County annual report · FIPS 08023
2023 Costilla County, CO Power Outage Report
In 2023, customers in Costilla County, CO went without power for an average of 12.9 hours, a total of 27K customer-hours (Colorado average 2.1 hours). That ranks 5th worst of 52 Colorado counties and 669th of 2,977 nationally.
Compared with CO, the US and 2022
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Costilla County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 21, 2023 12:15 | May 21, 2023 16:30 | 4h 15m | 3,824 | 14K |
| 2 | July 21, 2023 19:30 | July 21, 2023 21:45 | 2h 15m | 1,856 | 1,515 |
| 3 | September 11, 2023 15:45 | September 11, 2023 18:00 | 2h 15m | 968 | 1,444 |
| 4 | May 16, 2023 04:15 | May 16, 2023 12:00 | 7h 45m | 928 | 4,643 |
| 5 | July 26, 2023 16:45 | July 27, 2023 18:00 | 1d 1h | 900 | 2,827 |
| 6 | August 7, 2023 13:00 | August 7, 2023 15:30 | 2h 30m | 518 | 285 |
| 7 | June 27, 2023 14:45 | June 27, 2023 18:00 | 3h 15m | 394 | 889 |
| 8 | August 24, 2023 20:00 | August 24, 2023 22:30 | 2h 30m | 186 | 235 |
| 9 | August 29, 2023 13:45 | August 29, 2023 16:00 | 2h 15m | 93 | 140 |
| 10 | April 19, 2023 01:15 | April 19, 2023 02:45 | 1h 30m | 56 | 63 |
Outage episodes by size in 2023: 8 reached 100+ customers, 2 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 2023, 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 | 2023 | 1.9 hrs | 1.02 | 1.7 hrs | 0.98 |
| San Luis Valley R E C, Inc | 2023 | 2.7 hrs | 0.10 | 1.7 hrs | 0.08 |
| 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 2023; 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, 2023, 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/2023/colorado/costilla-county