Southeastern Electric Coop Inc - (SD)

What This Utility Data Tells You

Southeastern Electric Coop Inc - (SD) is a member-owned electric cooperative operating in South Dakota under EIA identifier 19293. It reports service to approximately 22,283 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 46 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 Southeastern Electric Coop Inc - (SD) customer experienced 53.8 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. Excluding major event days (hurricanes, ice storms), SAIDI drops to 53.8 minutes, the gap between that figure and the headline 53.8 reveals how much weather, not day-to-day infrastructure, drove outages.

With 4 consecutive years of EIA data (2020–2023), Southeastern Electric Coop Inc - (SD)'s reliability record can be judged on trend rather than one isolated year. SAIDI has improved from 113.2 to 53.8 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.