County annual report · FIPS 37037
2025 Chatham County, NC Power Outage Report
In 2025, customers in Chatham County, NC went without power for an average of 96.4 hours, a total of 366K customer-hours (North Carolina average 9.8 hours). That ranks 4th worst of 94 North Carolina counties and 31st of 3,000 nationally.
Compared with NC, the US and 2024
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 6, 2025 17:15 | July 9, 2025 02:15 | 2d 9h | 8,540 | 135K |
| 2 | July 19, 2025 17:45 | July 21, 2025 06:30 | 1d 12h | 6,785 | 12K |
| 3 | July 21, 2025 13:15 | July 22, 2025 07:30 | 18h 15m | 5,536 | 6,627 |
| 4 | February 16, 2025 13:30 | February 17, 2025 04:45 | 15h 15m | 4,361 | 9,884 |
| 5 | May 4, 2025 02:45 | May 4, 2025 17:00 | 14h 15m | 4,287 | 16K |
| 6 | August 14, 2025 13:15 | August 15, 2025 00:00 | 10h 45m | 3,613 | 1,433 |
| 7 | June 24, 2025 20:15 | June 25, 2025 06:15 | 10h | 2,507 | 5,784 |
| 8 | December 19, 2025 08:15 | December 19, 2025 20:00 | 11h 45m | 2,131 | 4,529 |
| 9 | September 24, 2025 13:00 | September 25, 2025 01:00 | 12h | 2,124 | 1,651 |
| 10 | November 6, 2025 13:15 | November 6, 2025 18:15 | 5h | 2,105 | 666 |
Outage episodes by size in 2025: 124 reached 100+ customers, 29 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 2025, 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) | 2024 | 17.2 hrs | 1.70 | 2.2 hrs | 1.22 |
| Duke Energy Carolinas, LLC | 2024 | 78.6 hrs | 2.50 | 2.9 hrs | 1.26 |
| Piedmont Electric Member Corp | 2024 | 6.6 hrs | 2.20 | 2.8 hrs | 1.50 |
| Central Electric Membership Corp. - (NC) | 2024 | 7.4 hrs | - | 2.5 hrs | - |
| Randolph Electric Member Corp | 2024 | 3.7 hrs | 2.08 | 1.9 hrs | 1.37 |
| 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 2025; 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, 2025, 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/2025/north-carolina/chatham-county