County annual report · FIPS 26001
2021 Alcona County, MI Power Outage Report
In 2021, customers in Alcona County, MI went without power for an average of 123.8 hours, a total of 749K customer-hours (Michigan average 26.6 hours). That ranks 2nd worst of 83 Michigan counties and 51st of 2,974 nationally.
Compared with MI, the US and 2020
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Alcona County, 2021
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 16, 2021 09:30 | December 22, 2021 01:45 | 5d 16h | 8,243 | 461K |
| 2 | September 14, 2021 20:15 | September 15, 2021 19:15 | 23h | 4,235 | 41K |
| 3 | July 1, 2021 06:15 | July 1, 2021 10:30 | 4h 15m | 2,403 | 8,409 |
| 4 | March 11, 2021 13:45 | March 13, 2021 06:00 | 1d 16h | 1,881 | 31K |
| 5 | December 11, 2021 04:30 | December 14, 2021 09:30 | 3d 5h | 1,759 | 61K |
| 6 | July 4, 2021 21:15 | July 6, 2021 22:00 | 2d | 1,608 | 19K |
| 7 | August 9, 2021 19:15 | August 10, 2021 09:30 | 14h 15m | 1,434 | 8,711 |
| 8 | November 11, 2021 15:00 | November 12, 2021 05:30 | 14h 30m | 1,309 | 7,275 |
| 9 | December 5, 2021 14:15 | December 5, 2021 21:45 | 7h 30m | 1,087 | 7,294 |
| 10 | July 31, 2021 19:00 | August 1, 2021 08:45 | 13h 45m | 900 | 5,906 |
Outage episodes by size in 2021: 43 reached 100+ customers, 9 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 Alcona County reported on EIA Form 861 for 2021, 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) | 2021 | 15.2 hrs | 1.60 | 3.8 hrs | 1.05 |
| Presque Isle Elec & Gas Coop | 2015 | 22.8 hrs | 2.30 | 3.8 hrs | 1.32 |
| Alpena Power Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 95% of Michigan's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,050 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. Alcona County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Alcona County, MI annual power outage report, 2021, 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/2021/michigan/alcona-county