County annual report · FIPS 56037
2023 Sweetwater County, WY Power Outage Report
In 2023, customers in Sweetwater County, WY went without power for an average of 1.6 hours, a total of 40K customer-hours (Wyoming average 2.0 hours). That ranks 14th worst of 20 Wyoming counties and 2461st 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 Sweetwater 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 | June 27, 2023 13:45 | June 27, 2023 22:00 | 8h 15m | 4,060 | 2,305 |
| 2 | April 29, 2023 22:00 | April 30, 2023 02:15 | 4h 15m | 4,024 | 3,290 |
| 3 | April 18, 2023 20:30 | April 19, 2023 02:15 | 5h 45m | 1,430 | 2,900 |
| 4 | December 3, 2023 09:00 | December 3, 2023 13:00 | 4h | 781 | 1,785 |
| 5 | January 13, 2023 19:30 | January 13, 2023 23:00 | 3h 30m | 397 | 914 |
| 6 | November 7, 2023 14:30 | November 7, 2023 19:15 | 4h 45m | 390 | 453 |
| 7 | October 2, 2023 14:45 | October 2, 2023 17:45 | 3h | 385 | 106 |
| 8 | October 14, 2023 19:15 | October 14, 2023 21:15 | 2h | 279 | 72 |
| 9 | June 14, 2023 13:15 | June 14, 2023 22:45 | 9h 30m | 244 | 578 |
| 10 | June 8, 2023 21:30 | June 9, 2023 03:15 | 5h 45m | 202 | 1,162 |
Outage episodes by size in 2023: 32 reached 100+ customers, 3 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 Sweetwater 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Bridger Valley Elec Assn, 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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 25,475 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. Sweetwater County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Sweetwater 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/sweetwater-county