City of St Charles - (IL)

What This Utility Data Tells You

City of St Charles - (IL) is a municipally-owned utility operating in Illinois under EIA identifier 17860. It reports service to approximately 16,346 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 6 ZIP codes. Being municipally owned, the utility answers to a local board or city council rather than a state commission, and carries a federal income tax exemption.

In 2023, the average City of St Charles - (IL) customer experienced 58.5 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). 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 0.56, putting the typical customer at roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 56.7 minutes, the gap between that figure and the headline 58.5 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of St Charles - (IL), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 30.2 to 58.5 minutes, which may reflect either worsening weather exposure or delayed grid modernization.