massoutage

County annual report · FIPS 08049

2025 Grand County, CO Power Outage Report

In 2025, customers in Grand County, CO went without power for an average of 0.0 hours, a total of 500 customer-hours (Colorado average 4.6 hours). That ranks 50th worst of 52 Colorado counties and 2963rd of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
0.0
19,092 customers
Customer-hours out
500
Peak customers out
35
Outages ≥1,000 out
0
0 of 10,000+ · 22 total
Longest outage
16h 30m
began December 19, 2025
Rank in state
50th/52
2963rd of 3,000 US

Compared with CO, the US and 2024

Grand County, CO average hours without power per customer compared with state and national averages, 2025Grand County 0.0 hours, Colorado average 4.6 hours, US average 5.9 hours, Grand County, 2024 0.1 hoursGrand CountyGrand County0.0hColorado averageColorado average4.6hUS averageUS average5.9hGrand County, 2024Grand County, 20240.1h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

CSVJSON
Grand County, CO customer-hours without power by month, 2025Jan 2, Feb 0, Mar 0, Apr 2, May 5, Jun 39, Jul 125, Aug 89, Sep 72, Oct 137, Nov 0, Dec 300501001502Jan0Feb0Mar2Apr5May39Jun125Jul89Aug72Sep137Oct0Nov30Dec
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Customer-hours; October was the worst month.

Grand County year over year

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Grand County, CO: average hours without power per customer by year2015: no data; 2016: no data; 2017: 0.1h; 2018: 0.2h, coverage 88%; 2019: 0.5h, coverage 83%; 2020: 6.3h, coverage 84%; 2021: 0.0h, coverage 83%; 2022: 0.0h, coverage 84%; 2023: 0.0h; 2024: 0.1h; 2025: 0.0h024680%50%100%n/a2015n/a20160.1h20170.2h20180.5h20196.3h20200.0h20210.0h20220.0h20230.1h20240.0h2025
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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 Grand County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 1, 2025 15:45October 1, 2025 19:303h 45m35131
2September 14, 2025 00:15September 14, 2025 02:452h 30m3369
3July 27, 2025 14:00July 27, 2025 18:004h30119
4August 15, 2025 23:45August 16, 2025 03:003h 15m3082
5June 20, 2025 18:30June 20, 2025 23:455h 15m737
6January 21, 2025 15:30January 21, 2025 17:302h12
7April 27, 2025 10:00April 27, 2025 11:451h 45m12
8May 5, 2025 15:45May 5, 2025 17:301h 45m12
9May 21, 2025 06:30May 21, 2025 09:453h 15m13
10June 5, 2025 19:45June 5, 2025 22:002h 15m12

Outage episodes by size in 2025: 0 reached 100+ customers, 0 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 Grand County reported on EIA Form 861 for 2025, 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
Yampa Valley Electric Assn Inc20244.9 hrs2.203.9 hrs1.94
Mountain Parks Electric, Inc20242.5 hrs1.7685 min1.13
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 ÷ 19,092 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. Grand County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Grand 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/grand-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON