Table 8.12.A. U.S. Transmission Circuit Sustained Automatic Outage Counts and Hours
by High-Voltage Size and NERC Region, 2014
 

Sustained Automatic Outage Counts
Voltage Region
Type Operating (kV) frcc mro npcc rfc serc spp tre wecc Contiguous U.S.
Grand Total   . . . . . . . . --

 

Total Outages per 1,000 Circuit Miles
  Region
  frcc mro npcc rfc serc spp tre wecc Contiguous U.S.
Rate   . . . . . . . . --

 

Sustained Automatic Outage Hours
Voltage Region
Type Operating (kV) frcc mro npcc rfc serc spp tre wecc Contiguous U.S.
Grand Total   . . . . . . . . --

 

Outage Hours per Outage Incident
  Region
  frcc mro npcc rfc serc spp tre wecc Contiguous U.S.
Rate   . . . . . . . . --

Notes:
* = Value is less than half of the smallest unit of measure. (e.g., for values with no decimals, the smallest unit is 1 then values under 0.5 are shown as *.)
Circuit Miles for each region is displayed in Table 8.10.A.
An Automatic Outage is an outage which results from the automatic operation of a switching device, causing an Element to change from an In-Service State to a not In-Service State.
A Sustained Outage is an automatic outage with an outage duration of a minute or greater.
Source: U.S. Energy Information Administration, Form EIA-411, "Coordinated Bulk Power Supply Program Report."