County annual report · FIPS 37037
2019 Chatham County, NC Power Outage Report
In 2019, customers in Chatham County, NC went without power for an average of 33.2 hours, a total of 126K customer-hours (North Carolina average 12.9 hours). That ranks 17th worst of 94 North Carolina counties and 99th of 2,945 nationally.
Compared with NC, the US and 2018
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 19, 2019 17:00 | December 19, 2019 20:45 | 3h 45m | 9,794 | 2,483 |
| 2 | May 31, 2019 22:00 | June 1, 2019 17:45 | 19h 45m | 4,606 | 7,721 |
| 3 | April 8, 2019 20:45 | April 9, 2019 23:00 | 1d 2h | 4,487 | 8,362 |
| 4 | June 20, 2019 15:15 | June 22, 2019 01:30 | 1d 10h | 4,396 | 28K |
| 5 | July 23, 2019 18:15 | July 24, 2019 07:30 | 13h 15m | 2,683 | 7,110 |
| 6 | May 31, 2019 16:30 | May 31, 2019 19:30 | 3h | 2,283 | 836 |
| 7 | July 15, 2019 21:15 | July 15, 2019 23:45 | 2h 30m | 2,005 | 3,574 |
| 8 | May 13, 2019 14:00 | May 14, 2019 00:45 | 10h 45m | 1,614 | 2,719 |
| 9 | April 19, 2019 15:15 | April 21, 2019 01:45 | 1d 10h | 1,368 | 13K |
| 10 | September 26, 2019 15:30 | September 26, 2019 20:45 | 5h 15m | 1,212 | 314 |
Outage episodes by size in 2019: 62 reached 100+ customers, 15 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 2019, 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) | 2018 | 43.0 hrs | 2.71 | 2.6 hrs | 1.33 |
| Duke Energy Carolinas, LLC | 2018 | 13.1 hrs | 1.81 | 3.7 hrs | 1.19 |
| Piedmont Electric Member Corp | 2018 | 30.8 hrs | 2.81 | 2.5 hrs | 1.26 |
| Central Electric Membership Corp. - (NC) | 2018 | 22.4 hrs | - | 5.6 hrs | - |
| Randolph Electric Member Corp | 2018 | 15.9 hrs | 4.10 | 2.2 hrs | 1.50 |
| 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 90% of North Carolina's customers in 2019; 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, 2019, 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/2019/north-carolina/chatham-county