massoutage

County annual report · FIPS 29161

2025 Phelps County, MO Power Outage Report

In 2025, customers in Phelps County, MO went without power for an average of 9.1 hours, a total of 202K customer-hours (Missouri average 8.9 hours). That ranks 40th worst of 115 Missouri counties and 876th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
9.1
22,129 customers
Customer-hours out
202K
Peak customers out
4,532
Outages ≥1,000 out
5
0 of 10,000+ · 543 total
Longest outage
5d 19h
began March 14, 2025
Rank in state
40th/115
876th of 3,000 US

Compared with MO, the US and 2024

Phelps County, MO average hours without power per customer compared with state and national averages, 2025Phelps County 9.1 hours, Missouri average 8.9 hours, US average 5.9 hours, Phelps County, 2024 2.6 hoursPhelps CountyPhelps County9.1hMissouri averageMissouri average8.9hUS averageUS average5.9hPhelps County, 2024Phelps County, 20242.6h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Phelps County, MO customer-hours without power by month, 2025Jan 11K, Feb 1,418, Mar 165K, Apr 743, May 3,777, Jun 2,955, Jul 1,343, Aug 4,399, Sep 2,289, Oct 1,548, Nov 4,115, Dec 2,992050k100k150k200k11KJan1,418Feb165KMar743Apr3,777May2,955Jun1,343Jul4,399Aug2,289Sep1,548Oct4,115Nov2,992Dec
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Customer-hours; March was the worst month.

Phelps County year over year

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Phelps County, MO: average hours without power per customer by year2015: no data; 2016: no data; 2017: 4.3h; 2018: 0.5h, coverage 80%; 2019: 2.3h, coverage 95%; 2020: 1.4h, coverage 95%; 2021: 1.7h, coverage 95%; 2022: 1.7h, coverage 95%; 2023: 2.8h; 2024: 2.6h; 2025: 9.1h02.557.5100%50%100%n/a2015n/a20164.3h20170.5h20182.3h20191.4h20201.7h20211.7h20222.8h20232.6h20249.1h2025
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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 Missouri customers tracked each year.

Biggest outages in Phelps County, 2025

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
1March 14, 2025 20:45March 20, 2025 16:005d 19h4,532164K
2November 25, 2025 07:15November 25, 2025 08:451h 30m1,5552,333
3December 19, 2025 03:00December 19, 2025 08:455h 45m1,2812,339
4November 13, 2025 06:15November 13, 2025 07:151h1,021769
5March 31, 2025 14:30March 31, 2025 15:0030m1,014256
6January 5, 2025 16:15January 6, 2025 13:0020h 45m9976,072
7May 16, 2025 18:45May 16, 2025 23:455h9101,538
8September 29, 2025 13:45September 29, 2025 20:006h 15m6621,013
9May 20, 2025 03:45May 20, 2025 13:4510h6231,214
10January 22, 2025 03:15January 22, 2025 04:451h 30m586879

Outage episodes by size in 2025: 33 reached 100+ customers, 5 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 Phelps County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Union Electric Co - (MO)20242.5 hrs0.771.6 hrs0.67
Intercounty Electric Coop Assn - (MO)20244.5 hrs1.723.0 hrs1.45
Crawford Electric Coop, Inc20245.9 hrs2.134.5 hrs1.94
City of Rolla - (MO)20242.4 hrs1.7826 min0.88
Gascosage Electric Coop-----
City of Newburg - (MO)-----
City of St James - (MO)-----

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 Missouri's customers in 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 22,129 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. Phelps County has data for 2017–2025.

Cite this report

MassOutage (massoutage.com), Phelps County, MO 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/missouri/phelps-county

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