County annual report · FIPS 26093
2021 Livingston County, MI Power Outage Report
In 2021, customers in Livingston County, MI went without power for an average of 36.7 hours, a total of 3.2M customer-hours (Michigan average 26.6 hours). That ranks 27th worst of 83 Michigan counties and 245th 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 Livingston 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 | August 7, 2021 13:00 | August 21, 2021 06:00 | 13d 17h | 38,504 | 2.1M |
| 2 | December 10, 2021 13:00 | December 15, 2021 09:45 | 4d 20h | 13,004 | 231K |
| 3 | September 7, 2021 12:15 | September 11, 2021 20:45 | 4d 8h | 9,310 | 169K |
| 4 | September 21, 2021 00:15 | September 30, 2021 06:00 | 9d 5h | 8,222 | 220K |
| 5 | June 11, 2021 19:45 | June 14, 2021 02:15 | 2d 6h | 5,840 | 23K |
| 6 | May 23, 2021 19:45 | May 26, 2021 12:15 | 2d 16h | 3,391 | 20K |
| 7 | July 16, 2021 11:00 | July 18, 2021 10:00 | 1d 23h | 3,181 | 7,516 |
| 8 | September 12, 2021 17:30 | September 16, 2021 01:15 | 3d 7h | 3,072 | 45K |
| 9 | July 24, 2021 16:00 | July 28, 2021 07:45 | 3d 15h | 2,711 | 71K |
| 10 | January 8, 2021 16:00 | January 8, 2021 21:00 | 5h | 2,664 | 1,582 |
Outage episodes by size in 2021: 100 reached 100+ customers, 35 reached 1,000+ customers, 2 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 Livingston 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 |
| DTE Electric Company | 2021 | 15.5 hrs | 1.58 | 2.3 hrs | 0.92 |
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 ÷ 88,113 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. Livingston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Livingston 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/livingston-county