Union Electric Co - (MO)

What This Utility Data Tells You

Union Electric Co - (MO) is an investor-owned utility operating in Missouri under EIA identifier 19436. It reports service to approximately 1,254,162 customer accounts and generated about $3.18 billion in annual electric revenue, with a service footprint spanning 500 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.

In 2023, the average Union Electric Co - (MO) customer experienced 480.0 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. Over the same period, SAIFI (outage events per customer) was 1.18, putting the typical customer at roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 93.0 minutes; the difference from the headline 480.0 shows how much of the outage total came from weather rather than everyday grid issues.

Union Electric Co - (MO) has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI climbed from 155.0 to 480.0 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.