County annual report · FIPS 26055
2018 Grand Traverse County, MI Power Outage Report
In 2018, customers in Grand Traverse County, MI went without power for an average of 1.8 hours, a total of 109K customer-hours (Michigan average 10.0 hours). That ranks 70th worst of 80 Michigan counties and 1951st 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 Grand Traverse 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 10, 2018 19:00 | May 10, 2018 23:30 | 4h 30m | 3,276 | 5,302 |
| 2 | June 30, 2018 23:30 | July 3, 2018 01:45 | 2d 2h | 3,024 | 11K |
| 3 | November 3, 2018 04:00 | November 3, 2018 10:15 | 6h 15m | 2,537 | 15K |
| 4 | August 28, 2018 05:30 | August 30, 2018 21:30 | 2d 16h | 1,944 | 40K |
| 5 | November 10, 2018 02:45 | November 10, 2018 07:15 | 4h 30m | 1,714 | 6,720 |
| 6 | December 24, 2018 09:15 | December 24, 2018 14:30 | 5h 15m | 692 | 2,257 |
| 7 | February 19, 2018 00:45 | February 19, 2018 01:30 | 45m | 579 | 434 |
| 8 | April 15, 2018 02:30 | April 15, 2018 20:45 | 18h 15m | 487 | 2,976 |
| 9 | September 16, 2018 18:45 | September 16, 2018 21:00 | 2h 15m | 477 | 489 |
| 10 | January 6, 2018 16:45 | January 6, 2018 20:45 | 4h | 473 | 1,559 |
Outage episodes by size in 2018: 35 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 Grand Traverse 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 |
| Great Lakes Energy Coop | 2018 | 14.6 hrs | 2.44 | 2.7 hrs | 1.41 |
| Cherryland Electric Coop Inc | 2018 | 3.4 hrs | 1.34 | 2.6 hrs | 1.20 |
| City of Traverse City - (MI) | 2018 | 52 min | 0.66 | 52 min | 0.66 |
| Wolverine Power Supply Coop | - | - | - | - | - |
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 ÷ 60,521 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. Grand Traverse County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grand Traverse 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/grand-traverse-county