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
| Transmission Circuit Automatic Outage Counts | ||||||||||
| Voltage Type | Operating (kV) | FRCC | MRO | NPCC | RFC | SERC | SPP | TRE | WECC | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| Momentary Outage | ||||||||||
| AC | 100-199 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| AC | 200-299 | 95 | W | W | 57 | 189 | W | - | 261 | 602 |
| AC | 300-399 | - | 66 | 32 | 150 | 46 | 94 | 121 | 87 | 596 |
| AC | 400-599 | 1 | W | - | 7 | 46 | W | - | 96 | 150 |
| AC | 600+ | - | - | W | 17 | - | - | - | - | 17 |
| AC Total | 96 | 110 | 35 | 231 | 281 | 115 | 121 | 444 | 1,433 | |
| Total AC Outages per 1,000 Circuit Miles | 13 | 6 | 5 | 9 | 8 | 15 | 13 | 7 | 8 | |
| DC Total | - | W | W | W | - | - | - | W | 44 | |
| Total DC Outages per 1,000 Circuit Miles | - | W | W | W | - | - | - | W | 11 | |
| Sustained Outage | ||||||||||
| AC | 100-199 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| AC | 200-299 | 133 | W | 13 | 138 | 179 | W | - | 504 | 967 |
| AC | 300-399 | - | 111 | 50 | 102 | 59 | 93 | 71 | 186 | 672 |
| AC | 400-599 | 3 | W | - | 14 | 82 | W | - | 148 | 247 |
| AC | 600+ | - | - | W | 10 | - | - | - | - | 10 |
| AC Total | 136 | 217 | 70 | 264 | 320 | 128 | 71 | 838 | 2,044 | |
| Total Outages per 1,000 Circuit Miles | 19 | 11 | 10 | 10 | 10 | 17 | 7 | 14 | 12 | |
| DC Total | - | W | W | W | - | - | - | W | 61 | |
| Total DC Outages per 1,000 Circuit Miles | - | W | W | W | - | - | - | W | 15 | |
| Momentary and Sustained outages | ||||||||||
| AC | 100-199 | NA | NA | NA | NA | NA | NA | NA | NA | NA |
| AC | 200-299 | 228 | W | W | 195 | 368 | W | - | 765 | 1,569 |
| AC | 300-399 | - | 177 | 82 | 252 | 105 | 187 | 192 | 273 | 1,268 |
| AC | 400-599 | 4 | W | - | 21 | 128 | W | - | 244 | 397 |
| AC | 600+ | - | - | W | 27 | - | - | - | - | 27 |
| AC Total | 232 | 327 | 105 | 495 | 601 | 243 | 192 | 1,282 | 3,477 | |
| Total AC Outages per 1,000 Circuit Miles | 33 | 17 | 15 | 20 | 18 | 31 | 20 | 21 | 21 | |
| DC Total | - | W | W | W | - | - | - | W | 105 | |
| Total DC Outages per 1,000 Circuit Miles | - | W | W | W | - | - | - | W | 26 | |
| Notes: • NA - Not Available • W - Withheld • 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. • Momentary Outage is an automatic outage with an outage duration less than one minute. • 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." |
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