Duke Energy Carolinas, LLC

What This Utility Data Tells You

Duke Energy Carolinas, LLC is an investor-owned utility operating in North Carolina under EIA identifier 5416. It reports service to approximately 2,186,570 customer accounts and generated about $5.39 billion in annual electric revenue, with a service footprint spanning 500 ZIP codes. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.

In 2023, the average Duke Energy Carolinas, LLC customer experienced 342.7 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). That falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. SAIFI, the average number of outage events per customer, was 1.61 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 197.1 minutes; the difference from the headline 342.7 shows how much of the outage total came from weather rather than everyday grid issues.

Duke Energy Carolinas, LLC has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI has improved from 520.4 to 342.7 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.