County annual report · FIPS 26005
2018 Allegan County, MI Power Outage Report
In 2018, customers in Allegan County, MI went without power for an average of 4.7 hours, a total of 407K customer-hours (Michigan average 10.0 hours). That ranks 46th worst of 80 Michigan counties and 1104th 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 Allegan 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 | August 28, 2018 18:45 | August 31, 2018 18:30 | 2d 23h | 4,632 | 102K |
| 2 | October 20, 2018 16:30 | October 22, 2018 05:00 | 1d 12h | 4,090 | 56K |
| 3 | April 14, 2018 08:00 | April 16, 2018 15:15 | 2d 7h | 3,705 | 72K |
| 4 | June 30, 2018 21:15 | July 2, 2018 17:15 | 1d 20h | 2,999 | 22K |
| 5 | February 25, 2018 09:00 | February 26, 2018 09:30 | 1d | 2,042 | 16K |
| 6 | October 29, 2018 02:30 | October 29, 2018 06:45 | 4h 15m | 1,779 | 4,434 |
| 7 | May 4, 2018 13:00 | May 6, 2018 01:45 | 1d 12h | 1,716 | 13K |
| 8 | February 21, 2018 19:30 | February 22, 2018 00:15 | 4h 45m | 1,297 | 4,192 |
| 9 | July 3, 2018 21:00 | July 4, 2018 05:15 | 8h 15m | 1,291 | 1,937 |
| 10 | March 17, 2018 06:00 | March 17, 2018 09:45 | 3h 45m | 1,277 | 2,987 |
Outage episodes by size in 2018: 109 reached 100+ customers, 13 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 Allegan 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 |
| Indiana Michigan Power Co | 2018 | 7.3 hrs | 1.53 | 4.1 hrs | 1.30 |
| Great Lakes Energy Coop | 2018 | 14.6 hrs | 2.44 | 2.7 hrs | 1.41 |
| City of Holland | 2018 | 37 min | 0.38 | 22 min | 0.25 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of South Haven - (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 91% of Michigan's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 86,725 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. Allegan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Allegan 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/allegan-county