County annual report · FIPS 08023
2018 Costilla County, CO Power Outage Report
In 2018, customers in Costilla County, CO went without power for an average of 3.3 hours, a total of 6,908 customer-hours (Colorado average 1.6 hours). That ranks 8th worst of 49 Colorado counties and 1408th of 2,798 nationally.
Compared with CO, the US and 2017
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Costilla County, 2018
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 19, 2018 05:15 | October 19, 2018 05:30 | 15m | 902 | 226 |
| 2 | May 22, 2018 00:45 | May 22, 2018 03:45 | 3h | 792 | 2,375 |
| 3 | November 10, 2018 15:15 | November 10, 2018 17:00 | 1h 45m | 693 | 521 |
| 4 | November 11, 2018 19:30 | November 11, 2018 20:15 | 45m | 350 | 91 |
| 5 | June 29, 2018 22:15 | June 30, 2018 16:45 | 18h 30m | 134 | 1,639 |
| 6 | June 23, 2018 22:15 | June 24, 2018 00:30 | 2h 15m | 121 | 151 |
| 7 | April 17, 2018 20:00 | April 18, 2018 22:45 | 1d 2h | 100 | 513 |
| 8 | July 1, 2018 07:45 | July 1, 2018 16:30 | 8h 45m | 88 | 714 |
| 9 | May 3, 2018 20:15 | May 4, 2018 01:15 | 5h | 49 | 228 |
| 10 | August 27, 2018 15:30 | August 27, 2018 18:15 | 2h 45m | 47 | 126 |
Outage episodes by size in 2018: 7 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 2018, 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 | 2018 | 1.9 hrs | 1.02 | 1.6 hrs | 0.98 |
| San Luis Valley R E C, Inc | 2018 | 1.9 hrs | 0.93 | 77 min | 0.60 |
| 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 88% of Colorado's customers in 2018; 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, 2018, 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/2018/colorado/costilla-county