County annual report · FIPS 08003
2015 Alamosa County, CO Power Outage Report
In 2015, customers in Alamosa County, CO went without power for an average of 0.4 hours, a total of 3,487 customer-hours (Colorado average 1.2 hours). That ranks 29th worst of 33 Colorado counties and 2140th of 2,484 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Alamosa County, 2015
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 19, 2015 14:00 | September 19, 2015 21:45 | 7h 45m | 260 | 1,802 |
| 2 | July 20, 2015 21:15 | July 20, 2015 22:15 | 1h | 244 | 183 |
| 3 | September 23, 2015 22:00 | September 24, 2015 01:30 | 3h 30m | 169 | 297 |
| 4 | December 6, 2015 03:30 | December 6, 2015 05:30 | 2h | 167 | 259 |
| 5 | July 21, 2015 00:30 | July 21, 2015 01:30 | 1h | 84 | 63 |
| 6 | October 31, 2015 19:00 | October 31, 2015 21:00 | 2h | 82 | 164 |
| 7 | October 16, 2015 19:45 | October 16, 2015 20:30 | 45m | 77 | 48 |
| 8 | June 24, 2015 18:00 | June 24, 2015 20:00 | 2h | 35 | 62 |
| 9 | July 8, 2015 15:45 | July 8, 2015 16:00 | 15m | 35 | 9 |
| 10 | September 19, 2015 23:00 | September 20, 2015 02:15 | 3h 15m | 29 | 93 |
Outage episodes by size in 2015: 4 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 Alamosa County reported on EIA Form 861 for 2015, 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 | 2015 | 1.6 hrs | 0.98 | 88 min | 0.95 |
| San Luis Valley R E C, Inc | 2015 | 1.8 hrs | 0.75 | 78 min | 0.66 |
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 2015; 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, 2015, 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/2015/colorado/alamosa-county