County annual report · FIPS 08017
2019 Cheyenne County, CO Power Outage Report
In 2019, customers in Cheyenne County, CO went without power for an average of 46.5 hours, a total of 66K customer-hours (Colorado average 3.3 hours). That ranks 1st worst of 55 Colorado counties and 63rd 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 Cheyenne 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 | December 29, 2019 00:15 | December 31, 2019 00:15 | 2d | 1,387 | 9,878 |
| 2 | July 27, 2019 19:00 | August 6, 2019 08:15 | 9d 13h | 981 | 4,612 |
| 3 | June 29, 2019 15:45 | July 1, 2019 14:15 | 1d 22h | 978 | 1,069 |
| 4 | June 22, 2019 02:00 | June 25, 2019 18:30 | 3d 16h | 739 | 3,101 |
| 5 | March 9, 2019 06:15 | March 9, 2019 15:15 | 9h | 308 | 316 |
| 6 | March 9, 2019 16:45 | March 9, 2019 19:00 | 2h 15m | 308 | 693 |
| 7 | March 13, 2019 22:00 | March 14, 2019 06:30 | 8h 30m | 289 | 551 |
| 8 | March 14, 2019 16:45 | March 20, 2019 14:15 | 5d 21h | 289 | 41K |
| 9 | July 10, 2019 11:00 | July 10, 2019 12:45 | 1h 45m | 193 | 338 |
| 10 | March 29, 2019 03:15 | March 29, 2019 06:00 | 2h 45m | 176 | 484 |
Outage episodes by size in 2019: 11 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 Cheyenne 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 |
|---|---|---|---|---|---|
| Wheatland Electric Coop, Inc | 2018 | 78 min | 1.29 | 78 min | 1.29 |
| Southeast Colorado Power Assn | - | - | - | - | - |
| K C Electric Association | - | - | - | - | - |
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 ÷ 1,412 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. Cheyenne County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Cheyenne 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/cheyenne-county