County annual report · FIPS 37037
2015 Chatham County, NC Power Outage Report
In 2015, customers in Chatham County, NC went without power for an average of 93.3 hours, a total of 354K customer-hours (North Carolina average 7.5 hours). That ranks 5th worst of 93 North Carolina counties and 17th of 2,484 nationally.
Compared with NC, the US
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 26, 2015 03:30 | February 28, 2015 05:00 | 2d 1h | 13,351 | 211K |
| 2 | June 26, 2015 22:00 | June 28, 2015 21:30 | 1d 23h | 3,606 | 29K |
| 3 | July 5, 2015 22:45 | July 7, 2015 01:30 | 1d 2h | 3,431 | 7,299 |
| 4 | February 15, 2015 01:30 | February 16, 2015 00:45 | 23h 15m | 2,259 | 22K |
| 5 | September 25, 2015 23:00 | September 25, 2015 23:30 | 30m | 2,019 | 1,010 |
| 6 | March 16, 2015 20:00 | March 16, 2015 22:45 | 2h 45m | 1,999 | 1,436 |
| 7 | October 11, 2015 15:00 | October 11, 2015 16:00 | 1h | 1,775 | 954 |
| 8 | February 2, 2015 18:00 | February 3, 2015 03:15 | 9h 15m | 1,664 | 3,386 |
| 9 | June 25, 2015 09:15 | June 25, 2015 17:15 | 8h | 1,462 | 2,004 |
| 10 | July 18, 2015 00:45 | July 18, 2015 01:45 | 1h | 1,435 | 1,435 |
Outage episodes by size in 2015: 82 reached 100+ customers, 18 reached 1,000+ customers, 1 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 2015, 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) | 2015 | 4.8 hrs | 1.90 | 3.0 hrs | 1.65 |
| Duke Energy Carolinas, LLC | 2015 | 5.3 hrs | 1.29 | 2.6 hrs | 1.02 |
| Piedmont Electric Member Corp | 2015 | 5.2 hrs | 1.81 | 1.7 hrs | 1.13 |
| Central Electric Membership Corp. - (NC) | 2015 | 3.6 hrs | - | 2.6 hrs | - |
| Randolph Electric Member Corp | 2015 | 2.8 hrs | 1.93 | 2.2 hrs | 1.55 |
| 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 2015; 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, 2015, 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/2015/north-carolina/chatham-county