County annual report · FIPS 08031
2015 Denver County, CO Power Outage Report
In 2015, customers in Denver County, CO went without power for an average of 1.3 hours, a total of 515K customer-hours (Colorado average 1.2 hours). That ranks 15th worst of 33 Colorado counties and 1600th of 2,484 nationally.
Compared with CO, the US
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Denver County, 2015
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 4, 2015 23:45 | June 6, 2015 14:45 | 1d 15h | 9,377 | 66K |
| 2 | July 13, 2015 20:00 | July 15, 2015 12:45 | 1d 16h | 8,534 | 4,982 |
| 3 | August 10, 2015 20:00 | August 17, 2015 21:15 | 7d 1h | 8,130 | 31K |
| 4 | November 6, 2015 12:00 | November 7, 2015 09:00 | 21h | 7,898 | 8,706 |
| 5 | July 28, 2015 21:30 | July 29, 2015 17:15 | 19h 45m | 7,282 | 14K |
| 6 | June 24, 2015 00:30 | June 25, 2015 17:00 | 1d 16h | 6,292 | 31K |
| 7 | September 6, 2015 19:15 | September 7, 2015 17:00 | 21h 45m | 5,396 | 16K |
| 8 | May 8, 2015 15:30 | May 11, 2015 13:15 | 2d 21h | 5,069 | 34K |
| 9 | June 18, 2015 17:15 | June 18, 2015 18:30 | 1h 15m | 4,459 | 1,116 |
| 10 | August 3, 2015 04:30 | August 4, 2015 17:45 | 1d 13h | 4,365 | 7,354 |
Outage episodes by size in 2015: 156 reached 100+ customers, 42 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 2015, 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 | 2015 | 1.6 hrs | 0.98 | 88 min | 0.95 |
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 2015; 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, 2015, 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/2015/colorado/denver-county