County annual report · FIPS 26057
2020 Gratiot County, MI Power Outage Report
In 2020, customers in Gratiot County, MI went without power for an average of 9.3 hours, a total of 196K customer-hours (Michigan average 9.8 hours). That ranks 43rd worst of 83 Michigan counties and 841st 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 Gratiot 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 02:30 | June 14, 2020 01:45 | 3d 23h | 4,369 | 148K |
| 2 | July 7, 2020 17:45 | July 9, 2020 02:30 | 1d 8h | 1,621 | 12K |
| 3 | June 3, 2020 05:15 | June 4, 2020 12:30 | 1d 7h | 1,329 | 10K |
| 4 | April 25, 2020 18:15 | April 25, 2020 19:45 | 1h 30m | 493 | 740 |
| 5 | April 28, 2020 15:30 | April 28, 2020 18:00 | 2h 30m | 493 | 1,233 |
| 6 | August 19, 2020 18:30 | August 19, 2020 22:45 | 4h 15m | 363 | 908 |
| 7 | July 10, 2020 09:45 | July 10, 2020 22:45 | 13h | 357 | 1,181 |
| 8 | February 1, 2020 19:00 | February 1, 2020 23:30 | 4h 30m | 338 | 765 |
| 9 | July 19, 2020 13:15 | July 20, 2020 06:15 | 17h | 315 | 1,610 |
| 10 | March 20, 2020 13:30 | March 20, 2020 21:30 | 8h | 302 | 967 |
Outage episodes by size in 2020: 25 reached 100+ customers, 3 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 Gratiot 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 |
| Tri-County Electric Coop (MI) | 2020 | 3.8 hrs | 1.61 | 2.6 hrs | 1.42 |
| City of St Louis - (MI) | - | - | - | - | - |
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 ÷ 21,004 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. Gratiot County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gratiot 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/gratiot-county