County annual report · FIPS 08023
2015 Costilla County, CO Power Outage Report
In 2015, customers in Costilla County, CO went without power for an average of 1.0 hours, a total of 2,129 customer-hours (Colorado average 1.2 hours). That ranks 20th worst of 33 Colorado counties and 1750th of 2,484 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Costilla County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 15, 2015 22:15 | September 15, 2015 23:00 | 45m | 454 | 341 |
| 2 | August 11, 2015 09:30 | August 11, 2015 21:30 | 12h | 126 | 1,229 |
| 3 | December 9, 2015 16:15 | December 9, 2015 20:00 | 3h 45m | 66 | 231 |
| 4 | May 19, 2015 16:15 | May 19, 2015 23:15 | 7h | 33 | 113 |
| 5 | September 30, 2015 22:15 | October 1, 2015 00:30 | 2h 15m | 16 | 15 |
| 6 | November 3, 2015 16:30 | November 3, 2015 19:15 | 2h 45m | 13 | 36 |
| 7 | July 16, 2015 18:15 | July 16, 2015 18:45 | 30m | 12 | 6 |
| 8 | August 22, 2015 19:15 | August 22, 2015 19:30 | 15m | 12 | 3 |
| 9 | September 21, 2015 17:30 | September 21, 2015 17:45 | 15m | 12 | 3 |
| 10 | June 12, 2015 14:15 | June 12, 2015 15:00 | 45m | 9 | 3 |
Outage episodes by size in 2015: 2 reached 100+ customers, 0 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 2015, 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 | 2015 | 1.6 hrs | 0.98 | 88 min | 0.95 |
| San Luis Valley R E C, Inc | 2015 | 1.8 hrs | 0.75 | 78 min | 0.66 |
| 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 2015; 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, 2015, 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/2015/colorado/costilla-county