County annual report · FIPS 56009
2021 Converse County, WY Power Outage Report
In 2021, customers in Converse County, WY went without power for an average of 6.3 hours, a total of 48K customer-hours (Wyoming average 2.2 hours). That ranks 4th worst of 20 Wyoming counties and 1112th of 2,974 nationally.
Compared with WY, the US and 2020
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Converse County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 10, 2021 19:30 | November 10, 2021 21:15 | 1h 45m | 2,609 | 653 |
| 2 | March 14, 2021 08:45 | March 15, 2021 04:00 | 19h 15m | 2,449 | 2,438 |
| 3 | December 7, 2021 18:30 | December 7, 2021 23:00 | 4h 30m | 1,941 | 1,944 |
| 4 | May 11, 2021 00:15 | May 11, 2021 08:15 | 8h | 1,296 | 1,550 |
| 5 | October 19, 2021 19:15 | October 21, 2021 02:00 | 1d 6h | 1,295 | 11K |
| 6 | August 6, 2021 16:15 | August 7, 2021 12:45 | 20h 30m | 544 | 2,063 |
| 7 | January 13, 2021 15:45 | January 15, 2021 11:45 | 1d 20h | 507 | 5,828 |
| 8 | October 14, 2021 18:30 | October 14, 2021 21:15 | 2h 45m | 413 | 538 |
| 9 | February 12, 2021 00:45 | February 12, 2021 07:45 | 7h | 361 | 1,429 |
| 10 | October 21, 2021 03:15 | October 21, 2021 04:15 | 1h | 272 | 136 |
Outage episodes by size in 2021: 21 reached 100+ customers, 5 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 Converse County reported on EIA Form 861 for 2021, 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 | 2021 | 4.3 hrs | 1.86 | 2.0 hrs | 1.19 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| 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 71% of Wyoming's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 7,624 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. Converse County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Converse County, WY annual power outage report, 2021, 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/2021/wyoming/converse-county