SAIDI
688 min per year
Mean outage duration per year (2023)
SEMO Electric Cooperative is a member-owned electric cooperative operating in Missouri under EIA identifier 16805. It reports service to approximately 16,248 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 35 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.
In 2023, the average SEMO Electric Cooperative customer experienced 687.5 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That exceeds the 120–180 minute national benchmark by a wide margin, a pattern often tied to severe weather exposure, older infrastructure, or longer repair windows. Over the same period, SAIFI (outage events per customer) was 2.53, putting the typical customer at roughly 3 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 687.5 minutes, the gap between that figure and the headline 687.5 reveals how much weather, not day-to-day infrastructure, drove outages.
SEMO Electric Cooperative 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 165.0 to 687.5 minutes over that window, a shift that can point to worsening weather exposure or delayed grid modernization.
SAIDI
688 min per year
Mean outage duration per year (2023)
SAIFI
2.53 interruptions/yr
Average interruption count (2023)
Customers
16,248
Served in Missouri
688 min/year per customer
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 165.0 | 165.0 | 1.549 | - |
| 2021 | 135.8 | 135.8 | 1.238 | - |
| 2022 | 254.3 | 254.3 | 1.756 | - |
| 2023 | 687.5 | 687.5 | 2.526 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
SEMO Electric Cooperative serves 35 ZIP codes in Missouri.
SEMO Electric Cooperative had a SAIDI of 687.5 minutes in 2023. Leaving aside major weather events, that figure runs above the national average, pointing to below-average reliability.
SEMO Electric Cooperative is classified as a Cooperative serving Missouri.
SEMO Electric Cooperative serves approximately 16,248 customers in Missouri.
SEMO Electric Cooperative has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the 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.