County annual report · FIPS 08023
2017 Costilla County, CO Power Outage Report
In 2017, customers in Costilla County, CO went without power for an average of 11.9 hours, a total of 25K customer-hours (Colorado average 1.5 hours). That ranks 1st worst of 48 Colorado counties and 457th of 2,786 nationally.
Compared with CO, the US and 2016
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Costilla County, 2017
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 31, 2017 20:15 | June 1, 2017 02:30 | 6h 15m | 1,560 | 9,750 |
| 2 | December 17, 2017 16:00 | December 17, 2017 22:30 | 6h 30m | 785 | 3,655 |
| 3 | August 2, 2017 23:45 | August 3, 2017 04:45 | 5h | 355 | 1,743 |
| 4 | May 11, 2017 03:00 | May 12, 2017 06:00 | 1d 3h | 350 | 5,865 |
| 5 | November 30, 2017 14:30 | November 30, 2017 20:45 | 6h 15m | 345 | 496 |
| 6 | July 26, 2017 15:15 | July 26, 2017 18:30 | 3h 15m | 336 | 935 |
| 7 | September 27, 2017 16:15 | September 27, 2017 19:15 | 3h | 295 | 592 |
| 8 | October 12, 2017 14:45 | October 12, 2017 17:30 | 2h 45m | 169 | 381 |
| 9 | September 1, 2017 01:45 | September 1, 2017 07:15 | 5h 30m | 119 | 448 |
| 10 | April 2, 2017 11:30 | April 2, 2017 16:30 | 5h | 116 | 535 |
Outage episodes by size in 2017: 12 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 2017, 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 | 2017 | 1.8 hrs | 1.01 | 84 min | 0.92 |
| San Luis Valley R E C, Inc | 2017 | 3.0 hrs | 1.42 | 2.2 hrs | 1.16 |
| 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 2017; 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, 2017, 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/2017/colorado/costilla-county