offer Cap (SWCAP) for the capacity reserved
for Responsive Reserve (RRS) Service Ancillary Service Resource
Responsibility and Regulation Up (Reg-Up) Ancillary Service
Resource Responsibility. Exemptions are provided for Resources
that experience Forced Outages, Forced Derates, or Startup
Loading Failures.
PRS Vote
On 11/17/11, PRS unanimously voted to grant NPRR427 Urgent
status. PRS then voted to recommend approval of NPRR427 as
revised by PRS; an effective date of January 5, 2012; and to forward
NPRR427 to TAC. There was one opposing vote from the
Consumer Market Segment.
Effective Date/Priority
January 5, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Addresses concerns expressed at the October 27, 2011 Open
Meeting regarding Project No. 37897 and mitigates price
suppression during deployment of reserve services to more
accurately reflect the value of the service.
14
NPRR428, Energy Offer Curve Requirements for Generation
Resources Assigned Non-Spin Responsibility - URGENT
Purpose
(ERCOT)
This NPRR adds a requirement for the Energy Offer Curve to be at
or above $120 for On-Line Non-Spin capacity and at or above $180
for Off-Line Non-Spin capacity. Exemptions are provided for
Resources that experience Forced Outages, Forced Derates, or
Startup Loading Failures.
PRS Vote
On 11/17/11, PRS unanimously voted to grant NPRR428 Urgent
status. PRS then voted to recommend approval of NPRR428 as
revised by PRS; an effective date of January 5, 2012; and to forward
NPRR428 to TAC. There was one opposing vote from the
Consumer Market Segment.
Effective Date/Priority
January 5, 2012
ERCOT Impact
No Impacts
Business Case
Highlights
Addresses the Commission’s discussion raised at its October 27,
2011 Open Meeting regarding Project No. 37897 and mitigates price
suppression during deployment of reserve services to more
accurately reflect the value of the service.
15
SCR764, Public Access to Select MIS Dashboards
Purpose
(ERCOT)
System Change Request (SCR) 764 was approved by the ERCOT
Board on May 17, 2011. However, during the development of the
phased in dashboard approach, it was determined that the
Locational Marginal Price (LMP) ticker functionality is not needed as
the information is provided in the existing price reports and the LMP
Contour Map. It is recommended that the LMP Ticker functionality
be removed from the Market Information System (MIS) due to the
nature of the data already being provided and the low usage of this
dashboard.
Vote
SCR764 was approved by the ERCOT Board on 5/17/11. On
11/8/11, MIS User Group (MISUG) comments were posted in
support of the recommendation to remove the LMP Ticker
dashboard functionality from the scope of SCR764. On 11/10/11,
ERCOT comments were posted in support of the recommendation to
remove the LMP Ticker dashboard functionality from the scope of
SCR764. On 11/21/11, PRS comments were posted in support of
the recommendation to remove the LMP Ticker dashboard
functionality from the scope of SCR764.
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PRS Procedures
• PRS voted to amend its procedures to reflect the structural
changes approved by TAC.
• PRS requests that TAC approve the amended PRS procedures.
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