County annual report · FIPS 37037
2023 Chatham County, NC Power Outage Report
In 2023, customers in Chatham County, NC went without power for an average of 68.5 hours, a total of 260K customer-hours (North Carolina average 12.6 hours). That ranks 9th worst of 94 North Carolina counties and 57th of 2,977 nationally.
Compared with NC, the US and 2022
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 15, 2023 14:00 | August 17, 2023 03:15 | 1d 13h | 5,945 | 8,207 |
| 2 | July 1, 2023 00:45 | July 2, 2023 10:45 | 1d 10h | 5,710 | 37K |
| 3 | August 7, 2023 17:45 | August 9, 2023 04:15 | 1d 10h | 4,755 | 28K |
| 4 | July 9, 2023 17:00 | July 10, 2023 04:00 | 11h | 4,580 | 16K |
| 5 | September 19, 2023 18:15 | September 20, 2023 03:15 | 9h | 3,740 | 1,917 |
| 6 | April 7, 2023 09:15 | April 8, 2023 14:00 | 1d 4h | 3,726 | 17K |
| 7 | September 9, 2023 11:15 | September 10, 2023 11:15 | 1d | 2,480 | 12K |
| 8 | December 17, 2023 21:45 | December 18, 2023 21:30 | 23h 45m | 2,190 | 9,251 |
| 9 | August 10, 2023 13:00 | August 11, 2023 04:15 | 15h 15m | 2,042 | 3,549 |
| 10 | April 1, 2023 13:30 | April 1, 2023 20:00 | 6h 30m | 2,022 | 1,109 |
Outage episodes by size in 2023: 102 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 Chatham County reported on EIA Form 861 for 2023, 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) | 2023 | 3.7 hrs | 1.47 | 2.4 hrs | 1.22 |
| Duke Energy Carolinas, LLC | 2023 | 5.0 hrs | 1.68 | 3.3 hrs | 1.52 |
| Piedmont Electric Member Corp | 2023 | 3.5 hrs | 1.86 | 2.8 hrs | 1.77 |
| Central Electric Membership Corp. - (NC) | 2023 | 5.3 hrs | - | 2.7 hrs | - |
| Randolph Electric Member Corp | 2023 | 4.5 hrs | 2.74 | 2.1 hrs | 2.29 |
| 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 n/a of North Carolina's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,797 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. Chatham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Chatham County, NC annual power outage report, 2023, 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/2023/north-carolina/chatham-county