County annual report · FIPS 26017
2015 Bay County, MI Power Outage Report
In 2015, customers in Bay County, MI went without power for an average of 1.4 hours, a total of 93K customer-hours (Michigan average 6.8 hours). That ranks 74th worst of 80 Michigan counties and 1534th 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 Bay 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 | November 6, 2015 11:00 | November 7, 2015 04:45 | 17h 45m | 3,163 | 3,412 |
| 2 | August 25, 2015 19:45 | August 26, 2015 07:45 | 12h | 2,017 | 1,323 |
| 3 | August 2, 2015 17:00 | August 4, 2015 17:45 | 2d | 1,242 | 18K |
| 4 | August 9, 2015 09:15 | August 9, 2015 13:45 | 4h 30m | 842 | 2,296 |
| 5 | September 13, 2015 12:15 | September 14, 2015 11:30 | 23h 15m | 800 | 8,001 |
| 6 | June 6, 2015 09:15 | June 6, 2015 10:45 | 1h 30m | 583 | 731 |
| 7 | July 1, 2015 19:00 | July 1, 2015 23:45 | 4h 45m | 571 | 152 |
| 8 | December 24, 2015 07:00 | December 26, 2015 22:45 | 2d 15h | 538 | 18K |
| 9 | July 22, 2015 22:15 | July 23, 2015 00:30 | 2h 15m | 519 | 1,043 |
| 10 | February 14, 2015 16:30 | February 15, 2015 06:15 | 13h 45m | 501 | 1,285 |
Outage episodes by size in 2015: 45 reached 100+ customers, 3 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 Bay 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 |
| DTE Electric Company | 2015 | 4.6 hrs | 1.00 | 3.1 hrs | 0.91 |
| City of Bay City - (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 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 66,162 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. Bay County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Bay 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/bay-county