Southwest Mississippi E P A

What This Utility Data Tells You

Southwest Mississippi E P A is a member-owned electric cooperative operating in Mississippi under EIA identifier 17683. It reports service to approximately 25,440 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 23 ZIP codes. Cooperative ownership means the utility is run for the benefit of the ratepayer-members who elect its board, rather than for shareholder returns, which can shift how rate and investment decisions get made.

In 2023, the average Southwest Mississippi E P A customer experienced 2255.5 minutes of power interruptions, a measure known as SAIDI, or 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. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 1303.2 minutes; the difference from the headline 2255.5 shows how much of the outage total came from weather rather than everyday grid issues.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Southwest Mississippi E P A, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 4811.2 to 2255.5 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.