Southwestern Electric Coop Inc - (IL)

What This Utility Data Tells You

Southwestern Electric Coop Inc - (IL) is a member-owned electric cooperative operating in Illinois under EIA identifier 17697. It reports service to approximately 25,140 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 51 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.

In 2023, the average Southwestern Electric Coop Inc - (IL) customer experienced 374.5 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. The SAIFI figure, which tracks average outage events per customer, came in at 2.74 for the same period, meaning customers statistically saw about 3 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 258.6 minutes, the gap between that figure and the headline 374.5 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Southwestern Electric Coop Inc - (IL), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that span, SAIDI rose from 201.5 to 374.5 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.