County annual report · FIPS 47057
2016 Grainger County, TN Power Outage Report
In 2016, customers in Grainger County, TN went without power for an average of 1.5 hours, a total of 18K customer-hours (Tennessee average 2.5 hours). That ranks 16th worst of 51 Tennessee counties and 1555th of 2,391 nationally.
Compared with TN, the US and 2015
Coverage line is EAGLE-I's share of Tennessee customers tracked each year.
Biggest outages in Grainger County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 18, 2016 06:30 | December 19, 2016 02:45 | 20h 15m | 497 | 3,522 |
| 2 | February 24, 2016 13:45 | February 25, 2016 09:15 | 19h 30m | 440 | 3,623 |
| 3 | May 6, 2016 22:00 | May 6, 2016 22:15 | 15m | 411 | 103 |
| 4 | September 26, 2016 22:45 | September 27, 2016 01:30 | 2h 45m | 318 | 110 |
| 5 | December 6, 2016 13:45 | December 6, 2016 22:15 | 8h 30m | 204 | 153 |
| 6 | August 28, 2016 20:15 | August 29, 2016 10:45 | 14h 30m | 188 | 836 |
| 7 | June 5, 2016 07:00 | June 5, 2016 14:45 | 7h 45m | 187 | 1,442 |
| 8 | December 19, 2016 05:00 | December 19, 2016 08:30 | 3h 30m | 90 | 315 |
| 9 | February 29, 2016 14:45 | February 29, 2016 16:15 | 1h 30m | 86 | 129 |
| 10 | April 24, 2016 23:45 | April 25, 2016 02:00 | 2h 15m | 85 | 128 |
Outage episodes by size in 2016: 7 reached 100+ customers, 0 reached 1,000+ customers, 0 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 Grainger County reported on EIA Form 861 for 2016, 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 |
|---|---|---|---|---|---|
| Powell Valley Electric Coop | 2016 | 2.6 hrs | 1.81 | 1.8 hrs | 1.60 |
| Knoxville Utilities Board | 2015 | 3.5 hrs | 1.60 | 2.0 hrs | 1.44 |
| Appalachian Electric Coop | 2016 | 3.4 hrs | 2.54 | 2.4 hrs | 2.19 |
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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 12,567 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. Grainger County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Grainger County, TN annual power outage report, 2016, 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/2016/tennessee/grainger-county