County annual report · FIPS 56013
2018 Fremont County, WY Power Outage Report
In 2018, customers in Fremont County, WY went without power for an average of 0.4 hours, a total of 11K customer-hours (Wyoming average 1.2 hours). That ranks 15th worst of 21 Wyoming counties and 2543rd 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 Fremont 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 | November 13, 2018 01:00 | November 13, 2018 03:15 | 2h 15m | 3,560 | 1,818 |
| 2 | December 3, 2018 23:00 | December 4, 2018 02:00 | 3h | 2,803 | 705 |
| 3 | December 12, 2018 19:15 | December 12, 2018 20:30 | 1h 15m | 2,238 | 562 |
| 4 | June 11, 2018 12:45 | June 11, 2018 19:30 | 6h 45m | 594 | 687 |
| 5 | March 26, 2018 06:45 | March 26, 2018 13:45 | 7h | 562 | 1,486 |
| 6 | October 24, 2018 19:30 | October 24, 2018 20:30 | 1h | 401 | 103 |
| 7 | January 30, 2018 22:45 | January 31, 2018 04:30 | 5h 45m | 266 | 490 |
| 8 | September 4, 2018 13:15 | September 4, 2018 18:15 | 5h | 191 | 741 |
| 9 | May 2, 2018 16:15 | May 2, 2018 19:15 | 3h | 181 | 78 |
| 10 | March 14, 2018 13:15 | March 14, 2018 14:00 | 45m | 175 | 103 |
Outage episodes by size in 2018: 11 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 Fremont 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 |
|---|---|---|---|---|---|
| PacifiCorp | 2018 | 3.2 hrs | 1.62 | 2.0 hrs | 1.25 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| High Plains Power Inc | - | - | - | - | - |
| Midvale Irrigation District | - | - | - | - | - |
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 ÷ 26,823 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. Fremont County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Fremont 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/fremont-county