County annual report · FIPS 47157
2015 Shelby County, TN Power Outage Report
In 2015, customers in Shelby County, TN went without power for an average of 6.3 hours, a total of 2.7M customer-hours (Tennessee average 2.4 hours). That ranks 5th worst of 50 Tennessee counties and 431st of 2,484 nationally.
Compared with TN, the US
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Shelby County, 2015
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 5, 2015 04:30 | August 11, 2015 10:45 | 6d 6h | 38,123 | 869K |
| 2 | July 12, 2015 10:30 | July 18, 2015 10:00 | 5d 23h | 27,678 | 286K |
| 3 | November 14, 2015 13:00 | November 18, 2015 15:00 | 4d 2h | 14,633 | 169K |
| 4 | June 7, 2015 15:45 | June 19, 2015 00:00 | 11d 8h | 12,889 | 106K |
| 5 | July 20, 2015 09:30 | July 26, 2015 14:00 | 6d 4h | 10,857 | 64K |
| 6 | May 9, 2015 11:00 | May 11, 2015 06:15 | 1d 19h | 9,770 | 23K |
| 7 | November 27, 2015 20:30 | December 2, 2015 09:30 | 4d 13h | 9,519 | 55K |
| 8 | December 28, 2015 02:00 | December 29, 2015 07:15 | 1d 5h | 8,692 | 40K |
| 9 | August 23, 2015 16:45 | August 26, 2015 08:30 | 2d 15h | 6,798 | 16K |
| 10 | January 7, 2015 23:30 | January 9, 2015 22:15 | 1d 22h | 6,617 | 8,547 |
Outage episodes by size in 2015: 221 reached 100+ customers, 104 reached 1,000+ customers, 5 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 2015, 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) | 2015 | 4.3 hrs | 1.68 | 2.7 hrs | 1.40 |
| 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 n/a of Tennessee's customers in 2015; 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, 2015, 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/2015/tennessee/shelby-county