SAIDI
676 min per year
Average outage minutes (2023)
Natchez Trace Elec Power Assn is a member-owned electric cooperative operating in Mississippi under EIA identifier 13227. It reports service to approximately 16,163 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 23 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 Natchez Trace Elec Power Assn customer experienced 675.6 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI, the average number of outage events per customer, was 5.75 for the same period, so customers statistically faced roughly 6 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 154.2 minutes, the gap between that figure and the headline 675.6 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Natchez Trace Elec Power Assn, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 683.6 to 675.6 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
SAIDI
676 min per year
Average outage minutes (2023)
SAIFI
5.75 interruptions/yr
Average interruption count (2023)
Customers
16,163
Customers across Mississippi
676 minutes per customer per year
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 683.6 | 201.8 | 4.886 | 15,973 |
| 2021 | 670.5 | 318.6 | - | 15,902 |
| 2022 | 390.0 | 160.8 | 4.810 | - |
| 2023 | 675.6 | 154.2 | 5.750 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Natchez Trace Elec Power Assn serves 23 ZIP codes in Mississippi.
Natchez Trace Elec Power Assn had a SAIDI of 675.6 minutes in 2023 including major weather events, but 154.2 minutes excluding them (the IEEE-standard day-to-day reliability measure, the difference points to a major storm that year rather than an ongoing problem). Excluding major weather events, this is near the national average.
Natchez Trace Elec Power Assn is classified as a Cooperative serving Mississippi.
Natchez Trace Elec Power Assn serves approximately 16,163 customers in Mississippi.
Natchez Trace Elec Power Assn has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. 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.