Duke Energy Indiana, LLC

What This Utility Data Tells You

Duke Energy Indiana, LLC is an investor-owned utility operating in Indiana under EIA identifier 15470. It reports service to approximately 894,157 customer accounts and generated about $2.93 billion in annual electric revenue, with a service footprint spanning 428 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 Indiana, LLC customer experienced 644.8 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. SAIFI, the average number of outage events per customer, was 1.48 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 98.0 minutes, and the spread against the headline 644.8 indicates how much weather, versus routine infrastructure, drove the outage total.

With 4 consecutive years of EIA data (2020–2023), Duke Energy Indiana, LLC's reliability record can be judged on trend rather than one isolated year. SAIDI has increased from 278.7 to 644.8 minutes, which may reflect either worsening weather exposure or delayed grid modernization.