County annual report · FIPS 37037
2017 Chatham County, NC Power Outage Report
In 2017, customers in Chatham County, NC went without power for an average of 27.8 hours, a total of 106K customer-hours (North Carolina average 10.0 hours). That ranks 18th worst of 94 North Carolina counties and 190th of 2,786 nationally.
Compared with NC, the US and 2016
Coverage line is EAGLE-I's share of North Carolina customers tracked each year.
Biggest outages in Chatham County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 26, 2017 15:15 | January 27, 2017 02:00 | 10h 45m | 3,370 | 6,880 |
| 2 | May 5, 2017 06:30 | May 5, 2017 21:00 | 14h 30m | 2,259 | 6,633 |
| 3 | September 1, 2017 17:15 | September 2, 2017 08:15 | 15h | 1,785 | 3,635 |
| 4 | April 6, 2017 11:15 | April 7, 2017 02:00 | 14h 45m | 1,702 | 4,825 |
| 5 | April 7, 2017 15:00 | April 8, 2017 03:30 | 12h 30m | 1,636 | 1,359 |
| 6 | May 25, 2017 07:15 | May 26, 2017 00:15 | 17h | 1,484 | 2,062 |
| 7 | April 25, 2017 09:15 | April 25, 2017 17:15 | 8h | 1,386 | 2,201 |
| 8 | June 21, 2017 22:15 | June 22, 2017 06:30 | 8h 15m | 1,377 | 1,281 |
| 9 | June 5, 2017 10:15 | June 5, 2017 18:45 | 8h 30m | 1,305 | 4,248 |
| 10 | February 15, 2017 14:15 | February 15, 2017 21:00 | 6h 45m | 1,284 | 407 |
Outage episodes by size in 2017: 87 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 2017, 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) | 2017 | 3.2 hrs | 1.52 | 2.7 hrs | 1.47 |
| Duke Energy Carolinas, LLC | 2017 | 8.8 hrs | 1.52 | 3.1 hrs | 1.11 |
| Piedmont Electric Member Corp | 2017 | 1.8 hrs | 1.14 | 1.8 hrs | 1.14 |
| Central Electric Membership Corp. - (NC) | 2017 | 3.1 hrs | - | 3.0 hrs | - |
| Randolph Electric Member Corp | 2017 | 2.6 hrs | 1.77 | 1.9 hrs | 1.57 |
| 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 2017; 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, 2017, 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/2017/north-carolina/chatham-county