County annual report · FIPS 26157
2020 Tuscola County, MI Power Outage Report
In 2020, customers in Tuscola County, MI went without power for an average of 26.0 hours, a total of 433K customer-hours (Michigan average 9.8 hours). That ranks 10th worst of 83 Michigan counties and 321st of 3,019 nationally.
Compared with MI, the US and 2019
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Tuscola County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 10, 2020 18:00 | June 14, 2020 01:30 | 3d 7h | 48,127 | 48K |
| 2 | January 11, 2020 12:15 | January 15, 2020 12:45 | 4d | 9,691 | 106K |
| 3 | November 15, 2020 10:15 | November 20, 2020 20:00 | 5d 9h | 5,107 | 198K |
| 4 | October 31, 2020 18:15 | November 3, 2020 17:30 | 2d 23h | 2,786 | 15K |
| 5 | February 12, 2020 14:00 | February 12, 2020 21:30 | 7h 30m | 2,184 | 554 |
| 6 | July 22, 2020 17:30 | July 23, 2020 09:45 | 16h 15m | 1,240 | 3,225 |
| 7 | July 19, 2020 14:00 | July 22, 2020 00:00 | 2d 10h | 1,211 | 3,992 |
| 8 | March 6, 2020 18:15 | March 6, 2020 21:00 | 2h 45m | 1,205 | 2,982 |
| 9 | June 3, 2020 07:15 | June 3, 2020 10:30 | 3h 15m | 1,060 | 2,098 |
| 10 | October 23, 2020 19:00 | October 25, 2020 21:15 | 2d 2h | 1,051 | 12K |
Outage episodes by size in 2020: 42 reached 100+ customers, 11 reached 1,000+ customers, 1 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 2020, 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) | 2020 | 8.5 hrs | 1.35 | 3.2 hrs | 1.03 |
| DTE Electric Company | 2020 | 5.9 hrs | 1.29 | 2.4 hrs | 1.01 |
| 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 95% of Michigan's customers in 2020; 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, 2020, 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/2020/michigan/tuscola-county