County annual report · FIPS 08003
2023 Alamosa County, CO Power Outage Report
In 2023, customers in Alamosa County, CO went without power for an average of 2.9 hours, a total of 27K customer-hours (Colorado average 2.1 hours). That ranks 20th worst of 52 Colorado counties and 1979th 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 Alamosa 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 | December 21, 2023 15:30 | December 21, 2023 17:00 | 1h 30m | 11,390 | 8,868 |
| 2 | December 16, 2023 22:15 | December 16, 2023 23:15 | 1h | 11,388 | 2,849 |
| 3 | June 11, 2023 18:45 | June 11, 2023 21:00 | 2h 15m | 1,526 | 2,545 |
| 4 | August 1, 2023 23:30 | August 2, 2023 01:00 | 1h 30m | 848 | 305 |
| 5 | July 28, 2023 17:45 | July 28, 2023 19:15 | 1h 30m | 814 | 611 |
| 6 | May 31, 2023 13:00 | May 31, 2023 15:15 | 2h 15m | 789 | 1,217 |
| 7 | January 11, 2023 18:15 | January 11, 2023 23:15 | 5h | 725 | 1,996 |
| 8 | August 26, 2023 02:15 | August 26, 2023 09:00 | 6h 45m | 452 | 1,528 |
| 9 | August 13, 2023 12:15 | August 13, 2023 16:15 | 4h | 407 | 519 |
| 10 | June 22, 2023 19:45 | June 22, 2023 21:45 | 2h | 260 | 369 |
Outage episodes by size in 2023: 19 reached 100+ customers, 3 reached 1,000+ customers, 2 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 Alamosa 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 |
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 ÷ 9,288 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. Alamosa County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Alamosa 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/alamosa-county