County annual report · FIPS 08031
2023 Denver County, CO Power Outage Report
In 2023, customers in Denver County, CO went without power for an average of 2.2 hours, a total of 881K customer-hours (Colorado average 2.1 hours). That ranks 25th worst of 52 Colorado counties and 2213th 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 Denver 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 | April 24, 2023 18:45 | June 11, 2023 12:15 | 47d 17h | 19,020 | 161K |
| 2 | January 2, 2023 14:15 | January 3, 2023 02:15 | 12h | 14,904 | 37K |
| 3 | June 11, 2023 13:45 | September 17, 2023 19:15 | 98d 5h | 12,745 | 347K |
| 4 | March 28, 2023 14:45 | April 24, 2023 15:30 | 27d | 9,746 | 63K |
| 5 | March 10, 2023 08:45 | March 17, 2023 20:45 | 7d 12h | 9,548 | 37K |
| 6 | September 17, 2023 20:15 | October 13, 2023 09:00 | 25d 12h | 9,542 | 75K |
| 7 | December 21, 2023 15:00 | December 22, 2023 03:15 | 12h 15m | 7,974 | 12K |
| 8 | October 19, 2023 14:00 | November 9, 2023 02:30 | 20d 12h | 5,354 | 37K |
| 9 | February 25, 2023 15:15 | February 25, 2023 22:45 | 7h 30m | 5,092 | 7,581 |
| 10 | November 24, 2023 22:45 | November 25, 2023 02:00 | 3h 15m | 4,848 | 6,057 |
Outage episodes by size in 2023: 88 reached 100+ customers, 25 reached 1,000+ customers, 3 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 Denver 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 |
|---|---|---|---|---|---|
| Public Service Co of Colorado | 2023 | 1.9 hrs | 1.02 | 1.7 hrs | 0.98 |
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 ÷ 398,898 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. Denver County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Denver 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/denver-county