Waupun Utilities

What This Utility Data Tells You

Waupun Utilities is a municipally-owned utility operating in Wisconsin under EIA identifier 20213. It reports service to approximately 4,504 customer accounts and generated about $0.01 billion in annual electric revenue, with a service footprint spanning 1 ZIP code. 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 Waupun Utilities customer experienced 10.0 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. The SAIFI figure, which tracks average outage events per customer, came in at 0.11 for the same period, meaning customers statistically saw about 0 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 10.0 minutes; the difference from the headline 10.0 shows how much of the outage total came from weather rather than everyday grid issues.

Waupun Utilities 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 5.5 to 10.0 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.