massoutage

County annual report · FIPS 26041

2024 Delta County, MI Power Outage Report

In 2024, customers in Delta County, MI went without power for an average of 8.2 hours, a total of 202K customer-hours (Michigan average 8.5 hours). That ranks 33rd worst of 83 Michigan counties and 1096th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
8.2
24,519 customers
Customer-hours out
202K
Peak customers out
6,367
Outages ≥1,000 out
5
0 of 10,000+ · 423 total
Longest outage
3d 2h
began April 2, 2024
Rank in state
33rd/83
1096th of 2,990 US

Compared with MI, the US and 2023

Delta County, MI average hours without power per customer compared with state and national averages, 2024Delta County 8.2 hours, Michigan average 8.5 hours, US average 12.6 hours, Delta County, 2023 1.1 hoursDelta CountyDelta County8.2hMichigan averageMichigan average8.5hUS averageUS average12.6hDelta County, 2023Delta County, 20231.1h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Delta County, MI customer-hours without power by month, 2024Jan 351, Feb 1,552, Mar 179, Apr 160K, May 11K, Jun 11K, Jul 2,641, Aug 4,983, Sep 1,154, Oct 2,509, Nov 5,136, Dec 1,894050k100k150k200k351Jan1,552Feb179Mar160KApr11KMay11KJun2,641Jul4,983Aug1,154Sep2,509Oct5,136Nov1,894Dec
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Customer-hours; April was the worst month.

Delta County year over year

CSVJSON
Delta County, MI: average hours without power per customer by year2015: 6.5h; 2016: 0.2h; 2017: 0.8h; 2018: 1.3h, coverage 91%; 2019: 3.3h, coverage 96%; 2020: 1.5h, coverage 95%; 2021: 2.3h, coverage 95%; 2022: 8.4h, coverage 96%; 2023: 1.1h; 2024: 8.2h; 2025: 4.1h02.557.5100%50%100%6.5h20150.2h20160.8h20171.3h20183.3h20191.5h20202.3h20218.4h20221.1h20238.2h20244.1h2025
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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 Michigan customers tracked each year.

Biggest outages in Delta 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 2, 2024 19:45April 5, 2024 22:303d 2h6,367156K
2November 11, 2024 14:00November 12, 2024 03:3013h 30m1,7233,399
3July 23, 2024 18:15July 23, 2024 20:001h 45m1,291330
4June 8, 2024 20:00June 9, 2024 00:304h 30m1,0503,927
5June 17, 2024 17:30June 19, 2024 04:001d 10h1,0024,201
6May 22, 2024 03:45May 23, 2024 17:001d 13h88310K
7August 16, 2024 03:45August 16, 2024 09:155h 30m7953,762
8April 23, 2024 15:00April 23, 2024 19:454h 45m7891,030
9February 28, 2024 21:15February 29, 2024 05:007h 45m754956
10April 27, 2024 08:30April 27, 2024 11:453h 15m6161,996

Outage episodes by size in 2024: 30 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 Delta 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
DTE Electric Company20248.0 hrs1.252.7 hrs0.94
Upper Peninsula Power Company20246.7 hrs1.653.1 hrs1.26
Upper Michigan Energy Resources Corp.202418.0 hrs1.713.6 hrs1.02
Alger-Delta Coop Electric Assn202415.8 hrs2.103.8 hrs1.23
Cloverland Electric Co-op20248.9 hrs3.616.4 hrs3.05
City of Escanaba-----
City of Gladstone-----

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 Michigan's customers in 2024; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 24,519 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. Delta County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Delta County, MI 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/michigan/delta-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON