County annual report · FIPS 47157
2022 Shelby County, TN Power Outage Report
In 2022, customers in Shelby County, TN went without power for an average of 40.0 hours, a total of 16.9M customer-hours (Tennessee average 9.2 hours). That ranks 1st worst of 84 Tennessee counties and 109th of 2,976 nationally.
Compared with TN, the US and 2021
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Shelby County, 2022
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 3, 2022 11:00 | February 20, 2022 13:15 | 17d 2h | 137,794 | 13.0M |
| 2 | December 22, 2022 08:45 | December 28, 2022 11:30 | 6d 2h | 84,234 | 702K |
| 3 | March 28, 2022 12:15 | April 1, 2022 08:15 | 3d 20h | 18,356 | 121K |
| 4 | July 16, 2022 14:15 | July 22, 2022 05:45 | 5d 15h | 16,350 | 66K |
| 5 | September 22, 2022 02:15 | October 2, 2022 05:00 | 10d 2h | 12,219 | 174K |
| 6 | October 12, 2022 11:15 | October 17, 2022 10:45 | 4d 23h | 11,450 | 135K |
| 7 | July 27, 2022 11:30 | August 25, 2022 10:00 | 28d 22h | 10,278 | 350K |
| 8 | September 19, 2022 10:30 | September 22, 2022 01:15 | 2d 14h | 10,163 | 25K |
| 9 | April 10, 2022 16:30 | April 17, 2022 06:15 | 6d 13h | 9,737 | 148K |
| 10 | May 27, 2022 11:30 | June 12, 2022 09:45 | 15d 22h | 9,574 | 188K |
Outage episodes by size in 2022: 99 reached 100+ customers, 70 reached 1,000+ customers, 8 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 Shelby County reported on EIA Form 861 for 2022, 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 |
|---|---|---|---|---|---|
| Southwest Tennessee E M C | 2022 | 6.8 hrs | 5.35 | 2.7 hrs | 2.76 |
| City of Memphis - (TN) | 2022 | 14.4 hrs | 2.92 | 6.9 hrs | 2.27 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 75% of Tennessee's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 422,904 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. Shelby County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Shelby County, TN annual power outage report, 2022, 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/2022/tennessee/shelby-county