Outage Coordination

Process and New Equipment

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IntroductionThis presentation is intended to increase

knowledge of outage coordination and NOMCR submittal processes

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ObjectivesAt the completion of this course of instruction you

will:Identify the ERCOT Outage Coordination

timelinesIdentify the timeline requirement for a

maintenance level outageIdentify the maximum size of a group outageIdentify the correct process order for new

equipment in the ERCOT system

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DefinitionsNOMCR – Network Operations Model

Change Request

ResTran – RESource Owned TRANsmission Equipment

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Outage Coordination Planned Transmission Timeline

Request for Approval* ERCOT must Approve or Reject*

More than 90 days 75 days

46–90 days 30 days

9–45 days 4 days

4–8 days No later than 1800 hours 3 days

3 days No later than 1800 hours 2 days

*Prior to Planned Start Date/Time5

Outage Coordination Planned Resource Timeline

QSE Request for Approval

ERCOT Approval or Rejection

Three days 1800 hours, two days prior to start of proposed Outage

Four to eight days 1800 hours, three days prior to start of proposed Outage

Nine to 45 days Five Business days after submission. Outages are automatically accepted if not rejected at the end of the fifth Business Day following receipt of request.

Greater than 45 days ERCOT must accept, but may discuss reliability and scheduling to minimize cost.

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•Timelines for Reliability Resource Planned Outages(RMR and Black Start)

Note: ERCOT may, at its discretion, relax the 30 day Notice requirement.

Request for Approval

ERCOT Approval or Rejection

Not less than 30 days

15 days before start of proposed Outage

More than 45 days 30 days before the start of proposed Outage

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Outage Coordination Planned Resource Timeline

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Outage Coordination Maintenance Timeline

Definition: Initiated manuallyto remove equipment fromservice to perform work on components than could be postponed briefly but is required to prevent potential forced outage and cannot be postponed until the next planned outage.

Level 1: Applies to equipment which must be removed from service within 24 hours. (M1)

Level 2: Identifies equipment which must be removed from service within 7 days. (M2)

Level 3: Applies to equipment which must be removed from service within 30 days. (M3)

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ResTranForms are available on resquestEmail forms to

ResTranOutages@ercot.comDifferent forms for Forced Outages

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ResTran - Planned or Maintenance

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ResTran - Planned or Maintenance

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ResTran - Forced Outages

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d

ResTran - Forced Outages

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ResTran - Outage Form

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ResTran - Outage Form

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ALWAYS review the outages after they were submitted by ERCOT on your behalf to make sure that the outage does exactly what you want it to do when you want it to.

To update an outage email the most up-to-date form with the new updated information added.

ResTranOutage Form

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Outage Coordination Approvals

Approved Outages can be withdrawn any time before it is completed.

Planned transmission outages are always studied.

Approved -> Done by coordinatorsAccepted -> Automatic

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Outage Coordination Availability

• Short Term: M-F 6AM-6PM, Sa-Su 6AM – 2PM– Rotating Shifts*

• Long Term: M-F 6AM-5PM• Use OC Blast Accounts

– Email: OPSOutageCoordination@ERCOT.com– Phone: (512) 248 – 6841

• No Voicemail*

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New EquipmentCreate plan for switching from old to new

equipmentMay require pseudo equipment

i.e. Breakers to switch between equipment…

Submit a NOMCR for all new and pseudo equipment

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New EquipmentPseudo Equipment

Pseudo Breaker

BreakerNew Breaker

Old Breaker

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NOMCRs

A

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NOMCRs

NOMCRs

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NOMCRs

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NOMCRs

A

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New Equipment OutagesAfter the NOMCR has been processed

and the equipment has been added to the OS Database

Planned End Date is the Energization Date

NOMCR >> OS >> Model

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**BONUS**Extending an outage

New Planned End DateUnlimited extensionsFR->FE || (PL,M1,M2,M3)->UE

Adding Requestor Notes1000 Characters Only once per group outage

The maximum Group Outage size is 30 pieces of equipment

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**BONUS MIS**

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Outage Approved/Accepted Outage Rejected

Removed from MIS

2 Hrs. After Actual End Entered

Out

age

With

draw

n

Planned End > 1 Yr. Old

Planned End > 1 Yr. Old

*All reports are automatically updated every hour on the hour

*When an outage is added to one report it is removed from

the previous report

Or Outage Canceled

Outage Canceled

Outage Submitted

Rejected Transmission

Outages

Withdrawal of Approved and

Accepted Transmission Outages

Approved and Accepted

Transmission Outages

Proposed Transmission

Outages

Questions

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Questions1. The last day to enter a Planned Transmission

Outage is ________ before the Planned Start Date.

A) 1 DayB) 3 DaysC) 8 DaysD) 45 Days

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Questions2. Planned Resource Outages must be accepted

when entered ______ before the Planned Start Date.

A) >3 DaysB) >9 DaysC) >30 DaysD) >45 Days

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Questions3. A level 2 maintenance outage (M2) means that

the outaged equipment must be removed _______ to prevent a forced outage.

A) <7 DaysB) <30 DaysC) <7 HoursD) <1 Hour

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Questions4. The maximum size of a group outage is

_______.

A) 10 pieces of equipmentB) UnlimitedC) 30 pieces of equipmentD) 2 megabytes of equipment

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Questions5. What is the correct process order for new

equipment in the ERCOT system?

A) NOMCR >> OS >> ModelB) NOMCR >> Model >> OS C) OS >> Model >> NOMCRD) Model >> NOMCR >> OS

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