County annual report · FIPS 56011
2020 Crook County, WY Power Outage Report
In 2020, customers in Crook County, WY went without power for an average of 14.2 hours, a total of 65K customer-hours (Wyoming average 3.4 hours). That ranks 2nd worst of 22 Wyoming counties and 586th of 3,019 nationally.
Compared with WY, the US and 2019
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Crook County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 20, 2020 20:15 | March 20, 2020 22:15 | 2h | 2,560 | 2,271 |
| 2 | June 18, 2020 22:45 | June 19, 2020 13:30 | 14h 45m | 1,241 | 11K |
| 3 | May 21, 2020 16:45 | May 21, 2020 19:30 | 2h 45m | 1,214 | 678 |
| 4 | June 6, 2020 23:30 | June 8, 2020 15:30 | 1d 16h | 1,196 | 3,924 |
| 5 | June 29, 2020 10:45 | June 30, 2020 21:00 | 1d 10h | 1,062 | 7,076 |
| 6 | June 29, 2020 03:00 | June 29, 2020 07:00 | 4h | 962 | 1,690 |
| 7 | January 27, 2020 18:15 | January 27, 2020 18:30 | 15m | 884 | 221 |
| 8 | June 28, 2020 21:15 | June 28, 2020 22:45 | 1h 30m | 569 | 587 |
| 9 | April 13, 2020 17:30 | April 13, 2020 19:00 | 1h 30m | 557 | 738 |
| 10 | January 22, 2020 16:30 | January 22, 2020 17:00 | 30m | 550 | 275 |
Outage episodes by size in 2020: 39 reached 100+ customers, 5 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Crook County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Black Hills Power, Inc. | 2020 | 63 min | 0.56 | 30 min | 0.36 |
| Powder River Energy Corp | 2020 | 4.8 hrs | 2.30 | 3.2 hrs | 1.94 |
| Southeast Electric Coop, Inc | - | - | - | - | - |
| City of Gillette - (WY) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 71% of Wyoming's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,545 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Crook County has data for 2016, 2018–2025.
Cite this report
MassOutage (massoutage.com), Crook County, WY annual power outage report, 2020, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2020/wyoming/crook-county