County annual report · FIPS 37101
2018 Johnston County, NC Power Outage Report
In 2018, customers in Johnston County, NC went without power for an average of 101.2 hours, a total of 1.4M customer-hours (North Carolina average 55.2 hours). That ranks 19th worst of 94 North Carolina counties and 47th of 2,798 nationally.
Compared with NC, the US and 2017
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Johnston County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 15, 2018 04:00 | September 20, 2018 06:00 | 5d 2h | 28,356 | 770K |
| 2 | September 13, 2018 17:15 | September 14, 2018 21:45 | 1d 4h | 20,248 | 165K |
| 3 | October 11, 2018 16:30 | October 14, 2018 02:00 | 2d 9h | 14,853 | 116K |
| 4 | May 20, 2018 01:30 | May 20, 2018 07:30 | 6h | 7,494 | 45K |
| 5 | April 15, 2018 15:15 | April 17, 2018 03:15 | 1d 12h | 6,818 | 34K |
| 6 | August 8, 2018 22:45 | August 9, 2018 18:45 | 20h | 6,328 | 16K |
| 7 | June 11, 2018 07:15 | June 12, 2018 06:30 | 23h 15m | 5,369 | 16K |
| 8 | November 17, 2018 19:30 | November 18, 2018 09:15 | 13h 45m | 2,753 | 15K |
| 9 | February 20, 2018 11:15 | February 20, 2018 21:15 | 10h | 2,593 | 3,589 |
| 10 | January 1, 2018 09:00 | January 2, 2018 06:30 | 21h 30m | 2,510 | 22K |
Outage episodes by size in 2018: 116 reached 100+ customers, 31 reached 1,000+ customers, 3 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 2018, 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) | 2018 | 43.0 hrs | 2.71 | 2.6 hrs | 1.33 |
| City of Wilson - (NC) | 2018 | 40 min | 0.70 | 32 min | 0.60 |
| Tri-County Elec Member Corp (NC) | 2018 | 51.3 hrs | 2.31 | - | - |
| Wake Electric Membership Corp | 2018 | 4.7 hrs | 1.98 | 73 min | 1.10 |
| Duke Energy | - | - | - | - | - |
| 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 82% of North Carolina's customers in 2018; 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, 2018, 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/2018/north-carolina/johnston-county