massoutage

County annual report · FIPS 08013

2024 Boulder County, CO Power Outage Report

In 2024, customers in Boulder County, CO went without power for an average of 11.8 hours, a total of 2.0M customer-hours (Colorado average 4.7 hours). That ranks 8th worst of 52 Colorado counties and 799th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
11.8
166,613 customers
Customer-hours out
2.0M
Peak customers out
40,368
Outages ≥1,000 out
42
3 of 10,000+ · 909 total
Longest outage
5d 23h
began April 6, 2024
Rank in state
8th/52
799th of 2,990 US

Compared with CO, the US and 2023

Boulder County, CO average hours without power per customer compared with state and national averages, 2024Boulder County 11.8 hours, Colorado average 4.7 hours, US average 12.6 hours, Boulder County, 2023 1.4 hoursBoulder CountyBoulder County11.8hColorado averageColorado average4.7hUS averageUS average12.6hBoulder County, 2023Boulder County, 20231.4h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Boulder County, CO customer-hours without power by month, 2024Jan 7,864, Feb 40K, Mar 114K, Apr 1.5M, May 88K, Jun 30K, Jul 72K, Aug 43K, Sep 21K, Oct 21K, Nov 16K, Dec 18K0500k1M1.5M7,864Jan40KFeb114KMar1.5MApr88KMay30KJun72KJul43KAug21KSep21KOct16KNov18KDec
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Customer-hours; April was the worst month.

Boulder County year over year

CSVJSON
Boulder County, CO: average hours without power per customer by year2015: 1.0h; 2016: 2.5h; 2017: 1.8h; 2018: 1.5h, coverage 88%; 2019: 2.5h, coverage 83%; 2020: 2.4h, coverage 84%; 2021: 2.8h, coverage 83%; 2022: 3.3h, coverage 84%; 2023: 1.4h; 2024: 11.8h; 2025: 16.9h051015200%50%100%1.0h20152.5h20161.8h20171.5h20182.5h20192.4h20202.8h20213.3h20221.4h202311.8h202416.9h2025
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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 Boulder County, 2024

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 6, 2024 02:00April 12, 2024 01:305d 23h40,3681.4M
2March 14, 2024 03:15March 17, 2024 23:453d 20h20,891106K
3February 3, 2024 21:15February 5, 2024 07:001d 9h11,61730K
4August 14, 2024 14:15August 17, 2024 00:002d 9h7,3517,547
5November 6, 2024 12:15November 7, 2024 04:3016h 15m5,7191,503
6July 12, 2024 10:45July 13, 2024 20:301d 9h5,48518K
7September 11, 2024 14:45September 12, 2024 02:3011h 45m4,5165,474
8September 20, 2024 03:15September 20, 2024 04:0045m3,9042,927
9July 25, 2024 14:00July 25, 2024 19:455h 45m3,8943,997
10May 6, 2024 12:45May 9, 2024 13:153d3,74777K

Outage episodes by size in 2024: 142 reached 100+ customers, 42 reached 1,000+ customers, 3 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 Boulder County reported on EIA Form 861 for 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Public Service Co of Colorado20245.9 hrs1.682.6 hrs1.36
United Power, Inc202477 min1.2077 min1.20
Poudre Valley REA, Inc20245.4 hrs1.3374 min0.72
City of Longmont202419 min0.4719 min0.47
WAPA-- Western Area Power Administration-----
Town of Estes Park-----
Town of Lyons - (CO)-----

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 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 166,613 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. Boulder County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Boulder County, CO annual power outage report, 2024, 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/2024/colorado/boulder-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON