County annual report · FIPS 56011
2023 Crook County, WY Power Outage Report
In 2023, customers in Crook County, WY went without power for an average of 17.8 hours, a total of 81K customer-hours (Wyoming average 2.0 hours). That ranks 1st worst of 20 Wyoming counties and 474th of 2,977 nationally.
Compared with WY, the US and 2022
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Crook County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 16, 2023 11:30 | September 17, 2023 19:15 | 1d 7h | 1,273 | 23K |
| 2 | June 27, 2023 14:30 | June 28, 2023 16:30 | 1d 2h | 1,259 | 452 |
| 3 | August 1, 2023 01:30 | August 1, 2023 14:15 | 12h 45m | 959 | 2,450 |
| 4 | April 7, 2023 17:30 | April 7, 2023 17:45 | 15m | 955 | 239 |
| 5 | September 17, 2023 20:15 | September 18, 2023 14:00 | 17h 45m | 880 | 14K |
| 6 | February 6, 2023 16:45 | February 6, 2023 22:45 | 6h | 824 | 4,944 |
| 7 | April 26, 2023 22:00 | April 27, 2023 00:30 | 2h 30m | 606 | 456 |
| 8 | June 24, 2023 01:15 | June 24, 2023 12:15 | 11h | 571 | 603 |
| 9 | September 11, 2023 23:15 | September 11, 2023 23:30 | 15m | 554 | 139 |
| 10 | November 23, 2023 22:00 | November 26, 2023 15:45 | 2d 17h | 518 | 11K |
Outage episodes by size in 2023: 37 reached 100+ customers, 2 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 2023, 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. | 2023 | 66 min | 0.77 | 64 min | 0.74 |
| Powder River Energy Corp | 2023 | 3.4 hrs | 1.40 | 3.4 hrs | 1.40 |
| 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 n/a of Wyoming's customers in 2023; 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, 2023, 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/2023/wyoming/crook-county