County annual report · FIPS 08003
2019 Alamosa County, CO Power Outage Report
In 2019, customers in Alamosa County, CO went without power for an average of 1.5 hours, a total of 14K customer-hours (Colorado average 3.3 hours). That ranks 33rd worst of 55 Colorado counties and 2299th of 2,945 nationally.
Compared with CO, the US and 2018
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Alamosa County, 2019
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 27, 2019 00:00 | September 27, 2019 00:15 | 15m | 5,439 | 1,360 |
| 2 | September 25, 2019 16:00 | September 25, 2019 16:30 | 30m | 3,283 | 1,642 |
| 3 | October 2, 2019 15:30 | October 2, 2019 16:30 | 1h | 3,282 | 1,360 |
| 4 | September 26, 2019 16:15 | September 26, 2019 16:30 | 15m | 2,157 | 539 |
| 5 | August 8, 2019 23:45 | August 9, 2019 03:00 | 3h 15m | 1,040 | 1,863 |
| 6 | December 27, 2019 16:15 | December 27, 2019 17:15 | 1h | 413 | 141 |
| 7 | October 31, 2019 19:30 | October 31, 2019 20:45 | 1h 15m | 277 | 72 |
| 8 | February 28, 2019 17:30 | February 28, 2019 22:30 | 5h | 238 | 411 |
| 9 | January 2, 2019 00:30 | January 2, 2019 03:30 | 3h | 228 | 67 |
| 10 | March 12, 2019 12:45 | March 13, 2019 02:45 | 14h | 195 | 233 |
Outage episodes by size in 2019: 17 reached 100+ customers, 5 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 2019, 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 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Colorado's customers in 2019; 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, 2019, 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/2019/colorado/alamosa-county