Electricity
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Electric Power Annual 2010 Data Tables
With Data for 2010 | Release Date: November 09, 2011 | Next Release Date: November 2012
| Eastern Interconnection (FRCC, MRO, NPCC, RFC,SERC, SPP) |
TRE | WECC | Contigious U.S. |
Eastern Interconnection (FRCC, MRO, NPCC, RFC,SERC, SPP) |
TRE | WECC | Contigious U.S. |
|
|---|---|---|---|---|---|---|---|---|
| Momentary Outage Causes | ||||||||
| Weather, excluding lightning | - | - | 1 | 1 | - | - | 5.0 | 3.4 |
| Lightning | 2 | - | 13 | 15 | 22.2 | - | 65.0 | 51.7 |
| Environmental | - | - | - | - | - | - | - | - |
| Contamination | - | - | - | - | - | - | - | - |
| Foreign Interference | - | - | - | - | - | - | - | - |
| Fire | - | - | - | - | - | - | - | - |
| Vandalism, Terrorism, or Malicious Acts | - | - | - | - | - | - | - | - |
| Failed AC Substation Equipment | - | - | - | - | - | - | - | - |
| Failed AC/DC Terminal Equipment | - | - | - | - | - | - | - | - |
| Failed Protection System Equipment | - | - | - | - | - | - | - | - |
| Failed AC Circuit Equipment | 2 | - | 1 | 3 | 22.2 | - | 5.0 | 10.3 |
| Failed DC Circuit Equipment | - | - | - | - | - | - | - | - |
| Vegetation | - | - | - | - | - | - | - | - |
| Power System Condition | - | - | - | - | - | - | - | - |
| Human Error | - | - | -15.0 | 13.8 | ||||
| Other | 4 | - | - | 4 | 44.4 | - | - | 13.8 |
| TOTAL | 9 | - | 20 | 29 | 100.0 | - | 100.0 | 100.0 |
| Sustained Outage Causes | ||||||||
| Weather, excluding lightning | 1 | - | 2 | 3 | 0.7 | - | 3.6 | 1.5 |
| Lightning | 18 | - | 4 | 22 | 12.2 | - | 7.3 | 10.9 |
| Environmental | - | - | 2 | 2 | - | - | 3.6 | 1.0 |
| Contamination | 7 | - | - | 7 | 4.8 | - | - | 3.5 |
| Foreign Interference | 21 | - | - | 21 | 14.3 | - | - | 10.4 |
| Fire | - | - | 24 | 24 | - | - | 43.6 | 11.9 |
| Vandalism, Terrorism, or Malicious Acts | - | - | - | - | - | - | - | - |
| Failed AC Substation Equipment | 28 | - | 3 | 31 | 19.0 | - | 5.5 | 15.3 |
| Failed AC/DC Terminal Equipment | - | - | - | - | - | - | - | - |
| Failed Protection System Equipment | 7 | - | 4 | 11 | 4.8 | - | 7.3 | 5.4 |
| Failed AC Circuit Equipment | 9 | - | 2 | 11 | 6.1 | - | 3.6 | 5.4 |
| Failed DC Circuit Equipment | - | - | - | - | - | - | - | - |
| Vegetation | - | - | 2 | 2 | - | - | 3.6 | 1.0 |
| Power System Condition | 2 | - | - | 2 | 1.4 | - | - | 1.0 |
| Human Error | 11 | - | 6 | 17 | 7.5 | - | 10.9 | 8.4 |
| Unknown | 40 | - | 6 | 46 | 27.2 | - | 10.9 | 22.8 |
| Other | 3 | - | - | 3 | 2.0 | - | - | 1.5 |
| TOTAL | 147 | - | 55 | 202 | 100.0 | - | 100.0 | 100.0 |
| Notes: • Detailed information on the Transmission Availability Data System outage causes is available at: http://www.nerc.com/docs/pc/tadswg/Appendix%207%2020101202a%20clean.pdf Source: U.S. Energy Information Administration, Form EIA-411, "Coordinated Bulk Power Supply Program Report." |
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