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Reliability Indicators
 

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Home > Program Areas & Departments > Event Analysis, Reliability Assessment, and Performance Analysis > Reliability Indicators
Reliability Indicators
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 Adequate Level of Reliability (ALR) Metrics

Severity Risk Index (SRI)

M-1 Reserve Margin

M-2 BPS Transmission Related Events Resulting in Loss of Load 

M-4/M-4.1 Interconnection Frequency Response/ Inertia and Rate-of-Change-of-Frequency 

M-6/M-7 Disturbance Control Standard Failures (Under Review)

M-8 IROL Exceedance

M-9 Protection System Misoperations

M-11 Energy Emergency Alerts

M-12/M-13 Automatic AC Transmission Outages Initiated by Failed Protection System Equipment / Automatic AC Transmission Outages Initiated by Human Errors

M-14/M-15 Automatic Outages Initiated by Failed AC Substation Equipment / Automatic Outages Initiated by Failed AC Circuit Equipment

M-16 Element Availability​ Percentage (APC) & Unavailability Percentage

M-17 Transmission Outage Severity (TOS)​

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