County annual report · FIPS 08117
2017 Summit County, CO Power Outage Report
In 2017, customers in Summit County, CO went without power for an average of 9.5 hours, a total of 153K customer-hours (Colorado average 1.5 hours). That ranks 5th worst of 48 Colorado counties and 560th 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 Summit 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 | September 18, 2017 22:45 | October 6, 2017 19:15 | 17d 20h | 13,497 | 71K |
| 2 | July 14, 2017 12:00 | July 14, 2017 16:45 | 4h 45m | 3,373 | 7,703 |
| 3 | September 6, 2017 20:45 | September 7, 2017 01:30 | 4h 45m | 3,373 | 4,316 |
| 4 | December 24, 2017 01:00 | December 24, 2017 22:45 | 21h 45m | 2,410 | 31K |
| 5 | November 30, 2017 23:15 | December 1, 2017 05:00 | 5h 45m | 2,142 | 2,620 |
| 6 | October 26, 2017 14:30 | October 26, 2017 15:00 | 30m | 2,137 | 1,068 |
| 7 | August 31, 2017 15:00 | August 31, 2017 17:45 | 2h 45m | 1,411 | 354 |
| 8 | May 18, 2017 23:45 | May 19, 2017 07:15 | 7h 30m | 1,108 | 5,469 |
| 9 | March 29, 2017 04:15 | March 29, 2017 10:00 | 5h 45m | 964 | 3,156 |
| 10 | July 8, 2017 00:15 | July 8, 2017 03:30 | 3h 15m | 964 | 248 |
Outage episodes by size in 2017: 38 reached 100+ customers, 8 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 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 |
| 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 2017; 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, 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/summit-county