City of Idaho Falls - (ID)

What This Utility Data Tells You

City of Idaho Falls - (ID) is a municipally-owned utility operating in Idaho under EIA identifier 9187. It reports service to approximately 31,688 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 4 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.

In 2023, the average City of Idaho Falls - (ID) customer experienced 39.9 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. Over the same period, SAIFI (outage events per customer) was 0.45, putting the typical customer at roughly 0 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 22.1 minutes, the gap between that figure and the headline 39.9 reveals how much weather, not day-to-day infrastructure, drove outages.

With 4 consecutive years of EIA data (2020–2023), City of Idaho Falls - (ID)'s reliability record can be judged on trend rather than one isolated year. Over that window, SAIDI moved from 183.6 down to 39.9 minutes, a trend worth noting for anyone weighing capital investment outcomes.