County annual report · FIPS 47157
2019 Shelby County, TN Power Outage Report
In 2019, customers in Shelby County, TN went without power for an average of 4.8 hours, a total of 2.0M customer-hours (Tennessee average 2.7 hours). That ranks 13th worst of 86 Tennessee counties and 1126th of 2,945 nationally.
Compared with TN, the US and 2018
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Shelby County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 20, 2019 09:45 | October 27, 2019 08:00 | 6d 22h | 35,329 | 646K |
| 2 | September 16, 2019 10:45 | September 19, 2019 10:30 | 2d 23h | 13,068 | 13K |
| 3 | June 20, 2019 05:45 | June 20, 2019 23:00 | 17h 15m | 12,703 | 11K |
| 4 | September 9, 2019 04:15 | September 13, 2019 08:00 | 4d 3h | 11,092 | 26K |
| 5 | November 18, 2019 10:15 | November 24, 2019 16:45 | 6d 6h | 10,326 | 13K |
| 6 | July 23, 2019 09:45 | July 25, 2019 10:45 | 2d 1h | 10,023 | 18K |
| 7 | August 18, 2019 17:00 | August 28, 2019 20:00 | 10d 3h | 9,875 | 52K |
| 8 | August 2, 2019 05:30 | August 2, 2019 11:00 | 5h 30m | 9,019 | 16K |
| 9 | June 22, 2019 15:15 | June 23, 2019 22:45 | 1d 7h | 8,667 | 17K |
| 10 | February 18, 2019 13:45 | February 21, 2019 09:30 | 2d 19h | 8,017 | 74K |
Outage episodes by size in 2019: 131 reached 100+ customers, 79 reached 1,000+ customers, 6 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 2019, 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 |
|---|---|---|---|---|---|
| City of Memphis - (TN) | 2018 | 5.3 hrs | 1.90 | 3.4 hrs | 1.69 |
| Southwest Tennessee E M C | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 73% of Tennessee's customers in 2019; 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, 2019, 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/2019/tennessee/shelby-county