County annual report · FIPS 26057
2017 Gratiot County, MI Power Outage Report
In 2017, customers in Gratiot County, MI went without power for an average of 4.8 hours, a total of 102K customer-hours (Michigan average 6.0 hours). That ranks 42nd worst of 80 Michigan counties and 983rd 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 Gratiot 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 | September 23, 2017 01:15 | September 23, 2017 05:30 | 4h 15m | 4,855 | 12K |
| 2 | March 9, 2017 19:30 | March 10, 2017 16:30 | 21h | 2,377 | 38K |
| 3 | March 10, 2017 19:30 | March 12, 2017 06:00 | 1d 10h | 1,133 | 18K |
| 4 | October 8, 2017 01:00 | October 8, 2017 11:45 | 10h 45m | 1,019 | 4,421 |
| 5 | April 25, 2017 09:15 | April 25, 2017 18:45 | 9h 30m | 801 | 1,226 |
| 6 | October 15, 2017 02:45 | October 15, 2017 06:15 | 3h 30m | 700 | 2,041 |
| 7 | December 19, 2017 13:00 | December 19, 2017 18:15 | 5h 15m | 571 | 1,177 |
| 8 | May 18, 2017 15:45 | May 19, 2017 07:45 | 16h | 388 | 2,401 |
| 9 | December 17, 2017 20:00 | December 17, 2017 21:30 | 1h 30m | 364 | 546 |
| 10 | July 6, 2017 04:45 | July 6, 2017 08:15 | 3h 30m | 335 | 646 |
Outage episodes by size in 2017: 31 reached 100+ customers, 4 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 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 |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2017 | 10.1 hrs | 1.31 | 2.7 hrs | 0.89 |
| DTE Electric Company | 2017 | 17.7 hrs | 1.39 | 3.3 hrs | 0.99 |
| Tri-County Electric Coop (MI) | 2017 | 3.9 hrs | 1.52 | 2.3 hrs | 1.34 |
| 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 n/a of Michigan's customers in 2017; 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, 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/gratiot-county