County annual report · FIPS 26041
2018 Delta County, MI Power Outage Report
In 2018, customers in Delta County, MI went without power for an average of 1.3 hours, a total of 31K customer-hours (Michigan average 10.0 hours). That ranks 71st worst of 80 Michigan counties and 2200th of 2,798 nationally.
Compared with MI, the US and 2017
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Delta County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 21, 2018 05:30 | September 23, 2018 00:00 | 1d 18h | 2,571 | 20K |
| 2 | October 4, 2018 03:30 | October 4, 2018 15:45 | 12h 15m | 789 | 885 |
| 3 | October 20, 2018 17:00 | October 20, 2018 23:00 | 6h | 752 | 1,551 |
| 4 | April 5, 2018 14:00 | April 5, 2018 15:45 | 1h 45m | 587 | 881 |
| 5 | August 1, 2018 19:15 | August 2, 2018 02:15 | 7h | 343 | 638 |
| 6 | November 4, 2018 18:45 | November 5, 2018 17:15 | 22h 30m | 318 | 2,208 |
| 7 | July 13, 2018 21:00 | July 13, 2018 22:45 | 1h 45m | 279 | 261 |
| 8 | June 4, 2018 15:00 | June 4, 2018 20:15 | 5h 15m | 260 | 219 |
| 9 | October 3, 2018 23:15 | October 4, 2018 02:15 | 3h | 257 | 314 |
| 10 | October 17, 2018 14:15 | October 17, 2018 15:15 | 1h | 211 | 211 |
Outage episodes by size in 2018: 17 reached 100+ customers, 1 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 2018, 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 | 2018 | 8.1 hrs | 1.36 | 3.0 hrs | 1.04 |
| Upper Peninsula Power Company | 2018 | 2.3 hrs | 1.16 | 2.3 hrs | 1.16 |
| Upper Michigan Energy Resources Corp. | 2018 | 4.1 hrs | 1.16 | 2.4 hrs | 0.91 |
| Alger-Delta Coop Electric Assn | 2018 | 74 min | 0.33 | 74 min | 0.33 |
| Cloverland Electric Co-op | 2018 | 12.7 hrs | 2.85 | 3.5 hrs | 1.82 |
| 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 91% of Michigan's customers in 2018; 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, 2018, 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/2018/michigan/delta-county