County annual report · FIPS 56045
2018 Weston County, WY Power Outage Report
In 2018, customers in Weston County, WY went without power for an average of 0.0 hours, a total of 115 customer-hours (Wyoming average 1.2 hours). That ranks 19th worst of 21 Wyoming counties and 2715th of 2,798 nationally.
Compared with WY, the US and 2017
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Weston County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2018 14:15 | September 10, 2018 14:30 | 15m | 44 | 11 |
| 2 | October 3, 2018 17:30 | October 3, 2018 18:45 | 1h 15m | 20 | 25 |
| 3 | October 3, 2018 19:30 | October 3, 2018 22:00 | 2h 30m | 20 | 50 |
| 4 | April 12, 2018 19:30 | April 12, 2018 19:45 | 15m | 9 | 2 |
| 5 | May 14, 2018 17:15 | May 14, 2018 18:00 | 45m | 9 | 7 |
| 6 | March 3, 2018 00:00 | March 3, 2018 00:45 | 45m | 5 | 4 |
| 7 | March 13, 2018 16:30 | March 13, 2018 17:45 | 1h 15m | 5 | 6 |
| 8 | September 14, 2018 15:00 | September 14, 2018 16:15 | 1h 15m | 3 | 4 |
| 9 | April 18, 2018 15:45 | April 18, 2018 17:30 | 1h 45m | 2 | 4 |
| 10 | October 21, 2018 14:00 | October 21, 2018 14:15 | 15m | 2 | 1 |
Outage episodes by size in 2018: 0 reached 100+ customers, 0 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 2018, 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. | 2018 | 3.8 hrs | 1.21 | 3.7 hrs | 1.17 |
| Powder River Energy Corp | 2018 | 2.8 hrs | 1.52 | 2.8 hrs | 1.52 |
| 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 62% of Wyoming's customers in 2018; 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, 2018, 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/2018/wyoming/weston-county