EDS 1 and 2 Update Early Delivery Systems

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EDS 1 and 2 UpdateEarly Delivery Systems

• Standards Workshop
• September 17, 2007

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EDS 1 and 2 Early Delivery Systems

• Agenda
• Setting the Context
• EDS Release Overview
• EDS 1
• Point-to-Point Status
• EDS 2
• Schedule and Activities
• Telemetry and SE Standards Update
• SCADA and NOM Issues Management

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EDS Release Overview

• EDS 1 Release 1 Alarm Processing
• EDS 1 Release 2 Point-to-Point Checkout
• EDS 2 Release 3 State Estimator Network
  Security Analysis
• EDS 2 Release 4 Network Model Validation
• EDS 3 Release 5 SCED execution and posting
  LMPs
• EDS 3 Release 6 Load Frequency Control
• EDS 3 Release 7 Settlement Statements, CRR
  Allocation Auction
• EDS 4 Release 8 RT Settlements (no Shadow
  Settlements)
• EDS 4 Release 9 DAM, RUC, SASM, Full
  Settlements, EDW Extracts

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EDS 1 Early Delivery Systems

• EDS 1 Release 2
• Point to Point Testing

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EDS 1 Early Delivery Systems

• Beta Testing Results
• Testing Completed (Friday April 20th, 2007)
• 33 or 38 MPs participated
• A sample of 2200 Zonal points checked
• 10 errors found (non-quality code related)
• Market and TPTF Agreed to Perform Full P2P

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EDS 1 Early Delivery Systems

• Point-to-Point Status
• Testing Began Monday June 4, 2007
• June - CenterPoint Energy and Oncor (TSP)
  verifications
• July first stage of TSP and QSE verifications
• August - second stage of QSE and TSP
  verifications
• September - Remaining verifications
• Current Status
• 92 Complete
• 60,000 of 67,000 Nodal points verified
• Error rate of approximately 4
• Scheduled to Complete September 30, 2007
• Failover Testing will be performed
• Quality Codes will be re-verified pending EMS fix
• Failed points will be re-verified

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EDS 2 Early Delivery Systems

• EDS 2 Release 3
• State Estimator and Network Security Analysis

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EDS 2 - Release 3 Timeline
Nodal Critical Path
Activities Timeline
Deliverables
Inputs
Performance Reports Based on Telemetry and SE
Standards
Nodal
?
TPTF
Protocols
Verified Protocols
Trans Plan
?
Tele
SE
MP Extracts
Standards
EDS 2 Starts
?
Nodal Procedures
Use Cases
?
Completed Metrics
Zonal Procedures
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EDS 2 Release Overview

• EDS 2 Activities
• Release 3
• Tune State Estimator
• Minimize calculated points
• Minimize ERCOT manual replacements
• Eliminate calculated and replaced net generation
• Measure Telemetry and State Estimator Performance
• Provide reporting to MPs based on Telemetry and
  SE Standards
• Resolve data issues between ERCOT and MPs
• Verify Network Security Analysis Functions
• Verify transmission constraint management
• Verify dynamic ratings
• Verify special protection schemes (SPS) /
  remedial action plans (RAP)

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EDS 2 Telemetry and SE Standards Update

• Nodal Telemetry and SE Standards Update
• Existing Standards were developed in 2006
• Standards can be revised each October
• Nodal EMS functionality will measure / report on
  SCADA and SE performance based on Telemetry and
  State Estimator Standards
• ERCOT revisions
• Align standards to conform with NERC standards
  format
• Reference Nodal Protocols and Operating Guides
• Evaluate standards measurements, metrics and
  compliance
• Revisions sent to Market Participants September
  10, 2007
• Standards Workshop September 17, 2007
• Standards approval targeted for October 5, 2007

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EDS 2 Data Issue Management

• SCADA / NOM Data Issues Management
• Definition
• Nodal EMS will provide tools to measure SCADA and
  SE performance
• Performance measurements are based on Telemetry
  and SE Standards
• SCADA not performing to standards will be
• reported using ERCOT Enterprise Data Warehouse
  functionality
• available to ERCOT and to the responsible MP via
  the MIS portal
• resolved jointly between ERCOT Operations Support
  and the MPs
• Conclusion
• ERCOT Ops Support will utilize a Data Issues
  Management Tool
• To resolve on-going performance issues

ERCOT
I C C P
p2p
Issue Mgmt
MPs
EMS
EDW
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EDS 2 Early Delivery Systems

• Questions?