AES Indiana

What This Utility Data Tells You

AES Indiana is an investor-owned utility operating in Indiana under EIA identifier 9273. It reports service to approximately 523,392 customer accounts and generated about $1.52 billion in annual electric revenue, with a service footprint spanning 82 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 AES Indiana customer experienced 466.8 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. Over the same period, SAIFI (outage events per customer) was 1.38, putting the typical customer at roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 86.7 minutes; the difference from the headline 466.8 shows how much of the outage total came from weather rather than everyday grid issues.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for AES Indiana, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 154.7 to 466.8 minutes, which may reflect either worsening weather exposure or delayed grid modernization.