SAIDI
614 min per year
Average outage minutes (2023)
Eastern Illinois Elec Coop is a member-owned electric cooperative operating in Illinois under EIA identifier 5585. It reports service to approximately 13,502 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 117 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 Eastern Illinois Elec Coop customer experienced 613.9 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. SAIFI, the average number of outage events per customer, was 2.06 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 110.1 minutes, the gap between that figure and the headline 613.9 reveals how much weather, not day-to-day infrastructure, drove outages.
With 4 consecutive years of EIA data (2020–2023), Eastern Illinois Elec Coop's reliability record can be judged on trend rather than one isolated year. SAIDI climbed from 148.9 to 613.9 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
614 min per year
Average outage minutes (2023)
SAIFI
2.06 interruptions/yr
Events per customer (2023)
Customers
13,502
Customers across Illinois
614 outage minutes per customer annually
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 148.9 | 108.9 | 1.470 | 13,488 |
| 2021 | 303.8 | 130.9 | 2.370 | 13,515 |
| 2022 | 176.9 | 163.7 | 1.680 | 13,506 |
| 2023 | 613.9 | 110.1 | 2.065 | 13,511 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Eastern Illinois Elec Coop serves 117 ZIP codes in Illinois.
Eastern Illinois Elec Coop had a SAIDI of 613.9 minutes in 2023 including major weather events, but 110.1 minutes excluding them (the industry-standard measure of routine reliability, so the gap traces back to a major storm that year, not a chronic issue). Excluding major weather events, this is near the national average.
Eastern Illinois Elec Coop is classified as a Cooperative serving Illinois.
Eastern Illinois Elec Coop serves approximately 13,502 customers in Illinois.
Eastern Illinois Elec Coop has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.