SAIDI
989 min per year
Mean outage duration per year (2023)
Tallahatchie Valley E P A is a member-owned electric cooperative operating in Mississippi under EIA identifier 18447. It reports service to approximately 28,404 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 41 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 Tallahatchie Valley E P A customer experienced 989.1 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That runs well past the 120–180 minute national benchmark, which can reflect storm-exposed terrain, an aging grid, or slower restoration times. SAIFI, the average number of outage events per customer, was 5.30 for the same period, so customers statistically faced roughly 5 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 507.8 minutes; the difference from the headline 989.1 shows how much of the outage total came from weather rather than everyday grid issues.
Tallahatchie Valley E P A has 3 years of continuous EIA reporting on file (2021–2023), enough to read a real trend rather than a single-year snapshot. SAIDI has increased from 468.7 to 989.1 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
SAIDI
989 min per year
Mean outage duration per year (2023)
SAIFI
5.30 interruptions/yr
Average interruption count (2023)
Customers
28,404
Customers across Mississippi
989 min/year per customer
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2021 | 468.7 | 468.7 | 1.080 | - |
| 2022 | 802.0 | 334.0 | 5.800 | - |
| 2023 | 989.1 | 507.8 | 5.300 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Tallahatchie Valley E P A serves 41 ZIP codes in Mississippi.
Tallahatchie Valley E P A had a SAIDI of 989.1 minutes in 2023. Excluding major weather events, this is above the national average, indicating below-average reliability.
Tallahatchie Valley E P A is classified as a Cooperative serving Mississippi.
Tallahatchie Valley E P A serves approximately 28,404 customers in Mississippi.
Tallahatchie Valley E P A has 3 years of reliability data (2021-2023). 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.