County annual report · FIPS 08031
2020 Denver County, CO Power Outage Report
In 2020, customers in Denver County, CO went without power for an average of 2.8 hours, a total of 1.1M customer-hours (Colorado average 2.2 hours). That ranks 23rd worst of 57 Colorado counties and 1947th of 3,019 nationally.
Compared with CO, the US and 2019
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Denver County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 6, 2020 13:30 | July 1, 2020 04:00 | 24d 14h | 40,714 | 489K |
| 2 | February 24, 2020 14:00 | March 4, 2020 00:15 | 8d 10h | 9,445 | 22K |
| 3 | October 11, 2020 20:15 | October 14, 2020 05:15 | 2d 9h | 8,696 | 38K |
| 4 | September 22, 2020 20:45 | September 23, 2020 03:15 | 6h 30m | 8,401 | 11K |
| 5 | July 10, 2020 10:30 | September 3, 2020 06:00 | 54d 19h | 6,126 | 194K |
| 6 | May 13, 2020 11:30 | May 14, 2020 08:30 | 21h | 5,588 | 16K |
| 7 | November 26, 2020 20:45 | November 26, 2020 23:15 | 2h 30m | 5,510 | 4,265 |
| 8 | November 8, 2020 13:30 | November 9, 2020 06:45 | 17h 15m | 5,239 | 12K |
| 9 | December 8, 2020 13:30 | December 8, 2020 18:45 | 5h 15m | 5,012 | 1,653 |
| 10 | December 4, 2020 15:30 | December 4, 2020 22:45 | 7h 15m | 4,746 | 5,014 |
Outage episodes by size in 2020: 149 reached 100+ customers, 45 reached 1,000+ customers, 1 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 2020, 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 | 2020 | 2.3 hrs | 1.03 | 83 min | 0.85 |
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 2020; 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, 2020, 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/2020/colorado/denver-county