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. 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 Southwest Mississippi E P A customer experienced 2255.5 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). That is substantially above the 120–180 minute national benchmark, indicating either storm-prone geography, aging infrastructure, or extended restoration windows. Excluding major event days (hurricanes, ice storms), SAIDI drops to 1303.2 minutes — the gap between that figure and the headline 2255.5 reveals how much weather, not day-to-day infrastructure, drove outages.

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. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.