County annual report · FIPS 47157
2024 Shelby County, TN Power Outage Report
In 2024, customers in Shelby County, TN went without power for an average of 7.0 hours, a total of 3.0M customer-hours (Tennessee average 4.8 hours). That ranks 23rd worst of 84 Tennessee counties and 1251st of 2,990 nationally.
Compared with TN, the US and 2023
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Shelby County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 1, 2024 11:00 | April 5, 2024 09:15 | 3d 22h | 37,718 | 87K |
| 2 | September 11, 2024 10:45 | September 19, 2024 06:15 | 7d 19h | 24,582 | 403K |
| 3 | December 1, 2024 19:45 | December 3, 2024 06:45 | 1d 11h | 20,913 | 28K |
| 4 | April 5, 2024 11:15 | April 9, 2024 04:45 | 3d 17h | 15,093 | 59K |
| 5 | May 15, 2024 12:00 | May 20, 2024 11:00 | 4d 23h | 13,246 | 40K |
| 6 | April 15, 2024 12:30 | April 19, 2024 07:00 | 3d 18h | 11,756 | 26K |
| 7 | September 19, 2024 10:30 | October 2, 2024 03:30 | 12d 17h | 10,519 | 111K |
| 8 | December 12, 2024 09:45 | December 14, 2024 07:00 | 1d 21h | 10,198 | 11K |
| 9 | May 24, 2024 09:15 | May 30, 2024 10:15 | 6d 1h | 9,812 | 138K |
| 10 | February 1, 2024 05:15 | February 6, 2024 11:30 | 5d 6h | 9,536 | 58K |
Outage episodes by size in 2024: 133 reached 100+ customers, 86 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 2024, 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 | 2023 | 11.7 hrs | 3.98 | 3.9 hrs | 2.67 |
| City of Memphis - (TN) | 2024 | 5.5 hrs | 1.95 | 4.7 hrs | 1.74 |
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 Tennessee's customers in 2024; 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, 2024, 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/2024/tennessee/shelby-county