County annual report · FIPS 08027
2023 Custer County, CO Power Outage Report
In 2023, customers in Custer County, CO went without power for an average of 0.1 hours, a total of 381 customer-hours (Colorado average 2.1 hours). That ranks 47th worst of 52 Colorado counties and 2910th 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 Custer 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 | August 1, 2023 11:45 | August 1, 2023 15:30 | 3h 45m | 57 | 214 |
| 2 | October 23, 2023 13:45 | October 23, 2023 15:45 | 2h | 33 | 56 |
| 3 | May 17, 2023 00:45 | May 17, 2023 04:15 | 3h 30m | 23 | 81 |
| 4 | May 11, 2023 16:15 | May 11, 2023 19:00 | 2h 45m | 11 | 21 |
| 5 | January 16, 2023 17:30 | January 16, 2023 20:15 | 2h 45m | 1 | 3 |
| 6 | April 19, 2023 17:30 | April 19, 2023 18:00 | 30m | 1 | 1 |
| 7 | June 15, 2023 18:45 | June 15, 2023 19:45 | 1h | 1 | 1 |
| 8 | June 29, 2023 22:00 | June 29, 2023 22:15 | 15m | 1 | 0 |
| 9 | July 18, 2023 16:00 | July 18, 2023 16:45 | 45m | 1 | 1 |
| 10 | July 31, 2023 16:45 | July 31, 2023 20:00 | 3h 15m | 1 | 3 |
Outage episodes by size in 2023: 0 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 Custer 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 |
| Black Hills Colorado Electric, LLC | 2023 | 1.8 hrs | 1.55 | 87 min | 1.30 |
| Sangre De Cristo Elec Assn Inc | 2018 | 2.2 hrs | 1.23 | 2.2 hrs | 1.23 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| 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 n/a of Colorado's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 2,930 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. Custer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Custer 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/custer-county