Mountrail-Williams Elec Coop

What This Utility Data Tells You

Mountrail-Williams Elec Coop is a member-owned electric cooperative operating in North Dakota under EIA identifier 20413. It reports service to approximately 18,949 customer accounts and generated about $0.42 billion in annual electric revenue, with a service footprint spanning 25 ZIP codes. Being member-owned, this cooperative answers to its ratepayers rather than outside shareholders, a structure that tends to influence how rate cases and capital spending get decided.

In 2023, the average Mountrail-Williams Elec Coop customer experienced 241.8 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. The SAIFI figure, which tracks average outage events per customer, came in at 1.39 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 129.2 minutes; the difference from the headline 241.8 shows how much of the outage total came from weather rather than everyday grid issues.

Mountrail-Williams Elec Coop has 2 years of continuous EIA reporting on file (2022–2023), enough to read a real trend rather than a single-year snapshot. Over that window, SAIDI moved from 7226.8 down to 241.8 minutes, a trend worth noting for anyone weighing capital investment outcomes. Note: this figure is unusually low compared to typical U.S. utility performance and may reflect an incomplete EIA filing for this year rather than a genuine reliability improvement -- treat with caution and cross-check against Mountrail-Williams Elec Coop's other reported years.