County annual report · FIPS 37097
2021 Iredell County, NC Power Outage Report
In 2021, customers in Iredell County, NC went without power for an average of 5.4 hours, a total of 190K customer-hours (North Carolina average 10.3 hours). That ranks 48th worst of 94 North Carolina counties and 1252nd of 2,974 nationally.
Compared with NC, the US and 2020
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Iredell County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 18, 2021 12:00 | February 18, 2021 23:45 | 11h 45m | 4,667 | 13K |
| 2 | September 21, 2021 11:15 | September 21, 2021 16:45 | 5h 30m | 3,950 | 4,359 |
| 3 | May 3, 2021 13:30 | May 5, 2021 12:15 | 1d 22h | 2,870 | 35K |
| 4 | May 11, 2021 00:45 | May 11, 2021 09:45 | 9h | 2,496 | 8,280 |
| 5 | August 14, 2021 17:30 | August 15, 2021 21:45 | 1d 4h | 1,723 | 5,696 |
| 6 | December 6, 2021 13:15 | December 7, 2021 00:45 | 11h 30m | 1,513 | 642 |
| 7 | January 8, 2021 08:15 | January 8, 2021 11:15 | 3h | 1,466 | 3,810 |
| 8 | December 16, 2021 13:45 | December 16, 2021 18:15 | 4h 30m | 1,457 | 872 |
| 9 | June 14, 2021 21:15 | June 15, 2021 02:00 | 4h 45m | 1,440 | 3,156 |
| 10 | December 13, 2021 21:00 | December 14, 2021 09:00 | 12h | 1,420 | 5,149 |
Outage episodes by size in 2021: 100 reached 100+ customers, 19 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 Iredell County reported on EIA Form 861 for 2021, 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 Carolinas, LLC | 2021 | 3.5 hrs | 1.20 | 2.5 hrs | 1.10 |
| EnergyUnited Elec Member Corp | 2021 | 2.1 hrs | 1.04 | 84 min | 0.90 |
| City of Statesville - (NC) | 2021 | 62 min | 0.76 | - | - |
| Duke Energy | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 92% of North Carolina's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 35,197 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. Iredell County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Iredell County, NC annual power outage report, 2021, 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/2021/north-carolina/iredell-county