County annual report · FIPS 08117
2015 Summit County, CO Power Outage Report
In 2015, customers in Summit County, CO went without power for an average of 4.1 hours, a total of 66K customer-hours (Colorado average 1.2 hours). That ranks 4th worst of 33 Colorado counties and 676th 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 Summit 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 | September 19, 2015 07:30 | September 19, 2015 08:00 | 30m | 10,902 | 4,373 |
| 2 | June 15, 2015 17:00 | June 17, 2015 10:15 | 1d 17h | 3,394 | 954 |
| 3 | June 15, 2015 15:30 | June 15, 2015 16:15 | 45m | 3,393 | 1,697 |
| 4 | July 17, 2015 03:00 | July 17, 2015 03:15 | 15m | 2,857 | 714 |
| 5 | May 17, 2015 16:15 | May 17, 2015 22:45 | 6h 30m | 2,804 | 812 |
| 6 | June 12, 2015 01:30 | June 12, 2015 06:15 | 4h 45m | 2,738 | 6,719 |
| 7 | May 28, 2015 00:00 | May 28, 2015 16:00 | 16h | 1,764 | 26K |
| 8 | September 22, 2015 04:00 | September 22, 2015 08:15 | 4h 15m | 966 | 3,186 |
| 9 | September 22, 2015 01:30 | September 22, 2015 02:15 | 45m | 963 | 609 |
| 10 | May 25, 2015 23:15 | May 26, 2015 16:00 | 16h 45m | 766 | 2,568 |
Outage episodes by size in 2015: 42 reached 100+ customers, 7 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 Summit 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 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
| Mountain Parks Electric, Inc | - | - | - | - | - |
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 ÷ 16,131 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. Summit County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Summit 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/summit-county