Duke Energy Carolinas, LLC: Outages & Reliability
As of October 7, 2026 09:00 UTC, about 127 Duke Energy Carolinas, LLC customers are without power in 6 counties.
Duke Energy Carolinas, LLC is an investor owned utility serving 63 counties in North Carolina and South Carolina. In 2024, its customers went an average of 78.6 hours without power (SAIDI), across about 2.5 interruptions each. That ranks it #457 of 468 US utilities by reliability, where #1 is the most reliable. Its outage duration is worse than the US average and worse than the North Carolina median (25.3 h).
Official reliability (EIA 2024)
US EIARanks #457 of 468 US utilities by reliability (#1 = most reliable) · worse than the North Carolina median (25.3 h).
Reliability over time
Official EIA SAIDI, hours without power per customer per year (IEEE, incl. major events). Over this period Duke Energy Carolinas, LLC’s reliability has been worsening (lower is better).
Counties served by Duke Energy Carolinas, LLC (63)
Service territory reported to EIA-861; each links to live outage status and history.
- Alamance County, NC
- Alexander County, NC
- Anson County, NC
- Buncombe County, NC
- Burke County, NC
- Cabarrus County, NC
- Caldwell County, NC
- Caswell County, NC
- Catawba County, NC
- Chatham County, NC
- Cherokee County, NC
- Clay County, NC
- Cleveland County, NC
- Davidson County, NC
- Davie County, NC
- Durham County, NC
- Forsyth County, NC
- Gaston County, NC
- Graham County, NC
- Granville County, NC
- Guilford County, NC
- Henderson County, NC
- Iredell County, NC
- Jackson County, NC
- Lincoln County, NC
- Macon County, NC
- McDowell County, NC
- Mecklenburg County, NC
- Orange County, NC
- Person County, NC
- Polk County, NC
- Randolph County, NC
- Rockingham County, NC
- Rowan County, NC
- Rutherford County, NC
- Stanly County, NC
- Stokes County, NC
- Surry County, NC
- Swain County, NC
- Transylvania County, NC
- Union County, NC
- Wake County, NC
- Wilkes County, NC
- Yadkin County, NC
- Abbeville County, SC
- Anderson County, SC
- Cherokee County, SC
- Chester County, SC
- Edgefield County, SC
- Fairfield County, SC
- Greenville County, SC
- Greenwood County, SC
- Kershaw County, SC
- Lancaster County, SC
- Laurens County, SC
- McCormick County, SC
- Newberry County, SC
- Oconee County, SC
- Pickens County, SC
- Saluda County, SC
- Spartanburg County, SC
- Union County, SC
- York County, SC
Duke Energy Carolinas, LLC: FAQ
- How reliable is Duke Energy Carolinas, LLC?
- Duke Energy Carolinas, LLC customers averaged 78.6 hours without power in 2024 (SAIDI), which is frequently affected and worse than the US average, worse than the North Carolina median (25.3 h), per official US EIA data.
- Where does Duke Energy Carolinas, LLC rank among US electric utilities?
- By official EIA SAIDI, Duke Energy Carolinas, LLC is #457 of 468 US utilities by reliability that report reliability and serve at least three counties, #1 being the most reliable. Overall it is worse than the US average.
- How many customers does Duke Energy Carolinas, LLC serve?
- Duke Energy Carolinas, LLC serves 63 counties across North Carolina and South Carolina, per its EIA-861 service territory filing.
- Where does Duke Energy Carolinas, LLC provide power?
- Duke Energy Carolinas, LLC operates in North Carolina, South Carolina. The full list of counties served is below, each linked to its live outage status.
Reliability metrics (SAIDI/SAIFI) and service territory from the US EIA Form 861. SAIDI/SAIFI are IEEE-standard, including major event days. Primary state: North Carolina.
Data from EIA Form 861 (utility reliability) and DOE/ORNL ODIN, every source we read. Live data as of .