2021 Wyoming Power Outage Report
In 2021, the average Wyoming customer went without power for about 2.2 hours, the 42nd worst of 51 states (US average 8.4 hours). Figures from DOE/ORNL EAGLE-I, including major storm days.
Avg hrs / customer
2.2
vs prior year
▼ 34%
vs 2020
Customer-hours out
716K
Peak customers out
7,546
across the state at once
EAGLE-I coverage
71%
of WY customers
Counties reporting
21
Wyoming year over year
All 21 Wyoming counties, 2021
Ranked by average hours without power per customer. Each county links to its annual report.
| # | County | Hrs / customer | Customer-hours | Customers | Peak out | Events |
|---|---|---|---|---|---|---|
| 1 | Crook County | 10.1 | 46K | 4,545 | 1,462 | 313 |
| 2 | Washakie County | 6.5 | 1,734 | 265 | 176 | 75 |
| 3 | Weston County | 6.4 | 25K | 3,933 | 847 | 266 |
| 4 | Converse County | 6.3 | 48K | 7,624 | 2,609 | 1,312 |
| 5 | Campbell County | 5.0 | 140K | 28,060 | 2,200 | 542 |
| 6 | Sheridan County | 4.1 | 72K | 17,618 | 2,784 | 232 |
| 7 | Big Horn County | 3.6 | 14K | 3,930 | 2,303 | 118 |
| 8 | Johnson County | 3.6 | 20K | 5,448 | 1,236 | 278 |
| 9 | Sublette County | 3.1 | 16K | 5,123 | 4,170 | 191 |
| 10 | Sweetwater County | 2.4 | 61K | 25,475 | 5,058 | 442 |
| 11 | Hot Springs County | 2.0 | 4,600 | 2,310 | 998 | 86 |
| 12 | Natrona County | 1.7 | 81K | 47,992 | 7,526 | 662 |
| 13 | Fremont County | 1.5 | 41K | 26,823 | 5,307 | 305 |
| 14 | Carbon County | 1.5 | 16K | 10,767 | 768 | 224 |
| 15 | Uinta County | 1.3 | 16K | 12,368 | 1,278 | 204 |
| 16 | Park County | 1.2 | 16K | 14,005 | 3,222 | 202 |
| 17 | Laramie County | 1.1 | 60K | 52,987 | 3,529 | 562 |
| 18 | Albany County | 1.0 | 23K | 23,303 | 2,653 | 263 |
| 19 | Lincoln County | 0.8 | 9,616 | 12,820 | 2,200 | 174 |
| 20 | Teton County | 0.0 | 763 | 18,592 | 106 | 35 |
| 21 | Platte County | - | 2,847 | - | 301 | 19 |
Biggest Wyoming outages of 2021
Up to 25 county outage episodes with the most customers out at once.
| # | County | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|---|
| 1 | Natrona County, WY | April 2, 2021 15:30 | April 2, 2021 23:15 | 7h 45m | 7,526 | 15K |
| 2 | Fremont County, WY | July 2, 2021 04:15 | July 2, 2021 07:45 | 3h 30m | 5,307 | 19K |
| 3 | Sweetwater County, WY | February 7, 2021 01:45 | February 7, 2021 07:45 | 6h | 5,058 | 16K |
| 4 | Fremont County, WY | December 9, 2021 07:00 | December 9, 2021 08:30 | 1h 30m | 5,041 | 1,320 |
| 5 | Sublette County, WY | May 16, 2021 00:45 | May 16, 2021 02:15 | 1h 30m | 4,170 | 5,214 |
| 6 | Laramie County, WY | March 15, 2021 08:30 | March 15, 2021 08:45 | 15m | 3,529 | 882 |
| 7 | Park County, WY | February 2, 2021 21:00 | February 2, 2021 23:00 | 2h | 3,222 | 808 |
| 8 | Laramie County, WY | June 9, 2021 03:30 | June 9, 2021 08:30 | 5h | 2,881 | 3,351 |
| 9 | Fremont County, WY | August 20, 2021 05:45 | August 20, 2021 08:45 | 3h | 2,807 | 8,418 |
| 10 | Sheridan County, WY | October 12, 2021 08:45 | October 13, 2021 21:00 | 1d 12h | 2,784 | 28K |
| 11 | Albany County, WY | January 6, 2021 21:00 | January 7, 2021 05:15 | 8h 15m | 2,653 | 694 |
| 12 | Converse County, WY | November 10, 2021 19:30 | November 10, 2021 21:15 | 1h 45m | 2,609 | 653 |
| 13 | Natrona County, WY | March 10, 2021 02:15 | March 10, 2021 09:15 | 7h | 2,494 | 4,026 |
| 14 | Sweetwater County, WY | August 26, 2021 02:00 | August 26, 2021 10:45 | 8h 45m | 2,477 | 1,056 |
| 15 | Laramie County, WY | March 10, 2021 09:15 | March 10, 2021 12:45 | 3h 30m | 2,471 | 7,703 |
| 16 | Laramie County, WY | January 14, 2021 03:30 | January 14, 2021 08:45 | 5h 15m | 2,455 | 5,290 |
| 17 | Converse County, WY | March 14, 2021 08:45 | March 15, 2021 04:00 | 19h 15m | 2,449 | 2,438 |
| 18 | Laramie County, WY | March 10, 2021 04:30 | March 10, 2021 08:30 | 4h | 2,362 | 695 |
| 19 | Albany County, WY | May 8, 2021 11:15 | May 9, 2021 02:30 | 15h 15m | 2,306 | 17K |
| 20 | Big Horn County, WY | July 9, 2021 23:30 | July 10, 2021 03:00 | 3h 30m | 2,303 | 1,314 |
| 21 | Campbell County, WY | October 13, 2021 05:15 | October 14, 2021 20:15 | 1d 15h | 2,200 | 14K |
| 22 | Lincoln County, WY | August 1, 2021 14:30 | August 1, 2021 16:45 | 2h 15m | 2,200 | 1,066 |
| 23 | Albany County, WY | May 8, 2021 09:45 | May 8, 2021 10:15 | 30m | 2,192 | 549 |
| 24 | Campbell County, WY | April 19, 2021 20:15 | April 19, 2021 20:30 | 15m | 2,167 | 542 |
| 25 | Campbell County, WY | June 29, 2021 06:15 | June 29, 2021 13:15 | 7h | 2,067 | 2,618 |
EAGLE-I tracked about 71% of Wyoming's electricity customers in 2021; outages at utilities it does not see are not counted. Hours per customer divide outage customer-minutes by modeled county customers.
Part of the 2021 US Power Outage Report.
Data from DOE EAGLE-I, every source we read.