County annual report · FIPS 49007
2025 Carbon County, UT Power Outage Report
In 2025, customers in Carbon County, UT went without power for an average of 12.5 hours, a total of 48K customer-hours (Utah average 3.1 hours). That ranks 5th worst of 26 Utah counties and 621st of 3,000 nationally.
Compared with UT, the US and 2024
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Carbon 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 | December 22, 2025 01:45 | December 22, 2025 06:30 | 4h 45m | 1,370 | 4,791 |
| 2 | May 29, 2025 21:00 | May 30, 2025 03:30 | 6h 30m | 1,222 | 3,918 |
| 3 | June 1, 2025 23:30 | June 2, 2025 05:15 | 5h 45m | 1,221 | 6,106 |
| 4 | September 22, 2025 21:45 | September 22, 2025 23:00 | 1h 15m | 1,210 | 606 |
| 5 | August 23, 2025 20:30 | August 24, 2025 03:00 | 6h 30m | 985 | 2,922 |
| 6 | July 3, 2025 07:30 | July 3, 2025 17:45 | 10h 15m | 900 | 2,129 |
| 7 | May 29, 2025 18:15 | May 29, 2025 20:00 | 1h 45m | 898 | 912 |
| 8 | February 17, 2025 17:30 | February 17, 2025 21:45 | 4h 15m | 817 | 3,268 |
| 9 | June 22, 2025 07:00 | June 22, 2025 23:00 | 16h | 709 | 5,441 |
| 10 | December 1, 2025 21:45 | December 1, 2025 23:00 | 1h 15m | 709 | 396 |
Outage episodes by size in 2025: 30 reached 100+ customers, 4 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 Carbon 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 |
| City of Helper - (UT) | - | - | - | - | - |
| Price Municipal Corporation | - | - | - | - | - |
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 Utah's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,849 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. Carbon County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Carbon County, UT 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/utah/carbon-county