County annual report · FIPS 37101
2017 Johnston County, NC Power Outage Report
In 2017, customers in Johnston County, NC went without power for an average of 10.6 hours, a total of 147K customer-hours (North Carolina average 10.0 hours). That ranks 33rd worst of 94 North Carolina counties and 513th of 2,786 nationally.
Compared with NC, the US and 2016
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Johnston County, 2017
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 23, 2017 18:45 | August 24, 2017 13:15 | 18h 30m | 3,460 | 4,387 |
| 2 | April 18, 2017 09:15 | April 18, 2017 17:45 | 8h 30m | 2,829 | 2,136 |
| 3 | May 4, 2017 13:45 | May 4, 2017 22:15 | 8h 30m | 2,788 | 837 |
| 4 | February 10, 2017 06:45 | February 10, 2017 13:00 | 6h 15m | 2,536 | 7,633 |
| 5 | July 28, 2017 18:45 | July 28, 2017 22:00 | 3h 15m | 2,440 | 1,514 |
| 6 | September 12, 2017 18:15 | September 12, 2017 21:00 | 2h 45m | 2,419 | 2,163 |
| 7 | May 5, 2017 06:45 | May 5, 2017 22:30 | 15h 45m | 2,379 | 5,034 |
| 8 | June 4, 2017 19:45 | June 6, 2017 00:30 | 1d 4h | 2,318 | 5,186 |
| 9 | June 16, 2017 23:45 | June 17, 2017 03:00 | 3h 15m | 2,185 | 2,581 |
| 10 | May 10, 2017 03:30 | May 10, 2017 06:00 | 2h 30m | 1,915 | 3,830 |
Outage episodes by size in 2017: 105 reached 100+ customers, 23 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 Johnston County reported on EIA Form 861 for 2017, 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 |
|---|---|---|---|---|---|
| Duke Energy Progress - (NC) | 2017 | 3.2 hrs | 1.52 | 2.7 hrs | 1.47 |
| City of Wilson - (NC) | 2017 | 36 min | 0.54 | 30 min | 0.47 |
| Wake Electric Membership Corp | 2017 | 87 min | 1.47 | 73 min | 1.30 |
| Duke Energy | - | - | - | - | - |
| Tri-County Elec Member Corp (NC) | - | - | - | - | - |
| South River Elec Member Corp | - | - | - | - | - |
| Town of Benson - (NC) | - | - | - | - | - |
| Town of Clayton - (NC) | - | - | - | - | - |
| Town of Selma - (NC) | - | - | - | - | - |
| Town of Smithfield - (NC) | - | - | - | - | - |
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 North Carolina's customers in 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,828 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. Johnston County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnston County, NC annual power outage report, 2017, 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/2017/north-carolina/johnston-county