County annual report · FIPS 08003
2020 Alamosa County, CO Power Outage Report
In 2020, customers in Alamosa County, CO went without power for an average of 3.2 hours, a total of 30K customer-hours (Colorado average 2.2 hours). That ranks 14th worst of 57 Colorado counties and 1802nd of 3,019 nationally.
Compared with CO, the US and 2019
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Alamosa County, 2020
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 8, 2020 21:00 | September 11, 2020 00:30 | 2d 3h | 6,108 | 18K |
| 2 | September 21, 2020 17:00 | September 21, 2020 18:15 | 1h 15m | 557 | 696 |
| 3 | September 22, 2020 14:15 | September 22, 2020 14:45 | 30m | 557 | 279 |
| 4 | August 17, 2020 16:45 | August 17, 2020 17:45 | 1h | 416 | 337 |
| 5 | October 26, 2020 01:00 | October 26, 2020 03:00 | 2h | 365 | 650 |
| 6 | October 22, 2020 15:30 | October 22, 2020 16:15 | 45m | 363 | 250 |
| 7 | December 3, 2020 00:15 | December 3, 2020 02:00 | 1h 45m | 323 | 499 |
| 8 | December 11, 2020 06:15 | December 11, 2020 16:45 | 10h 30m | 323 | 2,224 |
| 9 | September 26, 2020 13:45 | September 26, 2020 20:15 | 6h 30m | 259 | 732 |
| 10 | August 10, 2020 02:00 | August 10, 2020 03:30 | 1h 30m | 177 | 210 |
Outage episodes by size in 2020: 16 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 Alamosa County reported on EIA Form 861 for 2020, 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 | 2020 | 2.3 hrs | 1.03 | 83 min | 0.85 |
| San Luis Valley R E C, Inc | 2020 | 4.8 hrs | 0.13 | 1.6 hrs | 0.07 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 84% of Colorado's customers in 2020; 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, 2020, 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/2020/colorado/alamosa-county