County annual report · FIPS 56045
2023 Weston County, WY Power Outage Report
In 2023, customers in Weston County, WY went without power for an average of 3.3 hours, a total of 13K customer-hours (Wyoming average 2.0 hours). That ranks 5th worst of 20 Wyoming counties and 1850th 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 Weston 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 | October 12, 2023 19:15 | October 12, 2023 22:45 | 3h 30m | 1,140 | 1,466 |
| 2 | June 10, 2023 18:45 | June 10, 2023 22:00 | 3h 15m | 692 | 1,317 |
| 3 | June 12, 2023 14:45 | June 12, 2023 15:30 | 45m | 692 | 457 |
| 4 | August 31, 2023 22:15 | August 31, 2023 22:30 | 15m | 494 | 124 |
| 5 | June 26, 2023 11:45 | June 26, 2023 15:15 | 3h 30m | 307 | 674 |
| 6 | September 7, 2023 16:30 | September 7, 2023 18:45 | 2h 15m | 229 | 283 |
| 7 | December 14, 2023 15:15 | December 14, 2023 22:00 | 6h 45m | 195 | 70 |
| 8 | January 5, 2023 15:00 | January 5, 2023 18:15 | 3h 15m | 152 | 491 |
| 9 | April 24, 2023 15:15 | April 24, 2023 19:45 | 4h 30m | 147 | 545 |
| 10 | July 29, 2023 07:45 | July 29, 2023 20:15 | 12h 30m | 145 | 1,515 |
Outage episodes by size in 2023: 19 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 Weston 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 |
|---|---|---|---|---|---|
| Black Hills Power, Inc. | 2023 | 66 min | 0.77 | 64 min | 0.74 |
| Powder River Energy Corp | 2023 | 3.4 hrs | 1.40 | 3.4 hrs | 1.40 |
| Niobrara Electric 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 ÷ 3,933 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. Weston County has data for 2016–2025.
Cite this report
MassOutage (massoutage.com), Weston 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/weston-county