Tri-County Electric Coop, Inc (IL)

What This Utility Data Tells You

Tri-County Electric Coop, Inc (IL) is a member-owned electric cooperative operating in Illinois under EIA identifier 18955. It reports service to approximately 16,588 customer accounts and generated about $0.05 billion in annual electric revenue, with a service footprint spanning 47 ZIP codes. Cooperative ownership means the utility is run for the benefit of the ratepayer-members who elect its board, rather than for shareholder returns, which can shift how rate and investment decisions get made.

In 2023, the average Tri-County Electric Coop, Inc (IL) customer experienced 257.6 minutes of power interruptions, a measure known as SAIDI, or 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. Over the same period, SAIFI (outage events per customer) was 1.91, putting the typical customer at roughly 2 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 51.5 minutes, and the spread against the headline 257.6 indicates how much weather, versus routine infrastructure, drove the outage total.

With 4 consecutive years of EIA data (2020–2023), Tri-County Electric Coop, Inc (IL)'s reliability record can be judged on trend rather than one isolated year. Over that span, SAIDI rose from 160.5 to 257.6 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.