County annual report · FIPS 08027
2020 Custer County, CO Power Outage Report
In 2020, customers in Custer County, CO went without power for an average of 0.4 hours, a total of 1,069 customer-hours (Colorado average 2.2 hours). That ranks 48th worst of 57 Colorado counties and 2857th 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 Custer 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 | August 19, 2020 19:15 | August 19, 2020 19:45 | 30m | 1,554 | 777 |
| 2 | March 22, 2020 20:15 | March 22, 2020 22:15 | 2h | 26 | 41 |
| 3 | July 14, 2020 10:00 | July 14, 2020 10:30 | 30m | 17 | 9 |
| 4 | November 25, 2020 19:30 | November 25, 2020 22:15 | 2h 45m | 12 | 33 |
| 5 | November 28, 2020 15:45 | November 28, 2020 17:30 | 1h 45m | 12 | 18 |
| 6 | November 30, 2020 17:15 | November 30, 2020 19:00 | 1h 45m | 12 | 21 |
| 7 | May 20, 2020 21:00 | May 21, 2020 01:00 | 4h | 11 | 42 |
| 8 | August 27, 2020 23:30 | August 28, 2020 09:00 | 9h 30m | 11 | 82 |
| 9 | August 28, 2020 23:15 | August 29, 2020 02:45 | 3h 30m | 11 | 39 |
| 10 | August 20, 2020 16:45 | August 20, 2020 17:00 | 15m | 3 | 1 |
Outage episodes by size in 2020: 1 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 Custer 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 |
| Black Hills Colorado Electric, LLC | 2020 | 74 min | 1.87 | 65 min | 1.72 |
| 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 84% of Colorado's customers in 2020; 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, 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/custer-county