County annual report · FIPS 08117
2025 Summit County, CO Power Outage Report
In 2025, customers in Summit County, CO went without power for an average of 14.9 hours, a total of 240K customer-hours (Colorado average 4.6 hours). That ranks 8th worst of 52 Colorado counties and 509th of 3,000 nationally.
Compared with CO, the US and 2024
Coverage line is EAGLE-I's share of Colorado customers tracked each year.
Biggest outages in Summit County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 21, 2025 15:15 | January 22, 2025 03:15 | 12h | 6,654 | 14K |
| 2 | October 29, 2025 15:15 | October 29, 2025 22:15 | 7h | 4,830 | 8,435 |
| 3 | October 3, 2025 11:45 | October 4, 2025 01:00 | 13h 15m | 4,660 | 11K |
| 4 | August 14, 2025 16:15 | August 14, 2025 22:15 | 6h | 4,080 | 3,464 |
| 5 | August 7, 2025 00:00 | August 7, 2025 03:00 | 3h | 4,048 | 4,304 |
| 6 | July 15, 2025 05:00 | July 15, 2025 15:30 | 10h 30m | 4,047 | 6,607 |
| 7 | December 17, 2025 22:15 | December 21, 2025 01:30 | 3d 3h | 4,017 | 76K |
| 8 | March 26, 2025 13:30 | March 26, 2025 20:30 | 7h | 3,695 | 2,509 |
| 9 | October 23, 2025 14:45 | October 24, 2025 11:30 | 20h 45m | 3,075 | 9,044 |
| 10 | August 8, 2025 16:00 | August 8, 2025 21:15 | 5h 15m | 2,658 | 1,558 |
Outage episodes by size in 2025: 78 reached 100+ customers, 25 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 Summit County reported on EIA Form 861 for 2025, 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 | 2024 | 5.9 hrs | 1.68 | 2.6 hrs | 1.36 |
| Mountain Parks Electric, Inc | 2024 | 2.5 hrs | 1.76 | 85 min | 1.13 |
| WAPA-- Western Area Power Administration | - | - | - | - | - |
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 2025; 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, 2025, 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/2025/colorado/summit-county