County annual report · FIPS 26041
2025 Delta County, MI Power Outage Report
In 2025, customers in Delta County, MI went without power for an average of 4.1 hours, a total of 101K customer-hours (Michigan average 12.9 hours). That ranks 73rd worst of 83 Michigan counties and 1733rd of 3,000 nationally.
Compared with MI, the US and 2024
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Delta County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 29, 2025 00:45 | January 1, 2026 00:00 | 2d 23h | 2,635 | 46K |
| 2 | July 15, 2025 15:45 | July 15, 2025 22:45 | 7h | 2,590 | 3,907 |
| 3 | August 24, 2025 22:15 | August 25, 2025 04:00 | 5h 45m | 2,254 | 2,911 |
| 4 | December 3, 2025 13:45 | December 3, 2025 16:45 | 3h | 1,293 | 536 |
| 5 | November 25, 2025 16:15 | November 25, 2025 18:30 | 2h 15m | 1,282 | 643 |
| 6 | November 3, 2025 14:00 | November 4, 2025 00:00 | 10h | 1,217 | 2,165 |
| 7 | November 21, 2025 22:15 | November 22, 2025 06:15 | 8h | 1,144 | 2,292 |
| 8 | June 21, 2025 12:45 | June 22, 2025 04:45 | 16h | 978 | 3,456 |
| 9 | May 29, 2025 17:15 | May 29, 2025 21:15 | 4h | 898 | 832 |
| 10 | November 26, 2025 20:30 | November 27, 2025 18:45 | 22h 15m | 839 | 6,852 |
Outage episodes by size in 2025: 35 reached 100+ customers, 7 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 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| DTE Electric Company | 2024 | 8.0 hrs | 1.25 | 2.7 hrs | 0.94 |
| Upper Peninsula Power Company | 2024 | 6.7 hrs | 1.65 | 3.1 hrs | 1.26 |
| Upper Michigan Energy Resources Corp. | 2024 | 18.0 hrs | 1.71 | 3.6 hrs | 1.02 |
| Alger-Delta Coop Electric Assn | 2024 | 15.8 hrs | 2.10 | 3.8 hrs | 1.23 |
| Cloverland Electric Co-op | 2024 | 8.9 hrs | 3.61 | 6.4 hrs | 3.05 |
| 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 2025; 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, 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/michigan/delta-county