Northeast Radio SD News – Milbank, SD - The South Dakota Public Utilities Commission has begun formal review of Otter Tail Power Company’s application to build a major new 345‑kilovolt transmission line across Grant and Roberts counties, a project that would span roughly 71 miles from the Big Stone South Substation west of Big Stone City to the North Dakota border northeast of New Effington.

Northeast Radio SD News – Watertown, SD - On July 27, 2026, Otter Tail Power Company (OTP) submitted a formal petition to the South Dakota Public Utilities Commission (SD PUC) requesting the approval of new electric rate schedules tailored specifically for very large customers. The proposed changes, slated to take effect on January 1, 2027, introduce a specialized rate class for high power compute (HPC) loads, such as large-scale data centers and artificial intelligence (AI)