County annual report · FIPS 26085
2015 Lake County, MI Power Outage Report
In 2015, customers in Lake County, MI went without power for an average of 16.6 hours, a total of 153K customer-hours (Michigan average 6.8 hours). That ranks 21st worst of 80 Michigan counties and 151st of 2,484 nationally.
Compared with MI, the US
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Lake County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 24, 2015 06:00 | December 27, 2015 20:45 | 3d 14h | 5,604 | 101K |
| 2 | December 28, 2015 15:00 | December 29, 2015 19:45 | 1d 4h | 1,519 | 7,032 |
| 3 | July 13, 2015 15:15 | July 14, 2015 00:45 | 9h 30m | 1,147 | 4,122 |
| 4 | March 29, 2015 17:15 | March 30, 2015 00:00 | 6h 45m | 1,065 | 2,362 |
| 5 | July 14, 2015 04:30 | July 15, 2015 00:00 | 19h 30m | 861 | 3,205 |
| 6 | March 20, 2015 02:45 | March 20, 2015 04:45 | 2h | 854 | 954 |
| 7 | July 22, 2015 18:00 | July 22, 2015 18:30 | 30m | 768 | 279 |
| 8 | May 26, 2015 13:00 | May 26, 2015 17:45 | 4h 45m | 757 | 2,213 |
| 9 | January 6, 2015 00:30 | January 6, 2015 04:00 | 3h 30m | 699 | 1,763 |
| 10 | July 26, 2015 21:30 | July 27, 2015 01:00 | 3h 30m | 547 | 432 |
Outage episodes by size in 2015: 40 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 Lake County reported on EIA Form 861 for 2015, 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) | 2015 | 7.3 hrs | 1.18 | 3.0 hrs | 0.98 |
| Great Lakes Energy Coop | 2015 | 15.2 hrs | 2.27 | 2.9 hrs | 1.35 |
| 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 n/a of Michigan's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 9,226 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. Lake County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Lake County, MI annual power outage report, 2015, 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/2015/michigan/lake-county