County annual report · FIPS 56013
2020 Fremont County, WY Power Outage Report
In 2020, customers in Fremont County, WY went without power for an average of 0.9 hours, a total of 25K customer-hours (Wyoming average 3.4 hours). That ranks 20th worst of 22 Wyoming counties and 2684th of 3,019 nationally.
Compared with WY, the US and 2019
Coverage line is EAGLE-I's share of Wyoming customers tracked each year.
Biggest outages in Fremont County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 20, 2020 21:45 | August 20, 2020 23:00 | 1h 15m | 5,264 | 1,322 |
| 2 | June 11, 2020 13:15 | June 11, 2020 15:45 | 2h 30m | 3,511 | 5,055 |
| 3 | September 8, 2020 01:30 | September 10, 2020 15:30 | 2d 14h | 2,880 | 8,770 |
| 4 | April 27, 2020 15:15 | April 27, 2020 22:30 | 7h 15m | 1,282 | 336 |
| 5 | February 2, 2020 21:15 | February 3, 2020 02:15 | 5h | 590 | 237 |
| 6 | November 23, 2020 18:30 | November 23, 2020 22:45 | 4h 15m | 298 | 1,134 |
| 7 | August 8, 2020 22:15 | August 9, 2020 05:15 | 7h | 248 | 563 |
| 8 | May 25, 2020 18:00 | May 25, 2020 18:45 | 45m | 220 | 60 |
| 9 | November 2, 2020 22:30 | November 3, 2020 00:45 | 2h 15m | 218 | 311 |
| 10 | February 24, 2020 20:45 | February 24, 2020 22:30 | 1h 45m | 207 | 61 |
Outage episodes by size in 2020: 18 reached 100+ customers, 4 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 2020, 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 | 2020 | 6.8 hrs | 1.88 | 2.0 hrs | 1.22 |
| 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 71% of Wyoming's customers in 2020; 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, 2020, 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/2020/wyoming/fremont-county