County annual report · FIPS 49007
2023 Carbon County, UT Power Outage Report
In 2023, customers in Carbon County, UT went without power for an average of 7.4 hours, a total of 29K customer-hours (Utah average 2.5 hours). That ranks 6th worst of 26 Utah counties and 1092nd of 2,977 nationally.
Compared with UT, the US and 2022
Coverage line is EAGLE-I's share of Utah customers tracked each year.
Biggest outages in Carbon 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 | July 26, 2023 19:15 | July 26, 2023 21:00 | 1h 45m | 1,959 | 2,332 |
| 2 | July 26, 2023 22:00 | July 27, 2023 03:45 | 5h 45m | 971 | 255 |
| 3 | July 25, 2023 21:30 | July 26, 2023 00:45 | 3h 15m | 970 | 1,235 |
| 4 | April 14, 2023 14:30 | April 14, 2023 15:15 | 45m | 907 | 680 |
| 5 | July 19, 2023 22:45 | July 20, 2023 05:00 | 6h 15m | 904 | 1,390 |
| 6 | August 23, 2023 17:00 | August 23, 2023 19:30 | 2h 30m | 904 | 2,260 |
| 7 | July 20, 2023 15:45 | July 20, 2023 23:45 | 8h | 903 | 2,393 |
| 8 | August 12, 2023 18:45 | August 12, 2023 20:30 | 1h 45m | 903 | 1,580 |
| 9 | September 30, 2023 20:15 | September 30, 2023 22:00 | 1h 45m | 899 | 1,124 |
| 10 | November 2, 2023 18:15 | November 2, 2023 23:30 | 5h 15m | 896 | 4,571 |
Outage episodes by size in 2023: 20 reached 100+ customers, 1 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 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2023 | 8.2 hrs | 1.42 | 1.9 hrs | 0.99 |
| 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 2023; 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, 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/utah/carbon-county