County annual report · FIPS 26067
2019 Ionia County, MI Power Outage Report
In 2019, customers in Ionia County, MI went without power for an average of 40.7 hours, a total of 1.4M customer-hours (Michigan average 12.7 hours). That ranks 4th worst of 83 Michigan counties and 73rd of 2,945 nationally.
Compared with MI, the US and 2018
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Ionia County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 6, 2019 06:00 | February 12, 2019 07:45 | 6d 1h | 14,143 | 984K |
| 2 | July 20, 2019 06:00 | July 24, 2019 02:45 | 3d 20h | 5,812 | 243K |
| 3 | October 27, 2019 01:00 | October 27, 2019 22:45 | 21h 45m | 4,945 | 15K |
| 4 | September 12, 2019 04:15 | September 13, 2019 10:00 | 1d 5h | 4,907 | 25K |
| 5 | July 29, 2019 16:30 | July 30, 2019 11:30 | 19h | 4,674 | 11K |
| 6 | August 29, 2019 20:15 | August 31, 2019 16:45 | 1d 20h | 2,255 | 23K |
| 7 | June 19, 2019 18:15 | June 20, 2019 02:30 | 8h 15m | 1,526 | 7,731 |
| 8 | April 5, 2019 19:00 | April 5, 2019 20:30 | 1h 30m | 1,424 | 2,135 |
| 9 | May 22, 2019 07:45 | May 22, 2019 16:45 | 9h | 1,408 | 3,925 |
| 10 | January 13, 2019 02:15 | January 13, 2019 05:15 | 3h | 1,365 | 3,764 |
Outage episodes by size in 2019: 69 reached 100+ customers, 12 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 Ionia County reported on EIA Form 861 for 2019, 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 |
| Tri-County Electric Coop (MI) | 2018 | 5.0 hrs | 1.98 | 4.2 hrs | 1.89 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of Portland - (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 96% of Michigan's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 35,242 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. Ionia County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ionia County, MI annual power outage report, 2019, 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/2019/michigan/ionia-county