ERCOT NMMS NODAL CIM - emmos.org Nodal_final.pdf · 2 Lead from the front Texas Nodal • ERCOT...

http://nodal.ercot.com 1Lead from the front

Texas Nodal

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Curtis Crews, P.E., ’95

Engineering Supervisor

ERCOT Network Model Group

[email protected]

512-248-3139


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• ERCOT• NMMS• NODAL• CIM


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Definitions of ERCOT

• Regional Reliability Council within NERC• Independent System Operator (grid operator) with multiple roles:

–Responsible for grid operations and reliability–Administrator of the wholesale power market (deregulated 1996)–Administrator of the retail electric market (restructured 2002)–Supervising entity for transmission planning–Administrator of the Renewable Energy Credit program for the State of Texas (2002)

• A term frequently used to describe the collaborative stakeholderprocess for developing protocols & guides


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“ERCOT’s Mission is to direct and ensure reliable and cost-effective operation of the electric grid and to enable fair and efficient market-driven solutions to meet customers’ electric service needs.”


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At ERCOT electric reliability is the primary focus. ERCOT staff understands the importance of safe, reliable, and affordable electric service in the daily lives of Texans.

For the benefit of Texas, ERCOT will» Operate the high-voltage electric grid

reliably, efficiently, and securely» Provide open and non-discriminatory

access to electric transmission services and the competitive electricity market

» Enable robust and efficient wholesale and retail electricity markets


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• ERCOT grid covers 75% of Texas and serves 85% of Texas load

• 38,000 miles of Transmission Lines–Nearly 700 miles of 345 kV lines added since 1999

• 70,000 MW of total resources* • 26,000 MW of new generation capacity added since 1998• 63,056 MW Peak Load (August 17, 2006 unofficial)• ERCOT is a non-profit corporation regulated by the Public Utility

Commission of Texas and subject to oversight by the Texas Legislature.


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Project began in 2003 with plans to:1. Reduce personnel hours.2. Improve accuracy checks of data.3. Improve consistency between the Planning model and the

Operations model.4. Improve data exchange interface between ERCOT and

Transmission Operators.5. Improve audit trail metrics.6. Automate one-line generation from the model database.


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Re-directed project in late 2005 to ensure compliance with Nodal Protocol requirements.

Modeling Challenges in Nodal Protocol:1. Model timeline (more forward looking)2. Information posting 3. Name consistency between models (different platforms)4. CRR Model and auction data requirements


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• NMMS general concept was to have an easily audited single location for Operations and Planning Models data to reside and drive future models. Easy, right?

• Political challenge ensued and will be ignored for the remainder of this presentation.

• Technical challenge(s) presented and are being addressed.


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“ERCOT’s rigorous selection criteria, consistent with the Nodal Charter, require vendor offerings to align with ERCOT’s focused technology footprint, and select only proven software solutions that are capable of minimizing bugs and integration risk,” said Nodal Program Director Kathy Hager. “The preferred vendor teams consist of exemplary individuals who bring to ERCOT a commitment to excellence in project management and a proven track record of delivery and results.”


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Zonal Market• Insufficient price transparency • Resources grouped by portfolio • Indirect assignment of local congestion

Nodal Market• Improved price signals • Improved dispatch efficiencies • Direct assignment of local congestion


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• The transition to the nodal market will require significant changes to processes and systems. (5 Congestion Management Zones (CMZs) defined by Commercially Significant Constraints (CSCs) changing to a nodal design satisfying the PUCT order to directlyassign local congestion.) The nodal market grid will consist of more than 4,000 nodes, replacing today’s CMZs. The major components that will impact ERCOT’s current business model include the following:– Day-ahead market (DAM) – Reliability unit commitment (RUC) – Real-time or security constrained economic dispatch (SCED) – Congestion revenue rights (CRRs)

ALL have heavy dependence on an accurate model!


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EMS

Early Delivery Systems

MMS

CRR

MIS

NMMS

Commercial Systems

ERCOT & MP Readiness

Q2 2008 Q3 2009Q4 2008Q3 2008Q2 2007Q1 2007Q4 2006 Q4 2007Q3 2007 Q1 2008Q3 2006 Q1 2009

Outage Scheduler

EDW

“UI in production”

Q2 2009

Qualification Freeze

EDS 3 (TXMACS 0.3)SCED; MP SCED Offers

EDS 4 TXMACS 0.4)

with selected MPsEDS 5 (TXMACS 0.5)

MMS FAT MMS SAT

CRR Design, Build, Pre-FAT CRR FAT CRR SAT

Final MP Interface

Specs 3/31

MP Registration complete

MIS FAT MIS SAT

168 hour market trial

FAT SATNaming Convention; Requirements, Concept Design CIM-compliant Model (flat file)

FAT SATNMMS User Interface & business processes

Zonal Genesys Operational

Common model update process

NODAL GO LIVE

MIS (EMS/MMS/CRR) Design, Build, Pre-FAT

EDW FAT EDW SAT

StatementsLayout

Script test Credit Monitoring

End of Trials

MP Nodal Registration MP Financial & Operational Qualification

EMS SATEMS EMS FATEMS Requirements, Conceptual Design

MIS SATMIS (SCED) Design, Build, Pre-FAT MIS FAT

MMS Design, Build, Pre-FATMMS Requirements, Conceptual Design

OS SATOS Build OS FATOS Requirements, Conceptual Design

CRR Requirements, Conceptual Design

Commercial Systems Design, Build, Pre-FAT CS FAT CS SAT

EDW Requirements, Conceptual Design

SCED SATSCED Build SCED FATSCED Requirements, Conceptual Design

Registration ready

MPSCED Offers

Business Requirements

complete 10/30

Preliminary MP Interface Specs 12/31

CS FAT CS SAT

EDW FAT EDW SAT EDW FAT EDW SAT

CS Requirements, Conceptual Design

EDW Design, Build, Pre-FAT

MIS FAT MIS SAT

Begin MP trial participation

“Non-binding settlements”

Financial Transfer

CS FAT CS SAT

EDS 4 MP SAT

TXMACS 1.0Live

operations

MIS FAT MIS SAT

“CRR Auction for Go Live”

Vendors will share detailed design documents with other vendors for interface definitions

Vendors selection will be done by Mid-June

TPTF will hold review meetings as required for approval of requirements and conceptual design documents

All systems have to conform with the integrated Data Dictionary

Areva’s EMS will handle CIM models

ERCOT would need 6 months of integration testing on applications such as MMS, CRR and NMMS

To satisfy section 17.3 of the Nodal protocols, ERCOT will deploy COGNOS and SAS to provide PUCT with the ability to generate reports

To allow for interface definitions, detailed design documents of individual projects can be completed 80 hours after one another. The order of completion will be NMMS – MMS/EMS/SE – CRR/Outage Schedule –Commercial Systems – MIS/EDW

The current State Estimator will meet the necessary criteria

TDSPs will be trained on new NMMS and there will dual entry of models – into the new NMMS and into GENESYS. ERCOT will have enough staff to handle this work

Assumptions affecting the critical path

Vendors will share detailed design documents with other vendors for interface definitions

Vendors selection will be done by Mid-June

TPTF will hold review meetings as required for approval of requirements and conceptual design documents

All systems have to conform with the integrated Data Dictionary

Areva’s EMS will handle CIM models

ERCOT would need 6 months of integration testing on applications such as MMS, CRR and NMMS

To satisfy section 17.3 of the Nodal protocols, ERCOT will deploy COGNOS and SAS to provide PUCT with the ability to generate reports

To allow for interface definitions, detailed design documents of individual projects can be completed 80 hours after one another. The order of completion will be NMMS – MMS/EMS/SE – CRR/Outage Schedule –Commercial Systems – MIS/EDW

The current State Estimator will meet the necessary criteria

TDSPs will be trained on new NMMS and there will dual entry of models – into the new NMMS and into GENESYS. ERCOT will have enough staff to handle this work

Assumptions affecting the critical pathOTS SAT

OTS FAT

OTS SAT

OTS FAT

EDS 3 Data Validation

CIM


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Why CIM?????• AREVA T&D, Inc. will remain the provider of the Energy Management

System and Load Forecast. (EMP2.2 to 2.4 and Habitat 5.4 to 5.6)• Siemens Power Transmission & Distribution Inc. Energy Management &

Automation Division (NMMS)• ABB, Inc. PSN/Power Systems Division (Market Operations and Outage

Scheduler)• Nexant, Inc. Energy Solutions Division (CRR, Network Modeling and

Telemetry)• ROME Corporation (Credit Monitoring)• AWS Truwind, LLC, (RPP forecast)

This is the initial list of preferred vendors. Finalized selection is pending.

• CIM Version 10 Revision 7 Release Candidate selected as baseline


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NMMS

Initial Load From EMS

NOMCR –CIM/XML

PMCR –Idevs

NOMCR – CSV Outages

MMS –CPSM + specified CIM extensions

EMS –CIM/XML or CSV-Network, SCADA, & Gen

MIS –CIM/XMLCPSM + Increments

OS -CIM/XMLList of Equip + connectivity

CRR –RAWD-Network + Settle-ment Points

Planning –RAWD-Network

LodeStar –settlement data


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After today’spresentation,you are here

This is therest of theERCOTMarket


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ERCOT NMMS NODAL CIM - emmos.org Nodal_final.pdf · 2 Lead from the front Texas Nodal • ERCOT...

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