County annual report · FIPS 56035
2024 Sublette County, WY Power Outage Report
In 2024, customers in Sublette County, WY went without power for an average of 8.2 hours, a total of 42K customer-hours (Wyoming average 2.4 hours). That ranks 4th worst of 20 Wyoming counties and 1098th of 2,990 nationally.
Compared with WY, the US and 2023
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Sublette County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 11, 2024 22:30 | June 12, 2024 00:00 | 1h 30m | 5,905 | 8,830 |
| 2 | June 12, 2024 03:00 | June 12, 2024 04:15 | 1h 15m | 5,905 | 5,905 |
| 3 | July 27, 2024 14:15 | July 28, 2024 00:00 | 9h 45m | 1,878 | 11K |
| 4 | August 10, 2024 23:00 | August 11, 2024 04:15 | 5h 15m | 1,141 | 2,618 |
| 5 | October 16, 2024 16:30 | October 16, 2024 19:15 | 2h 45m | 951 | 426 |
| 6 | September 12, 2024 04:15 | September 12, 2024 07:00 | 2h 45m | 946 | 476 |
| 7 | July 24, 2024 20:30 | July 25, 2024 01:00 | 4h 30m | 371 | 241 |
| 8 | April 15, 2024 19:45 | April 15, 2024 20:00 | 15m | 364 | 91 |
| 9 | May 17, 2024 21:45 | May 20, 2024 14:30 | 2d 16h | 317 | 2,171 |
| 10 | July 30, 2024 15:00 | July 30, 2024 20:15 | 5h 15m | 229 | 1,194 |
Outage episodes by size in 2024: 20 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 Sublette County reported on EIA Form 861 for 2024, 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 |
| Lower Valley Energy Inc | - | - | - | - | - |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,123 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. Sublette County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sublette County, WY annual power outage report, 2024, 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/2024/wyoming/sublette-county