County annual report · FIPS 08005
2022 Arapahoe County, CO Power Outage Report
In 2022, customers in Arapahoe County, CO went without power for an average of 2.9 hours, a total of 944K customer-hours (Colorado average 2.6 hours). That ranks 23rd worst of 52 Colorado counties and 1980th of 2,976 nationally.
Compared with CO, the US and 2021
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Arapahoe County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 20, 2022 18:45 | May 25, 2022 02:15 | 4d 7h | 19,343 | 393K |
| 2 | October 17, 2022 11:00 | October 17, 2022 18:45 | 7h 45m | 16,650 | 10K |
| 3 | April 15, 2022 13:30 | April 16, 2022 07:00 | 17h 30m | 7,393 | 5,501 |
| 4 | February 11, 2022 15:45 | February 15, 2022 06:15 | 3d 14h | 6,717 | 8,603 |
| 5 | November 26, 2022 22:00 | November 27, 2022 14:00 | 16h | 6,685 | 28K |
| 6 | June 7, 2022 12:30 | June 8, 2022 04:15 | 15h 45m | 6,358 | 1,823 |
| 7 | December 22, 2022 13:00 | December 23, 2022 06:00 | 17h | 6,317 | 5,592 |
| 8 | July 9, 2022 11:30 | July 12, 2022 00:15 | 2d 12h | 6,132 | 48K |
| 9 | April 5, 2022 22:45 | April 7, 2022 04:30 | 1d 5h | 6,111 | 12K |
| 10 | January 25, 2022 14:30 | January 25, 2022 22:00 | 7h 30m | 5,785 | 5,922 |
Outage episodes by size in 2022: 195 reached 100+ customers, 75 reached 1,000+ customers, 2 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 Arapahoe County reported on EIA Form 861 for 2022, 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 | 2022 | 2.9 hrs | 1.17 | 1.9 hrs | 1.04 |
| CORE Electric Cooperative | 2022 | 2.3 hrs | 1.06 | 1.7 hrs | 0.92 |
| Mountain View Elec Assn, Inc | 2022 | 65 min | 0.78 | 47 min | 0.68 |
| Morgan County Rural Elec Assn | - | - | - | - | - |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 323,113 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. Arapahoe County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Arapahoe County, CO annual power outage report, 2022, 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/2022/colorado/arapahoe-county