Southern Indiana Gas & Elec Co

What This Utility Data Tells You

Southern Indiana Gas & Elec Co is an investor-owned utility operating in Indiana under EIA identifier 17633. It reports service to approximately 151,780 customer accounts and generated about $0.57 billion in annual electric revenue, with a service footprint spanning 73 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 Southern Indiana Gas & Elec Co customer experienced 450.5 minutes of power interruptions, a metric called SAIDI (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. The SAIFI figure, which tracks average outage events per customer, came in at 1.57 for the same period, meaning customers statistically saw about 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 79.8 minutes, the gap between that figure and the headline 450.5 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Southern Indiana Gas & Elec Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI climbed from 121.9 to 450.5 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.