County annual report · FIPS 56005
2025 Campbell County, WY Power Outage Report
In 2025, customers in Campbell County, WY went without power for an average of 5.5 hours, a total of 153K customer-hours (Wyoming average 3.8 hours). That ranks 7th worst of 20 Wyoming counties and 1388th of 3,000 nationally.
Compared with WY, the US and 2024
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Campbell County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 13, 2025 18:30 | November 14, 2025 07:45 | 13h 15m | 12,319 | 50K |
| 2 | January 10, 2025 09:15 | February 1, 2025 04:30 | 21d 19h | 1,675 | 3,047 |
| 3 | June 14, 2025 21:15 | July 2, 2025 00:30 | 17d 3h | 1,468 | 3,590 |
| 4 | September 13, 2025 01:15 | September 13, 2025 20:00 | 18h 45m | 1,167 | 18K |
| 5 | December 18, 2025 07:00 | December 18, 2025 22:45 | 15h 45m | 1,116 | 3,275 |
| 6 | April 6, 2025 08:45 | April 7, 2025 20:00 | 1d 11h | 1,092 | 24K |
| 7 | August 20, 2025 06:45 | September 5, 2025 18:45 | 16d 12h | 1,075 | 8,976 |
| 8 | September 15, 2025 20:15 | September 15, 2025 20:30 | 15m | 1,074 | 269 |
| 9 | May 23, 2025 15:30 | June 10, 2025 14:30 | 17d 23h | 945 | 3,391 |
| 10 | December 20, 2025 02:30 | December 22, 2025 14:45 | 2d 12h | 945 | 1,245 |
Outage episodes by size in 2025: 35 reached 100+ customers, 8 reached 1,000+ customers, 1 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 Campbell County reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2024 | 4.6 hrs | 1.67 | 2.0 hrs | 1.11 |
| Black Hills Power, Inc. | 2024 | 40 min | 0.70 | 40 min | 0.70 |
| Powder River Energy Corp | 2024 | 8.3 hrs | 2.88 | 4.9 hrs | 2.24 |
| 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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 28,060 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. Campbell County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Campbell County, WY annual power outage report, 2025, 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/2025/wyoming/campbell-county