County annual report · FIPS 26041
2017 Delta County, MI Power Outage Report
In 2017, customers in Delta County, MI went without power for an average of 0.8 hours, a total of 19K customer-hours (Michigan average 6.0 hours). That ranks 76th worst of 80 Michigan counties and 2146th of 2,786 nationally.
Compared with MI, the US and 2016
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Delta County, 2017
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 5, 2017 07:00 | December 5, 2017 18:00 | 11h | 1,453 | 2,243 |
| 2 | June 11, 2017 19:15 | June 12, 2017 23:45 | 1d 4h | 1,307 | 8,291 |
| 3 | March 7, 2017 14:45 | March 8, 2017 20:45 | 1d 6h | 709 | 3,116 |
| 4 | October 24, 2017 10:45 | October 25, 2017 01:15 | 14h 30m | 709 | 1,439 |
| 5 | June 8, 2017 15:45 | June 8, 2017 16:15 | 30m | 584 | 292 |
| 6 | June 16, 2017 21:45 | June 17, 2017 05:30 | 7h 45m | 267 | 531 |
| 7 | December 19, 2017 05:30 | December 19, 2017 08:45 | 3h 15m | 174 | 400 |
| 8 | April 6, 2017 15:00 | April 6, 2017 17:30 | 2h 30m | 172 | 362 |
| 9 | April 15, 2017 10:00 | April 15, 2017 12:30 | 2h 30m | 115 | 288 |
| 10 | May 17, 2017 23:30 | May 18, 2017 01:00 | 1h 30m | 86 | 129 |
Outage episodes by size in 2017: 9 reached 100+ customers, 2 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 2017, 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 | 2017 | 17.7 hrs | 1.39 | 3.3 hrs | 0.99 |
| Upper Peninsula Power Company | 2017 | 10.0 hrs | 2.20 | 2.9 hrs | 1.30 |
| Upper Michigan Energy Resources Corp. | 2017 | 9.2 hrs | 1.85 | 2.5 hrs | 0.98 |
| Alger-Delta Coop Electric Assn | 2017 | 5.6 hrs | 0.99 | 73 min | 0.21 |
| Cloverland Electric Co-op | 2017 | 14.5 hrs | 3.17 | 3.5 hrs | 1.61 |
| 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 2017; 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, 2017, 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/2017/michigan/delta-county