County annual report · FIPS 08031
2017 Denver County, CO Power Outage Report
In 2017, customers in Denver County, CO went without power for an average of 1.4 hours, a total of 543K customer-hours (Colorado average 1.5 hours). That ranks 26th worst of 48 Colorado counties and 1889th of 2,786 nationally.
Compared with CO, the US and 2016
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Denver County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 8, 2017 16:00 | October 13, 2017 03:30 | 4d 11h | 9,426 | 105K |
| 2 | May 31, 2017 14:30 | June 2, 2017 05:30 | 1d 15h | 9,118 | 35K |
| 3 | October 30, 2017 18:30 | October 31, 2017 07:30 | 13h | 7,722 | 3,847 |
| 4 | September 23, 2017 22:45 | September 26, 2017 04:45 | 2d 6h | 5,964 | 27K |
| 5 | November 21, 2017 16:00 | November 24, 2017 15:00 | 2d 23h | 5,933 | 16K |
| 6 | August 23, 2017 09:00 | August 23, 2017 22:45 | 13h 45m | 4,702 | 9,187 |
| 7 | April 3, 2017 02:45 | April 3, 2017 06:00 | 3h 15m | 4,658 | 7,535 |
| 8 | June 22, 2017 12:45 | June 23, 2017 08:00 | 19h 15m | 4,498 | 2,648 |
| 9 | July 24, 2017 22:15 | July 25, 2017 18:45 | 20h 30m | 4,252 | 16K |
| 10 | October 20, 2017 18:15 | October 21, 2017 04:00 | 9h 45m | 4,049 | 2,116 |
Outage episodes by size in 2017: 181 reached 100+ customers, 56 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 Denver County reported on EIA Form 861 for 2017, 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 | 2017 | 1.8 hrs | 1.01 | 84 min | 0.92 |
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 2017; 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, 2017, 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/2017/colorado/denver-county