County annual report · FIPS 26041
2015 Delta County, MI Power Outage Report
In 2015, customers in Delta County, MI went without power for an average of 6.5 hours, a total of 159K customer-hours (Michigan average 6.8 hours). That ranks 38th worst of 80 Michigan counties and 415th of 2,484 nationally.
Compared with MI, the US
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Delta County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 25, 2015 12:45 | August 25, 2015 19:00 | 6h 15m | 4,681 | 1,176 |
| 2 | September 15, 2015 13:45 | September 15, 2015 16:45 | 3h | 4,680 | 13K |
| 3 | August 31, 2015 18:00 | August 31, 2015 20:15 | 2h 15m | 4,670 | 6,112 |
| 4 | September 9, 2015 19:15 | September 9, 2015 19:30 | 15m | 4,596 | 1,149 |
| 5 | September 14, 2015 16:00 | September 14, 2015 16:45 | 45m | 4,596 | 2,898 |
| 6 | September 29, 2015 20:00 | September 29, 2015 20:30 | 30m | 4,596 | 1,749 |
| 7 | October 6, 2015 19:00 | October 8, 2015 20:30 | 2d 1h | 4,590 | 118K |
| 8 | December 24, 2015 07:30 | December 25, 2015 16:45 | 1d 9h | 1,598 | 8,843 |
| 9 | November 8, 2015 22:45 | November 9, 2015 03:15 | 4h 30m | 561 | 1,408 |
| 10 | July 15, 2015 17:45 | July 15, 2015 18:00 | 15m | 521 | 130 |
Outage episodes by size in 2015: 17 reached 100+ customers, 8 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 2015, 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 | 2015 | 4.6 hrs | 1.00 | 3.1 hrs | 0.91 |
| Upper Peninsula Power Company | 2015 | 2.7 hrs | 1.30 | 2.0 hrs | 1.10 |
| Alger-Delta Coop Electric Assn | 2015 | 1.8 hrs | 1.09 | 1.8 hrs | 1.08 |
| Cloverland Electric Co-op | 2015 | 14.6 hrs | 2.07 | 3.5 hrs | 1.66 |
| Upper Michigan Energy Resources Corp. | - | - | - | - | - |
| 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 2015; 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, 2015, 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/2015/michigan/delta-county