County annual report · FIPS 37171
2021 Surry County, NC Power Outage Report
In 2021, customers in Surry County, NC went without power for an average of 8.4 hours, a total of 91K customer-hours (North Carolina average 10.3 hours). That ranks 38th worst of 94 North Carolina counties and 908th 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 Surry 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 | March 11, 2021 15:15 | March 11, 2021 17:15 | 2h | 4,104 | 1,028 |
| 2 | December 11, 2021 13:45 | December 12, 2021 00:15 | 10h 30m | 3,094 | 4,003 |
| 3 | July 28, 2021 00:45 | July 28, 2021 21:45 | 21h | 2,820 | 13K |
| 4 | June 24, 2021 11:15 | June 24, 2021 18:45 | 7h 30m | 2,687 | 6,477 |
| 5 | January 15, 2021 05:30 | January 15, 2021 10:30 | 5h | 2,613 | 5,871 |
| 6 | August 11, 2021 17:00 | August 11, 2021 21:30 | 4h 30m | 2,492 | 4,497 |
| 7 | May 29, 2021 01:30 | May 29, 2021 09:30 | 8h | 1,866 | 3,191 |
| 8 | June 11, 2021 05:15 | June 11, 2021 14:30 | 9h 15m | 1,846 | 5,875 |
| 9 | February 15, 2021 23:00 | February 16, 2021 08:30 | 9h 30m | 1,321 | 2,225 |
| 10 | February 22, 2021 20:00 | February 22, 2021 22:00 | 2h | 1,161 | 1,162 |
Outage episodes by size in 2021: 53 reached 100+ customers, 10 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 Surry 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 |
| Surry-Yadkin Elec Member Corp | 2021 | 4.4 hrs | 1.78 | 2.8 hrs | 0.78 |
| 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 ÷ 10,853 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. Surry County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Surry 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/surry-county