County annual report · FIPS 26157
2018 Tuscola County, MI Power Outage Report
In 2018, customers in Tuscola County, MI went without power for an average of 21.7 hours, a total of 361K customer-hours (Michigan average 10.0 hours). That ranks 11th worst of 80 Michigan counties and 259th 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 Tuscola 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 | May 4, 2018 13:15 | May 11, 2018 02:15 | 6d 13h | 6,715 | 284K |
| 2 | December 27, 2018 22:30 | December 29, 2018 22:15 | 1d 23h | 1,279 | 8,758 |
| 3 | July 20, 2018 15:30 | July 20, 2018 20:15 | 4h 45m | 1,019 | 1,346 |
| 4 | July 2, 2018 10:15 | July 3, 2018 02:30 | 16h 15m | 1,018 | 1,488 |
| 5 | April 13, 2018 20:00 | April 15, 2018 13:30 | 1d 17h | 1,017 | 18K |
| 6 | September 25, 2018 13:15 | September 26, 2018 02:00 | 12h 45m | 797 | 3,238 |
| 7 | August 27, 2018 05:15 | August 30, 2018 13:30 | 3d 8h | 668 | 5,784 |
| 8 | June 24, 2018 04:15 | June 24, 2018 19:45 | 15h 30m | 665 | 2,149 |
| 9 | November 26, 2018 12:15 | November 28, 2018 23:00 | 2d 10h | 510 | 3,803 |
| 10 | July 14, 2018 12:30 | July 15, 2018 02:00 | 13h 30m | 494 | 1,501 |
Outage episodes by size in 2018: 27 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 Tuscola 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 |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2018 | 6.8 hrs | 1.29 | 3.3 hrs | 1.02 |
| DTE Electric Company | 2018 | 8.1 hrs | 1.36 | 3.0 hrs | 1.04 |
| Thumb Electric Coop of Mich | - | - | - | - | - |
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 ÷ 16,639 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. Tuscola County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tuscola 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/tuscola-county