|    Account Log-In/Register    |    Contact Us
Disturbances by Quarter
Reliability Performance Gap Index

View Annual Data | View Data by Region | View Data by Cause

About this Metric

This index is designed to measure how far the system is from expected performance under contingencies (dynamic conditions).  The RPG is defined as number of disturbance events in Categories 2 through 5 for a given period.  It measures the change in system ability to cope with pre-studied contingencies and unforeseen disturbances.  Ultimately, RPG indicates the most important measure of reliability standard and enforcement program effectiveness:  the number of events declining toward zero. 

home | account log-in/register | legal and privacy/trademark policy | site map | careers | contact us

Atlanta Office | 3353 Peachtree Road, NE Suite 600 North Tower, Atlanta, GA 30326 | 404-446-2560
Washington Office | 1325 G Street, NW Suite 600, Washington, DC 20005| 202-400-3000

Copyright 2016 North American Electric Reliability Corporation. All rights reserved.