County annual report · FIPS 08023
2025 Costilla County, CO Power Outage Report
In 2025, customers in Costilla County, CO went without power for an average of 8.4 hours, a total of 18K customer-hours (Colorado average 4.6 hours). That ranks 11th worst of 52 Colorado counties and 968th 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 Costilla 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 | June 20, 2025 13:15 | June 20, 2025 18:30 | 5h 15m | 1,099 | 4,402 |
| 2 | August 7, 2025 12:45 | August 7, 2025 20:00 | 7h 15m | 945 | 2,136 |
| 3 | October 4, 2025 15:15 | October 5, 2025 00:15 | 9h | 848 | 698 |
| 4 | August 8, 2025 02:30 | August 8, 2025 05:15 | 2h 45m | 471 | 1,269 |
| 5 | February 6, 2025 16:15 | February 7, 2025 01:45 | 9h 30m | 463 | 1,171 |
| 6 | June 30, 2025 14:00 | June 30, 2025 16:00 | 2h | 458 | 914 |
| 7 | March 4, 2025 15:45 | March 4, 2025 22:15 | 6h 30m | 447 | 2,290 |
| 8 | June 25, 2025 20:15 | June 25, 2025 20:30 | 15m | 203 | 51 |
| 9 | January 31, 2025 17:15 | January 31, 2025 21:15 | 4h | 198 | 68 |
| 10 | February 3, 2025 16:30 | February 3, 2025 22:30 | 6h | 198 | 600 |
Outage episodes by size in 2025: 16 reached 100+ customers, 1 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 Costilla 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 |
| San Luis Valley R E C, Inc | 2024 | 4.9 hrs | 1.78 | 1.6 hrs | 0.89 |
| San Isabel 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 n/a of Colorado's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,089 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. Costilla County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Costilla 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/costilla-county