County annual report · FIPS 47037
2020 Davidson County, TN Power Outage Report
In 2020, customers in Davidson County, TN went without power for an average of 23.9 hours, a total of 8.6M customer-hours (Tennessee average 6.5 hours). That ranks 1st worst of 84 Tennessee counties and 360th of 3,019 nationally.
Compared with TN, the US and 2019
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Davidson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 4, 2020 16:45 | May 9, 2020 10:15 | 4d 17h | 132,893 | 3.5M |
| 2 | May 2, 2020 11:30 | May 4, 2020 10:30 | 1d 23h | 124,024 | 1.3M |
| 3 | May 4, 2020 12:45 | May 4, 2020 15:00 | 2h 15m | 94,768 | 208K |
| 4 | March 3, 2020 06:45 | March 18, 2020 03:30 | 14d 20h | 49,651 | 2.9M |
| 5 | August 3, 2020 12:00 | August 7, 2020 05:30 | 3d 17h | 18,254 | 16K |
| 6 | July 12, 2020 09:30 | July 14, 2020 05:45 | 1d 20h | 8,988 | 42K |
| 7 | July 24, 2020 11:30 | July 25, 2020 11:15 | 23h 45m | 8,974 | 5,121 |
| 8 | September 12, 2020 12:30 | September 15, 2020 04:00 | 2d 15h | 7,421 | 21K |
| 9 | February 25, 2020 08:15 | February 26, 2020 11:00 | 1d 2h | 7,271 | 3,965 |
| 10 | July 20, 2020 10:45 | July 23, 2020 11:00 | 3d | 6,537 | 19K |
Outage episodes by size in 2020: 170 reached 100+ customers, 88 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 Davidson County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Middle Tennessee E M C | 2020 | 4.0 hrs | 1.58 | 58 min | 1.05 |
| Nashville Electric Service | 2020 | 30.9 hrs | 2.52 | 1.7 hrs | 1.44 |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 359,052 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. Davidson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Davidson County, TN annual power outage report, 2020, 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/2020/tennessee/davidson-county