WESTERN ELECTRICITY COORDINATING WESTERN ELECTRICITY COORDINATING COUNCILCOUNCIL

OPERATIONS COMMITTEEOPERATIONS COMMITTEEJune 18, 2009June 18, 2009

Salt Lake City, UTSalt Lake City, UT

Base Case Coordination System (BCCS)

Request For Information (RFI)Presented by:

Randy Rhodes

David Franklin

BCCS RFIBCCS RFI

The purpose of this RFI is to seek information from Responders qualified to provide WECC with a software solution for improved management of transmission planning data at a central location and improved coordination of transmission planning base cases. SRWG/TSS is seeking to improve the existing process by automating planning case development and review that are now done manually. These improvements are expected to both improve planning model accuracy and reduce manpower requirements.

 

In this RFI, SRWG/TSS is seeking information that will likely be used in developing a Request for Proposal (RFP) to supply and implement this software.

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Back Ground HistoryBack Ground History

In July 2006, SRWG Evaluated The Base Case ProcessSRWG (Randy Rhodes) Meetings with WECC RC In Vancouver, WAPCC/OC Conference Call Meeting – May 29th, 2009

OC agreed that a RFI would be the next step for BCCS

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Planning FunctionsPlanning Functions

The two primary Planning deliverables are to deliver a construction plan and establish boundary operating conditions for the transmission system. To support these primary deliverables and other needs, Planners:

Validate/establish path ratingsRespond to generation interconnection requestsRespond to transmission service requestsPerform stability studiesExamine major transmission changesEvaluate system device changes/additions/deletionsSupport the WECC Annual Study ProgramSupport their company Integrated Resource Planning (IRP) processSupport TEPPC and other regional transmission planning needs

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Current Base Case Preparation Current Base Case Preparation ProcessProcess

The current interaction process between Transmission Planners and WECC

A base case generally requires 14 weeks or longer from data request to posting the base case on WECC website.

currentbasecaseassembly.docx

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SRWG’s Evaluation SRWG’s Evaluation Issues With The Current Base Issues With The Current Base

Case Preparation ProcessCase Preparation Process

Process

Manual Base Case Preparation Process

Time Consuming for Area Coordinator’s Communication

Data Submittal Consistency (Improved With Short Term Solution)

Late Data submittals (Improved With Short Term Solution)

Lack Viewing of Significant Additions

Lack of a Centralized Data Base System

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Planning NeedsPlanning Needs

WECC's System Review Work Group (SRWG), as a representative of the transmission planning community, has tentatively established a set of needs and desired improvements to support the base case development process and aid the planning community as a whole. Needs and desired improvements are:

Improve data entry

Improve Area Coordinators Communication

Independent of Power Flow Format

Better data error checking and correction capability

Store current/future year topologies of the system

Add more automation to the planning process (less manual)

Potentially increase the number of yearly base cases

Be able to more efficiently make base case variations

To have a more centralized data base

Web based accessibility

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Planning’s Needs (Cont)Planning’s Needs (Cont)

Potentially develop longer-range cases (10-15 years)Increase efficient to assemble disturbance validation casesImprove data consistency/accuracyNeed a way to help validate load modelingNeed a way to validate dispatch patternsCapture any real-time scenario for examinationCapture sequential system conditions for studyEasy project additions for any year-out casesModel voltages below 100kV

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BCCS ImplementationBCCS Implementation

WECC anticipates that this system could be hosted at the WECC facilities. The primary systems at that location include the EMS and associated model management environment. The following diagram illustrates the relationship between the BCCS and the WSM environment in the Reliability Centers in more detail.

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BCCS Implementation (con’t)BCCS Implementation (con’t)

The Full BCCS Implementation Will Take Place in Stages and in Coordination with the Further Development of the WSM.

eTerraSource(Operations Modeling

Environment)

eTerraSource(Operations Modeling

Environment)

WSMWSM

EMSProduction

Monthly Builds

Second (Backup) RC

Primary RC

EMSTest

ModelValidation

• Network updates are received from WECC member BA ’s and TO’s by email and entered manually.

• Future automation possible.

Base Case Configuration System(Planning Modeling Environment)

Base Case Configuration System(Planning Modeling Environment)

Base ModelBase

Model

Published Study Cases

Per Annual Case Calendar

Second Host (Backup RC Location)

WECC Planning Staff (SLC)

ModelEditing / Updates

Model Synch (future)Model Synch (future)

• CIM -based export/import available for future integration

TOTOTOTO

BABA

TOTO

BABA BABA• Two Reliability Center locations

(Vancouver and Loveland)• Real -time ICCP data for

transmission and generation updated every 10 seconds

Planning Model Export (future)Planning Model Export (future)

• Real -time snapshot export for disturbance cases or model validation

Future ProjectsFuture

Projects

Primary Host (RC Location)

IntertieSchedules

IntertieSchedules

Power Flow Software

Model Editor

Case Builder

Case Development

WECC Member Planners and Area

Coordinators

ModelUpdates

User Alerts, Notifications

eTerraSource(Operations Modeling

Environment)

eTerraSource(Operations Modeling

Environment)

WSMWSM

EMSProduction

Monthly Builds

Second (Backup) RC

Primary RC

EMSTest

ModelValidation

• Network updates are received from WECC member BA ’s and TO’s by email and entered manually.

• Future automation possible.

Base Case Configuration System(Planning Modeling Environment)

Base Case Configuration System(Planning Modeling Environment)

Base ModelBase

Model

Published Study Cases

Per Annual Case Calendar

Second Host (Backup RC Location)

WECC Planning Staff (SLC)

ModelEditing / Updates

Model Synch (future)Model Synch (future)

• CIM -based export/import available for future integration

TOTOTOTO

BABA

TOTO

BABA BABA• Two Reliability Center locations

(Vancouver and Loveland)• Real -time ICCP data for

transmission and generation updated every 10 seconds

Planning Model Export (future)Planning Model Export (future)

• Real -time snapshot export for disturbance cases or model validation

Future ProjectsFuture

Projects

Primary Host (RC Location)

IntertieSchedules

IntertieSchedules

Power Flow Software

Model Editor

Case Builder

Case Development

WECC Member Planners and Area

Coordinators

ModelUpdates

User Alerts, Notifications

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SRWG’s Conclusion SRWG’s Conclusion

Conceptual BCCSAlthough there are programs available to potentially meet planning needs, further evaluation is required to make that determination.

West Wide System ModelA tool to meet operation’s needs and to develop validation base casesAlthough the WSM meets some planning needs, additional tools are required to fully address base case preparation issues. For example, but not limited to:

Model Voltages Below 100kVIdentify Facility Outages When The Snap – Shot is Taken of the SystemImprove Interchange DiscrepanciesImprove Communication Between Area CoordinatorsProvide the ability to build long term base cases

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