County annual report · FIPS 37025
2021 Cabarrus County, NC Power Outage Report
In 2021, customers in Cabarrus County, NC went without power for an average of 9.7 hours, a total of 351K customer-hours (North Carolina average 10.3 hours). That ranks 34th worst of 94 North Carolina counties and 797th 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 Cabarrus 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 | April 6, 2021 23:45 | April 7, 2021 02:45 | 3h | 10,143 | 22K |
| 2 | September 21, 2021 04:45 | September 21, 2021 11:30 | 6h 45m | 6,611 | 9,675 |
| 3 | April 19, 2021 20:45 | April 20, 2021 11:00 | 14h 15m | 6,104 | 3,398 |
| 4 | August 13, 2021 14:30 | August 17, 2021 00:00 | 3d 9h | 5,852 | 21K |
| 5 | July 26, 2021 18:45 | July 27, 2021 17:30 | 22h 45m | 3,326 | 7,586 |
| 6 | July 18, 2021 21:30 | July 19, 2021 05:00 | 7h 30m | 3,183 | 9,673 |
| 7 | July 8, 2021 14:15 | July 12, 2021 21:30 | 4d 7h | 2,786 | 13K |
| 8 | January 13, 2021 12:45 | January 13, 2021 14:45 | 2h | 2,769 | 2,512 |
| 9 | May 3, 2021 12:15 | May 5, 2021 12:15 | 2d | 2,617 | 12K |
| 10 | December 8, 2021 01:15 | December 8, 2021 12:30 | 11h 15m | 2,434 | 3,131 |
Outage episodes by size in 2021: 96 reached 100+ customers, 31 reached 1,000+ customers, 1 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 Cabarrus 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 |
| Union Electric Membership Corp - (NC) | 2021 | 80 min | 0.94 | 62 min | 0.74 |
| City of Concord - (NC) | 2021 | 2.2 hrs | 1.14 | 23 min | 0.43 |
| Virginia Electric & Power Co | - | - | - | - | - |
| 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 ÷ 36,290 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. Cabarrus County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cabarrus 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/cabarrus-county