County annual report · FIPS 08017
2023 Cheyenne County, CO Power Outage Report
In 2023, customers in Cheyenne County, CO went without power for an average of 5.7 hours, a total of 8,040 customer-hours (Colorado average 2.1 hours). That ranks 10th worst of 52 Colorado counties and 1339th 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 Cheyenne 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 8, 2023 18:30 | August 8, 2023 21:30 | 3h | 583 | 366 |
| 2 | May 31, 2023 22:00 | May 31, 2023 22:45 | 45m | 538 | 404 |
| 3 | December 24, 2023 09:45 | January 1, 2024 00:00 | 7d 14h | 510 | 745 |
| 4 | June 28, 2023 22:00 | June 29, 2023 15:45 | 17h 45m | 509 | 272 |
| 5 | July 26, 2023 15:30 | July 26, 2023 19:45 | 4h 15m | 430 | 1,716 |
| 6 | April 23, 2023 04:15 | April 23, 2023 06:30 | 2h 15m | 368 | 462 |
| 7 | April 19, 2023 21:30 | April 19, 2023 22:15 | 45m | 264 | 133 |
| 8 | January 19, 2023 07:15 | January 19, 2023 15:00 | 7h 45m | 156 | 65 |
| 9 | January 19, 2023 00:30 | January 19, 2023 03:45 | 3h 15m | 72 | 114 |
| 10 | May 25, 2023 15:00 | May 30, 2023 18:00 | 5d 3h | 65 | 219 |
Outage episodes by size in 2023: 8 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 Cheyenne 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 |
|---|---|---|---|---|---|
| Wheatland Electric Coop, Inc | 2023 | 6.0 hrs | 1.26 | 1.7 hrs | 0.86 |
| Southeast Colorado Power Assn | 2023 | 12.5 hrs | - | 12.0 hrs | - |
| 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 n/a of Colorado's customers in 2023; 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, 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/cheyenne-county