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NERC Data and InformationNERC Data and Information ProcessesReliability Issues Steering Committee MeetingMarch 12, 2013

NERC Databases ‐ Overview

TADS( )

EA( )

Event Report Cause Codes

Transmission Outages and Cause Codes

(OATI)(Access) Cause Codes

R li bili

and Cause Codes

G i OGADS(OATI)

RADS(XLS)

Reliability Assessment Data

Generation Outages and Cause Codes

MisOps(OATI)

CRATSProtection System Misoperations and Cause Codes

Violations and Enforcement Records( ) Cause Codes

DADS SED Spare Equipment Demand Response DADS(OATI)

SED(OATI)

Databasep

Performance

2

Reliability Assessments Data Collectiony

RFC SERC

FRCC

MRO

NPCCRFC SERC SPP 

RE

TRE

WECC

RADS(XLS)

FRCC WECC

(XLS)

ES&DLTRASA

Assessments• Summer Assessment• Winter AssessmentElectricity Supply and 

EIA 411ES&D SAWA

Winter Assessment• Long‐Term Reliability  Assessment

y pp yDemand Database EIA‐411

DOE Reports3

Events Analysis Data Collection

RFC SERC

FRCC

MRO

NPCCRFC SERC SPP 

RE

TRE

WECCFRCC WECC

Staff Review and CodingCoding

EAStaff Data AnalysisEA

(Access)Analysis

4

Generating Availability Data System

G GG GG GG

GADS(OATI)

GAR BrochureGenerating 

Availability ReportGenerating Unit Statistical Brochurey p

5

Transmission Availability Data System

TOTOTOTO TO TO TO TOTOTOTO TO TO TO

TADS(OATI)

WECC

(OATI)

TADS

Transmission Availability Data6

Demand Response Availability Data System

DRDRDRDR DR DR DR

DADS(OATI)

DADS

Demand Response Report7

Misoperation Data Collection

RFC SERC

FRCC

MRO

NPCCRFC SERC SPP 

RE

TRE

WECCFRCC WECC

MisOps(OATI)(OATI)

Protection Systems Misoperations Task 

Force

Staff Data Analysis

Force

8

NERC Metrics and Indicators

RADS TADSDADS(OATI)

(XLS) (OATI)IDC/CRC/

TLR RCIS

(OATI)

Metrics

Additi l

CRATSSED(OATI)

MisOps(OATI)

Additional Regional Data

S RSoR

State of Reliability Report9

SRISRI is a WEIGHTED IMPACT METRIC based on the loss of…

TADS GADSOE 417

60%60% 30%30% 10%10%

Load Lost Generation Lost

Load RestorationPromptness

Transmission Lost*System Load System Generation

PromptnessLevel 

Adjustment

System Transmission

Daily SRI = Sum of all event SRIs for that day

*Transmission calculation is simplifiedSRI is often scaled by 1000 for ease of use

Questions and AnswersQuestions and Answers

RELIABILITY | ACCOUNTABILITY