County annual report · FIPS 37037
2020 Chatham County, NC Power Outage Report
In 2020, customers in Chatham County, NC went without power for an average of 141.9 hours, a total of 539K customer-hours (North Carolina average 20.3 hours). That ranks 4th worst of 94 North Carolina counties and 35th of 3,019 nationally.
Compared with NC, the US and 2019
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 28, 2020 12:15 | October 29, 2020 12:00 | 23h 45m | 17,868 | 64K |
| 2 | October 29, 2020 12:45 | October 31, 2020 03:30 | 1d 14h | 11,812 | 89K |
| 3 | February 6, 2020 14:45 | February 8, 2020 22:45 | 2d 8h | 6,081 | 52K |
| 4 | July 30, 2020 16:30 | July 30, 2020 21:30 | 5h | 6,016 | 4,534 |
| 5 | April 13, 2020 07:15 | April 14, 2020 22:45 | 1d 15h | 5,516 | 16K |
| 6 | August 9, 2020 17:15 | August 10, 2020 06:15 | 13h | 3,339 | 4,578 |
| 7 | November 13, 2020 12:00 | November 16, 2020 23:00 | 3d 11h | 2,831 | 33K |
| 8 | January 10, 2020 15:30 | January 10, 2020 19:15 | 3h 45m | 2,570 | 3,225 |
| 9 | November 18, 2020 14:00 | November 18, 2020 22:15 | 8h 15m | 2,513 | 6,003 |
| 10 | February 20, 2020 23:45 | February 21, 2020 22:15 | 22h 30m | 2,428 | 13K |
Outage episodes by size in 2020: 126 reached 100+ customers, 30 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 Chatham County reported on EIA Form 861 for 2020, 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) | 2020 | 5.2 hrs | 1.81 | 2.3 hrs | 1.37 |
| Duke Energy Carolinas, LLC | 2020 | 11.2 hrs | 1.71 | 3.1 hrs | 1.18 |
| Piedmont Electric Member Corp | 2020 | 3.4 hrs | 1.37 | 2.0 hrs | 1.07 |
| Central Electric Membership Corp. - (NC) | 2020 | 4.4 hrs | - | 1.8 hrs | - |
| Randolph Electric Member Corp | 2020 | 3.3 hrs | 2.06 | 1.6 hrs | 1.46 |
| 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 91% of North Carolina's customers in 2020; 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, 2020, 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/2020/north-carolina/chatham-county