SAIDI
437 min per year
Average outage minutes (2023)
Cass County Elec Coop Inc is a member-owned electric cooperative operating in North Dakota under EIA identifier 24949. It reports service to approximately 58,221 customer accounts and generated about $0.15 billion in annual electric revenue, with a service footprint spanning 60 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 Cass County Elec Coop Inc customer experienced 437.1 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, 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 0.83, putting the typical customer at roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 23.3 minutes, the gap between that figure and the headline 437.1 reveals how much weather, not day-to-day infrastructure, drove outages.
With 4 consecutive years of EIA data (2020–2023), Cass County Elec Coop Inc's reliability record can be judged on trend rather than one isolated year. SAIDI has increased from 47.8 to 437.1 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
SAIDI
437 min per year
Average outage minutes (2023)
SAIFI
0.83 interruptions/yr
Outage frequency (2023)
Customers
58,221
Served in North Dakota
437 minutes per customer per year
Power-out minutes per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 47.8 | 27.3 | 0.577 | 52,265 |
| 2021 | 47.1 | 24.3 | 0.541 | 53,651 |
| 2022 | 93.1 | 39.0 | 1.348 | 55,506 |
| 2023 | 437.1 | 23.3 | 0.833 | 56,779 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Cass County Elec Coop Inc serves 60 ZIP codes in North Dakota.
Cass County Elec Coop Inc had a SAIDI of 437.1 minutes in 2023 including major weather events, but 23.3 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Excluding major weather events, this is below the national average, indicating above-average reliability.
Cass County Elec Coop Inc is classified as a Cooperative serving North Dakota.
Cass County Elec Coop Inc serves approximately 58,221 customers in North Dakota.
Cass County Elec Coop Inc has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.