CRR Issues

1
CRR Issues

• Restructured/Reformatted Requirements - VOTE
• McFRIs Allocated to Wind Generators
• Effective Date for Settlement Points
• TPTF
• September 10, 2007

2
Timeline of CRR Document Reviews Approvals
Done

• NPRR047 and NPRR059 require TPTF approval and
  updates to the following
• Requirements
• Conceptual System Design (CSD)

EDS Handbook requires TPTF review and approval
Renumber Requirements for traceability purposes
and obtain TPTF approval.
Business Process Clarification NPRR
3
Why did we Restructure Requirements?
The initial efforts are focused on Protocol
coverage by functional requirements
In Quality Center
In Requisite Pro
Approved Test Cases
Approved Requirement Documents
Approved Use Cases
Approved Test Scripts
Test Results
Protocols

• CRR Requirements as approved do not provide the
  level of granularity to ensure traceability
  through test cases and scripts.
• A finer level of granularity (lower number of
  tests scripts per requirement) will provide
  greater visibility to stakeholders, including
  TPTF and program leadership, into CRR System
  quality and test execution.
• CRR Project Team chose to keep as much of
  original approved language as possible.

4
Disposition of Comments
Comments received during consideration of
Baseline 12 revision to CRR Requirements
No additional comments were received to the
Reformatted Requirements
5
Proposed Motion

• TPTF approves v2.5 of the CRR Requirements, as
  distributed to TPTF on August 29.

6
MCFRIs allocated to WGRs, or QSEs representing
WGRs?

• The procedures for determining McCamey Flowgate
  Rights (MCFRIs) and allocating them to QSEs
  representing wind-powered Generation Resources
  (WGRs)
• MCFRIs are a type of FGR that must be allocated
  only to WGRs in the McCamey Area,
• ERCOT shall identify WGRs eligible for MCFRI
  allocation in the McCamey Area
• ERCOT may allocate MCFRIs only to WGRs in the
  McCamey Area.
• All CRRs, including MCFRIs, will be awarded to
  CRR Account Holders
• QSEs and WGRs may each have an associated CRR
  Account Holder

7
MCFRIs allocated to WGRs, or QSEs representing
WGRs?

• Deadline to submit Allocation Eligibility Form
  (to participate in EDS PCRR and MCFRI
  allocations) is Dec 1st 2007
• Plan is to make Allocation Eligibility Forms
  available by end Sept, along with a market notice
• However, Business Process Clarification NPRR
  (which determines whether MCFRIs are allocated to
  WGRs or QSEs) will only be approved on Oct 24th,
  at earliest
• Options either
• Wait for NPRR approval gt Allocation Eligibility
  Form submission window 1mth, OR
• Assume WGRs gt Allocation Eligibility Form
  submission window 2mths

8
Effective Date for Resource Node Settlement Points

• ERCOT proposes that Settlement Points associated
  with Resource Nodes not be established until
  generation is actually produced
• This means that CRRs will not be available from
  or to that Settlement Point for at least a full
  month after the generator first produces
  electricity to the grid.
• Timeline shown is for
• November CRRs
• Generator would have
• to be online early September

9
Rationale for ERCOTs position

• Supporting two sets of Settlement Points one
  for CRR, another for daily market operations
  introduces a level of complexity requiring
  multiple sets of start and stop times associated
  with each Resource Node Settlement Point.
• Theres a risk of adding a CRR Source/Sink based
  on projected information, selling CRRs which
  include that Source/Sink, and then not having the
  Settlement Point in-service.

10
Section 7.5.1 (2) / with proposed modifications

• For a monthly CRR market, transmission system
  upgrades and changes shall be included in the CRR
  Network Model only if the upgrade or change is
  in-service when the CRR Network Model is being
  developed.
• For an annual market, transmission system
  upgrades and changes shall be included in the CRR
  Network Model used for the first month after the
  upgrade or change is scheduled to be in-service
  for a full month.