County annual report · FIPS 37081
2021 Guilford County, NC Power Outage Report
In 2021, customers in Guilford County, NC went without power for an average of 57.1 hours, a total of 2.4M customer-hours (North Carolina average 10.3 hours). That ranks 10th worst of 94 North Carolina counties and 153rd 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 Guilford 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 13, 2021 07:45 | February 17, 2021 06:00 | 3d 22h | 78,544 | 1.8M |
| 2 | January 13, 2021 12:45 | January 14, 2021 04:30 | 15h 45m | 17,168 | 22K |
| 3 | February 12, 2021 13:15 | February 13, 2021 04:00 | 14h 45m | 7,982 | 6,730 |
| 4 | July 4, 2021 05:30 | July 4, 2021 21:00 | 15h 30m | 7,046 | 45K |
| 5 | September 22, 2021 07:45 | September 23, 2021 08:15 | 1d | 6,239 | 2,908 |
| 6 | October 23, 2021 11:45 | October 23, 2021 18:15 | 6h 30m | 6,112 | 9,182 |
| 7 | May 10, 2021 11:15 | May 12, 2021 02:45 | 1d 15h | 5,941 | 35K |
| 8 | March 24, 2021 11:45 | March 25, 2021 09:15 | 21h 30m | 5,094 | 17K |
| 9 | June 23, 2021 11:45 | June 25, 2021 01:45 | 1d 14h | 4,276 | 20K |
| 10 | January 21, 2021 05:30 | January 22, 2021 02:30 | 21h | 3,982 | 12K |
Outage episodes by size in 2021: 168 reached 100+ customers, 50 reached 1,000+ customers, 2 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 Guilford 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 Progress - (NC) | 2021 | 3.1 hrs | 1.39 | 2.4 hrs | 1.34 |
| 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 |
| Town of High Point | 2021 | 4.9 hrs | 1.89 | 1.7 hrs | 1.09 |
| 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 ÷ 41,756 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. Guilford County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Guilford 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/guilford-county