http://nodal.ercot.com 1 ERCOT Public

1
Texas Nodal Market Implementation Program
Implementation Scenarios September 6, 2006
2
Scenario 1 single release (baseline) (Nodal
Market live Zonal Market Shutdown July 2009)
Q2 2008
Q3 2009
Q4 2008
Q3 2008
Q2 2007
Q1 2007
Q4 2006
Q4 2007
Q3 2007
Q1 2008
Q3 2006
Q1 2009
Q2 2009
FAT
SAT
NMMS Build
Common model update process
NMMS Conceptual Design
NMMS
UI in production
Naming Convention DB
Naming Convention information collection
Model Data Certification
Model Data Remediation Reconciliation
EMS SAT
EMS
EMS FAT
EMS Requirements, Conceptual Design
EMS
SCED SAT
SCED Build
SCED FAT
SCED Requirements, Conceptual Design
MMS
MMS FAT
MMS SAT
MMS Design, Build, Pre-FAT
MMS Requirements, Conceptual Design
OS SAT
OS Build
OS FAT
OS Requirements, Conceptual Design
Outage Scheduler
CRR Design, Build, Pre-FAT
CRR FAT
CRR SAT
CRR Requirements, Conceptual Design
CRR
Credit Monitoring
Registration ready
StatementsLayout
Script test
Non-binding settlements
Financial Transfer
Commercial Systems Design, Build, Pre-FAT
CS FAT
CS SAT
CS FAT
CS SAT
CS Requirements, Conceptual Design
CS FAT
CS SAT
Commercial Systems
MIS SAT
MIS (SCED) Design, Build, Pre-FAT
MIS FAT
MIS FAT
MIS SAT
MIS (EMS/MMS/CRR) Design, Build, Pre-FAT
MIS FAT
MIS SAT
MIS FAT
MIS SAT
MIS
EDW FAT
EDW SAT
EDW Requirements, Conceptual Design
EDW FAT
EDW SAT
EDW FAT
EDW SAT
EDW Design, Build, Pre-FAT
EDW
168 hour market trial
End of Trials
CRR Auction for Go Live
Final MP Interface Specs 3/31
MP Registration complete
Business Requirements complete 10/30
Preliminary MP Interface Specs 12/31
MPSCED Offers
Begin MP trial participation
ERCOT MP Readiness
Qualification Freeze
MP Nodal Registration
MP Financial Operational Qualification
NODAL GO LIVE
EDS 3 (TXMACS 0.3) SCED MP SCED Offers
EDS 4 TXMACS 0.4) with selected MPs
EDS 5 (TXMACS 0.5)
EDS 4 MP SAT
TXMACS 1.0 Live operations
EDS 3 Data Validation
Early Delivery Systems
3
Scenario 2 3 incremental releases slack
removed (Release 2 Zonal Shutdown July 08,
Release 3 January 09)
Q2 2008
Q3 2009
Q4 2008
Q3 2008
Q2 2007
Q1 2007
Q4 2006
Q4 2007
Q1 2008
Q3 2006
Q1 2009
Q2 2009
Q3 2007
FAT
ITEST
Common model update process
NMMS Conceptual Design
NMMS Build
Naming Convention DB
Naming Convention information collection
NMMS
Planning UI
Operations UI
Model Data Certification
Model Data Remediation Reconciliation
EMS
ITEST
EMS
EMS FAT
EMS Requirements, Conceptual Design
OS Build
OS Requirements, Conceptual Design
Outage Scheduler
ITEST
OS FAT
ITEST
SCED Build
SCED FAT
SCED Requirements, Conceptual Design
MMS
MMS FAT
ITEST
MMS Design, Build, Pre-FAT
MMS Requirements, Conceptual Design
CRR Design, Build, Pre-FAT
CRR FAT
ITEST
CRR Requirements, Conceptual Design
CRR
Integration
ITEST
FAT
Build
FAT
ITEST
Requirements, Conceptual Design
Registration ready
StatementsLayout
Script test
Commercial Systems Design, Build, Pre-FAT
CS FAT
ITEST
CS Requirements, Conceptual Design
Commercial Systems
ITEST
MIS (SCED) Design, Build, Pre-FAT
MIS FAT
MIS (EMS/MMS/CRR) Design, Build, Pre-FAT
MIS FAT
ITEST
MIS
EDW FAT
ITEST
EDW Requirements, Conceptual Design
EDW Design, Build, Pre-FAT
EDW
168 hour market trial
MP Registration complete
End of Trials
Business Requirements complete 10/30
Preliminary MP Interface Specs 12/31
Final MP Interface Specs 3/31
MPSCED Offers
Begin MP trial participation
ERCOT MP Readiness
Qualification Freeze
MP Nodal Registration
MP Financial Operational Qualification
Real Time Operations GO/NO GO Zonal Shutdown
GO/NO GO
Single Entry Model GO LIVE
EDS 1/2
Forward Markets GO/NO GO
EDS 3
EDS 3 Data Validation
Trials Implementation
EDS 4
EDS 4 MP SAT
4
Scenario 3 Release 2 3 combined slack
removed(Nodal Market live Zonal Market
Shutdown January 2009)
Q2 2008
Q3 2009
Q4 2008
Q3 2008
Q2 2007
Q1 2007
Q4 2006
Q4 2007
Q3 2007
Q1 2008
Q3 2006
Q1 2009
Q2 2009
FAT
ITEST
Common model update process
NMMS Conceptual Design
NMMS Build
Naming Convention DB
Naming Convention information collection
NMMS
Planning UI
Operations UI
Model Data Certification
Model Data Remediation Reconciliation
EMS SAT
EMS
EMS FAT
EMS Requirements, Conceptual Design
EMS
SCED SAT
SCED Build
SCED FAT
SCED Requirements, Conceptual Design
MMS
MMS FAT
MMS SAT
MMS Design, Build, Pre-FAT
MMS Requirements, Conceptual Design
OS SAT
OS Build
OS FAT
OS Requirements, Conceptual Design
Outage Scheduler
CRR Design, Build, Pre-FAT
CRR FAT
CRR SAT
CRR Requirements, Conceptual Design
CRR
Registration ready
StatementsLayout
Script test
Commercial Systems Design, Build, Pre-FAT
CS FAT
CS SAT
CS Requirements, Conceptual Design
Commercial Systems
MIS SAT
MIS (SCED) Design, Build, Pre-FAT
MIS FAT
MIS (EMS/MMS/CRR) Design, Build, Pre-FAT
MIS FAT
MIS SAT
MIS
EDW FAT
EDW SAT
EDW Requirements, Conceptual Design
EDW Design, Build, Pre-FAT
EDW
Final MP Interface Specs 3/31
Business Requirements complete 10/30
Preliminary MP Interface Specs 12/31
ERCOT MP Readiness
Single Entry Model GO LIVE
NODAL GO LIVE
EDS 3 (TXMACS 0.3) SCED MP SCED Offers
EDS 4 TXMACS 0.4) with selected MPs
EDS 4 MP SAT
TXMACS 1.0 Live operations
EDS 3 Data Validation
EDS 1/2
Early Delivery Systems
5
Scenario 4 3 incremental releases, timed for
seasonality(Release 2 Zonal Shutdown October
08, Release 3 February 09)
Q2 2008
Q3 2009
Q4 2008
Q3 2008
Q2 2007
Q1 2007
Q4 2006
Q4 2007
Q1 2008
Q3 2006
Q1 2009
Q2 2009
Q3 2007
FAT
ITEST
Common model update process
NMMS Conceptual Design
NMMS Build
Naming Convention DB
Naming Convention information collection
NMMS
Planning UI
Operations UI
Model Data Certification
Model Data Remediation Reconciliation
EMS
ITEST
EMS
EMS FAT
EMS Requirements, Conceptual Design
OS Build
OS Requirements, Conceptual Design
Outage Scheduler
ITEST
OS FAT
ITEST
SCED Build
SCED FAT
SCED Requirements, Conceptual Design
MMS
MMS FAT
ITEST
MMS Design, Build, Pre-FAT
MMS Requirements, Conceptual Design
CRR Design, Build, Pre-FAT
CRR FAT
ITEST
CRR Requirements, Conceptual Design
CRR
Integration
ITEST
FAT
Build
FAT
ITEST
Requirements, Conceptual Design
Registration ready
StatementsLayout
Script test
Commercial Systems Design, Build, Pre-FAT
CS FAT
ITEST
CS Requirements, Conceptual Design
Commercial Systems
ITEST
MIS (SCED) Design, Build, Pre-FAT
MIS FAT
MIS (EMS/MMS/CRR) Design, Build, Pre-FAT
MIS FAT
ITEST
MIS
EDW FAT
ITEST
EDW Requirements, Conceptual Design
EDW Design, Build, Pre-FAT
EDW
168 hour market trial
MP Registration complete
End of Trials
Business Requirements complete 10/30
Preliminary MP Interface Specs 12/31
Final MP Interface Specs 3/31
MPSCED Offers
Begin MP trial participation
ERCOT MP Readiness
MP Nodal Registration Qualification sequence
Real Time Operations GO/NO GO Zonal Shutdown
GO/NO GO
Single Entry Model GO LIVE
EDS 1/2
EDS 3
EDS 3 Data Validation
Forward Markets GO/NO GO
Trials Implementation