massoutage

County annual report · FIPS 08117

2022 Summit County, CO Power Outage Report

In 2022, customers in Summit County, CO went without power for an average of 6.1 hours, a total of 99K customer-hours (Colorado average 2.6 hours). That ranks 7th worst of 52 Colorado counties and 1187th of 2,976 nationally.

Summary data CSVJSON
Avg hrs / customer
6.1
16,131 customers
Customer-hours out
99K
Peak customers out
7,502
Outages ≥1,000 out
8
0 of 10,000+ · 348 total
Longest outage
3d 1h
began August 27, 2022
Rank in state
7th/52
1187th of 2,976 US

Compared with CO, the US and 2021

Summit County, CO average hours without power per customer compared with state and national averages, 2022Summit County 6.1 hours, Colorado average 2.6 hours, US average 8.3 hours, Summit County, 2021 6.0 hoursSummit CountySummit County6.1hColorado averageColorado average2.6hUS averageUS average8.3hSummit County, 2021Summit County, 20216.0h
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Average hours without power per customer in 2022; last bar is this county in 2021.

Month by month

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Summit County, CO customer-hours without power by month, 2022Jan 5,181, Feb 7,872, Mar 9,784, Apr 10K, May 3,191, Jun 6,565, Jul 7,098, Aug 5,562, Sep 1,427, Oct 16K, Nov 9,963, Dec 15K05k10k15k20k5,181Jan7,872Feb9,784Mar10KApr3,191May6,565Jun7,098Jul5,562Aug1,427Sep16KOct9,963Nov15KDec
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Customer-hours; October was the worst month.

Summit County year over year

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Summit County, CO: average hours without power per customer by year2015: 4.1h; 2016: 3.1h; 2017: 9.5h; 2018: 13.9h, coverage 88%; 2019: 10.1h, coverage 83%; 2020: 6.5h, coverage 84%; 2021: 6.0h, coverage 83%; 2022: 6.1h, coverage 84%; 2023: 7.4h; 2024: 14.3h; 2025: 14.9h0510150%50%100%4.1h20153.1h20169.5h201713.9h201810.1h20196.5h20206.0h20216.1h20227.4h202314.3h202414.9h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Colorado customers tracked each year.

Biggest outages in Summit County, 2022

The 10 outage episodes with the most customers out at once. Times are UTC.

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 1, 2022 18:00December 1, 2022 20:152h 15m7,5027,242
2April 1, 2022 12:15April 2, 2022 00:0011h 45m2,6916,479
3July 22, 2022 12:30July 22, 2022 14:302h2,5952,355
4March 24, 2022 21:30March 25, 2022 01:153h 45m2,5066,885
5October 10, 2022 16:15October 10, 2022 20:304h 15m1,8556,260
6August 10, 2022 13:00August 10, 2022 14:151h 15m1,5991,599
7June 21, 2022 16:30June 22, 2022 06:4514h 15m1,1041,676
8December 22, 2022 04:30December 22, 2022 10:005h 30m1,0311,950
9May 24, 2022 17:30May 24, 2022 18:0030m991360
10December 22, 2022 18:00December 23, 2022 00:456h 45m9854,009

Outage episodes by size in 2022: 56 reached 100+ customers, 8 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 2022, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Public Service Co of Colorado20222.9 hrs1.171.9 hrs1.04
Mountain Parks Electric, Inc202290 min0.8783 min0.67
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 84% of Colorado's customers in 2022; 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, 2022, 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/2022/colorado/summit-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON