County annual report · FIPS 08043
2025 Fremont County, CO Power Outage Report
In 2025, customers in Fremont County, CO went without power for an average of 1.6 hours, a total of 30K customer-hours (Colorado average 4.6 hours). That ranks 37th worst of 52 Colorado counties and 2573rd of 3,000 nationally.
Compared with CO, the US and 2024
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Fremont County, 2025
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 28, 2025 21:15 | October 28, 2025 21:30 | 15m | 5,380 | 1,345 |
| 2 | August 26, 2025 22:15 | August 27, 2025 09:00 | 10h 45m | 2,128 | 5,665 |
| 3 | May 4, 2025 21:30 | May 5, 2025 00:30 | 3h | 2,015 | 4,031 |
| 4 | October 23, 2025 20:00 | October 23, 2025 20:15 | 15m | 1,842 | 461 |
| 5 | December 18, 2025 01:30 | December 18, 2025 05:45 | 4h 15m | 1,438 | 1,812 |
| 6 | July 17, 2025 22:45 | July 18, 2025 00:00 | 1h 15m | 1,331 | 334 |
| 7 | January 19, 2025 15:00 | January 19, 2025 21:45 | 6h 45m | 1,318 | 1,782 |
| 8 | May 29, 2025 14:45 | May 29, 2025 19:15 | 4h 30m | 1,159 | 2,320 |
| 9 | July 27, 2025 23:30 | July 28, 2025 01:15 | 1h 45m | 925 | 1,283 |
| 10 | December 11, 2025 20:30 | December 12, 2025 02:30 | 6h | 525 | 1,071 |
Outage episodes by size in 2025: 21 reached 100+ customers, 8 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 2025, 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2024 | 5.9 hrs | 1.68 | 2.6 hrs | 1.36 |
| CORE Electric Cooperative | 2024 | 3.5 hrs | 0.93 | 74 min | 0.75 |
| Black Hills Colorado Electric, LLC | 2024 | 5.4 hrs | 2.39 | 1.7 hrs | 1.42 |
| Sangre De Cristo Elec Assn Inc | 2018 | 2.2 hrs | 1.23 | 2.2 hrs | 1.23 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| San Isabel Electric Assn, Inc | - | - | - | - | - |
| Black Hills Energy | - | - | - | - | - |
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 Colorado's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,018 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 2015–2025.
Cite this report
MassOutage (massoutage.com), Fremont County, CO annual power outage report, 2025, 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/2025/colorado/fremont-county