1texas nodal texas nodal commercial systems coms csd presentation by ercot wednesday, 1/10/2007
Post on 03-Jan-2016
220 Views
Preview:
TRANSCRIPT
1 Texas Nodal
Texas Nodal
Commercial SystemsCOMS CSD Presentation
By ERCOT
Wednesday, 1/10/2007
2 Texas Nodal
Agenda
• Commercial System Solution
• Commercial Systems (COMS) Coverage
• High Level CSD Process
• Example Dependency Maps
• Outstanding Needs
• Summary
3 Texas Nodal
Commercial System Solutions
• For all Commercial System Solutions with the exception of Credit Monitoring and Management (CMM), the solution will be built by customizing existing software to meet ERCOT Nodal Protocols.– LODESTAR will be used for
• Settlements and Billing• Data Aggregation• Financial Transfer• Statements and Invoices
– Siebel will be used for• Registration• Disputes
• Additional Visual Basic apps will be built as needed to supplement the LODESTAR and Siebel solutions
• CMM will purchase a COTS product from ROME and customize the implementation to meet ERCOT Nodal protocols
4 Texas Nodal
Commercial Systems Coverage
• 11 Commercial System CSDs cover the associated TPTF approved Requirements– Day Ahead Market CSD
• Day-Ahead Market Energy Settlements Requirements, including Settlements for PTP Obligations Bought in DAM
• Day-Ahead Congestion Rent Requirements • Day-Ahead Make-Whole Settlements Requirements• Day-Ahead Market Ancillary Service Settlements Requirements
– Real-Time Settlement CSD• Ancillary Services Real-Time Settlements Requirements• Real-Time Energy Settlements Requirements• Black Start Services Real-Time Settlements Requirements• Real-Time Emergency Operations Settlements Requirements• Reliability Must Run Services Real-Time Settlements Requirements• Voltage Support Real-Time Settlements Requirements
– RUC Settlement CSD• Reliability Unit Commitment (RUC) Settlements Requirements• Verifiable Cost Settlement Requirements
5 Texas Nodal
Commercial Systems Coverage (cont)
– Congestion Revenue Rights CSD• Day-Ahead Market Congestion Revenue Rights Requirements• Real-Time Congestion Revenue Rights Requirements• Congestion Revenue Rights Balancing Account Requirements• Congestion Revenue Rights Auction Revenue Disbursement Requirements
– Eligibility Process Settlements CSD• Eligibility Process for Settlements Requirements
– Average Incremental Energy Cost CSD• Average Incremental Energy Cost (AIEC) Settlement Requirements
– Statements and Invoices CSD• Statement Requirements• Invoice Requirements
– Financial Transfer CSD • Financial Transfer Requirements
– Data Aggregation CSD• Data Aggregation Requirements
– Registration System CSD• Registration System Requirements (not approved)
6 Texas Nodal
High Level Commercial Systems CSD Process Summary
• All CSD documents follow the same conventional style as listed below:
– Function: is the beginning of the section
– Introduction: is a brief description of the section and related
calculations
– Inputs: Data elements, or processes required for section
– Processing: High level summary of process description
– Outputs: output parameters, data, processes, or resultant set
7 Texas Nodal
Requirements to CSD relationship
• Dependency charts provided in the requirements documents were
used to generate process flow diagrams
• All examples in presentation are listed in CSD documents along
with many additional graphical representations.
• Additional clarifications during detailed design will flesh out the
automated and manual processes and procedures
8 Texas Nodal
Day Ahead Example
Settlement System
MMS
DAESAMT Calc
DAEPAMT Calc
DAOBLPR Calc
DAEREV Calc
PCRUAMT Calc
PCRDAMTCalc
PCRRAMTCalc
PCNSAMTCalc
DARTOBLAMTCalc
RMRDAEREVTOTCalc
DARUAMT Calc
DARDAMTCalc
DARRAMTCalc
DANSAMTCalc
DACONGRENTCalc
LADAMWAMTCalc
DAMWAMTCalc
9 Texas Nodal
Real Time Example
Level 1Level 2
Level 3Level 4
Settlement System
RUFQAMT
PCRUAMT
RTRUAMT
RUCOSTTOT
RUCOST
RDFQAMT
PCRDAMT
RTRDAMT
RDCOSTTOT
RDCOST
RRFQAMT
PCRRAMT
RTRRAMT
RRCOSTTOT
RRCOST
NSFQAMT
PCNSAMT
RTNSAMT
NSCOSTTOT
NSCOST
RTEIAMT
RTDCI
MPAMT
RTDCEXPAMT
BLTRAMT
RTCCAMT
BPDAMT
LABPDAMT
LARTRNAMT
ESCAMT
BSSAMT
LABSSAMT
EMREAMT
LAEMREAMT
VSSVARAMT
VSSEAMT
LAVSSAMT
RMRSBAMT
RMREAMT
RMRAAMT
RMRNPAMT
LARMRAMT
10 Texas Nodal
RUC Example
RUC Settlement Process
Calculate SUPR
Calculate MEPR
Calculate RUCG
Calculate RUCMEREV
Calculate RUCEXRR
Calculate RUCHR
Calculate NCDCHR
Calculate RUCMWAMT
Calculate RUCEXRQC
Calculate RUCDCAMT
Calculate RUCCBAMT
Calculate RUCCBFC
Calculate RUCCBFR
Calculate
RUCCSAMT
Calculate
LARUCAMTCalculate
LARUCCBAMT
Calculate VERISU
Calculate VERIME
Calculate
LARUCDCAMT
11 Texas Nodal
CRR Settlement Examples
Settlement System
MMSDAM
MINRESPR CALC
MAXRESPRCALC
DAOPTPRINFOCALC
DAOBLAMTCALC
DAOPTAMTCALC
CRR SYSTEM
NMMS
DAFGRAMTCALC
DAOBLRAMTCALC
DAOPTRAMTCALC
DAOBLPR CALC
DAOPTPRCALC
OPTDRPRCALC
OBLDRPRCALC
DAOBLHVPRCALC
DAOPTHVPRCALC
RTOBLPRCALC
RTOPTPRCALC
RTOPTPRINFOCALC
RTOPTHVPRCALC
RTOPTRAMTCALC
RTOPTAMTCALC
RTOBLAMTCALC
MMSRTM
DAY AHEAD CRR SETTLEMENTS REAL-TIME CRR SETTLEMENTS
Settlement System
RTCRRSAMTCALC
CRRBACRCALC
DA CRR SETTLEMENTS
DACRRSAMTCALC
RT CRR SETTLEMENTS
DACONGRENT
CRRAMTCALC
LACRRAMTCALC
DATA Aggregation
DA Payment/Charges for PTP Obligations (DAOBLAMT)DA Payment for PTP Options (DAOPTAMT)DA Payment for FGR’S (DAFGRAMT)DA Payment/Charges for PTP Obligations with Refund (DAOBLRSMT)DA Payment for PTP Options with Refund (DAOPTRAMT)
RT Payment for PTP Options (RTOPTAMT)RT Payment for PTP Options with Refund (RTOPTRAMT)
CRR Balancing Account
CRR Day Ahead and Real time
12 Texas Nodal
AIEC Example
13 Texas Nodal
Eligibility Example
DeterrmineSELFCOMMITFLAG
DeterrmineStartup Initiators
DeterrmineQCLAW
(QSE Clawback Intervals)
DeterrmineRUCD (RUC
Decommitments)
DeterrmineStartup Eligibility
DeterrmineStart Type for RUCD
DeterrmineEnergy Eligibility
Eligibility Process
DeterrmineBusiness Defined Errors
14 Texas Nodal
Statements and Invoices Example
Begin
End
Retrieve Operating Day Datafor the market type
Business Analyst
Validates Data
Are Statements
Correct?No
Yes
Statements
Retrieve Statement Recipient Data
Retrieve Charge Type data for the
market type
Generate Statements
Save Data to Lodestar Database
Approve Statementsand Post to MIS
Backout Statements for
Re-Run
Business Analyst Makes Adjustments
Retrieve ERCOT Data
Begin
End
Retrieve Billing Parameters for
Billing Cycle
Business Analyst
Validates Data
Are Invoices Correct?
No
Yes
Invoicing
Retrieve Line Item Statement
Amounts Within Billing Parameters
Retrieve Invoice Recipient Data
Generate Invoice
Save Data to Lodestar Database
Approve Invoicesand post to MIS
Automated Validation For Invoice MIS Posting
Backout Invoices for Re-Run
Business Analyst Makes Adjustments
Retrieve Late Payment Terms,
Payment Dates, Wire Transfer Data
15 Texas Nodal
Financial Transfer Example
Leve
l 1P
aymen
t P
roc
ess Inp
uts
Unpaid Credit Balance
Settlement System
Payment Process for Invoices
Number of Days in Year
Calculate Late Fee Charges
For Short-Paying Invoice Recipients
2% Factor
Leve
l 2L
evel 3
Unpaid Charge Balance
Prime Rate
Wall Street Journal
Calculate Late Fee Credits
For Invoice Recipients who were not paid in full
Calculate Late Fee Credit Ratio
Share
16 Texas Nodal
Outstanding Needs and Next Steps
• Need to clarify database footprint within Detailed Design
• Need to finalize Software solution (Version of LODESTAR and patches)
• Need to solidify timing and data elements of integration points from other
Nodal Systems during Detailed Design
• Need to determine disposition of all Commercial Systems CSD punchlist
items by TPTF. This could produce additional NPRRs and/or changes to
requirements– Examples include for RUC:
• Change references of RUCDECOMMIT to be RUCD• Incorporate RUCSUFLAG changes into RUCG calculations• Remove LARUCAMTQSETOT, LARUCCBAMTQSETOT, LARUCDCAMTQSETOT• Add RUCD as driver for VERISU and VERIME • Incorporate changes from Eligibility Process into RUCDCAMT calculations
– Examples include for Eligibility:• Add SELFCOMMITFLAG determinant and QSE Self-Commitment calculations• Remove stipulation in RUC De-commitment calculations that sets all non de-committed hours to 0 in the
SUFLAG determinant will need to be removed.– This may also necessitate an NPRR
17 Texas Nodal
Summary
• All CSDs are intended to cover their respective Requirements as
approved by TPTF and associated protocols
• All Commercial Systems CSD comments are due back to ERCOT
on January 18th, 2007
top related