County annual report · FIPS 08059
2022 Jefferson County, CO Power Outage Report
In 2022, customers in Jefferson County, CO went without power for an average of 6.1 hours, a total of 1.7M customer-hours (Colorado average 2.6 hours). That ranks 8th worst of 52 Colorado counties and 1195th 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 Jefferson 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 10:45 | May 26, 2022 11:45 | 6d 1h | 57,450 | 913K |
| 2 | December 29, 2022 02:15 | January 1, 2023 00:00 | 2d 21h | 21,138 | 50K |
| 3 | July 26, 2022 12:15 | July 30, 2022 00:30 | 3d 12h | 8,501 | 34K |
| 4 | June 12, 2022 16:30 | June 15, 2022 12:30 | 2d 20h | 7,475 | 19K |
| 5 | August 2, 2022 12:45 | August 6, 2022 05:15 | 3d 16h | 6,276 | 17K |
| 6 | January 27, 2022 16:45 | January 28, 2022 00:45 | 8h | 5,937 | 15K |
| 7 | February 16, 2022 22:00 | February 17, 2022 01:45 | 3h 45m | 5,773 | 7,217 |
| 8 | March 16, 2022 13:45 | March 19, 2022 03:30 | 2d 13h | 5,063 | 20K |
| 9 | May 31, 2022 13:30 | June 9, 2022 06:45 | 8d 17h | 4,997 | 44K |
| 10 | August 1, 2022 12:00 | August 2, 2022 06:00 | 18h | 4,617 | 9,180 |
Outage episodes by size in 2022: 225 reached 100+ customers, 68 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 Jefferson 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 |
| United Power, Inc | 2022 | 61 min | 0.74 | 61 min | 0.74 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 ÷ 278,207 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. Jefferson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Jefferson 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/jefferson-county