Alta Approves Underground Electric Conversion for Southeast Residential Customers

A Bitcoin mining operation that would consume six to ten times Alta's entire electricity supply is the financial backbone of the city's plan to bury its overhead power lines underground. The first phase secured its legal footing when the Buena Vista County Board of Supervisors approved utility permits for Alta Municipal Utilities.

The permits authorize conduit runs along county roads M31 and C49, carrying 12,470-volt lines roughly 42 inches below the surface to serve residential customers south of Highway 7 in the area bounded by Main Street and First Street South. Alta Municipal Utilities manager Mitch Langschwager confirmed the depth and voltage specifications and oversaw the engineering plans that formalize phase one of what will be a multi-phase conversion of the city's above-ground electric distribution system.

The financial architecture of the project depends heavily on a proposed industrial-scale tenant: Savage Power of Coon Rapids has proposed a Bitcoin mining facility north of Highway 7 near Alta's wellfield. That operation would require between 12 and 20 megawatts of power. Alta's current citywide consumption sits at roughly 2 megawatts. Under anticipated lease and service terms, Savage Power would pay the municipal utility a contracted rate projected to generate $20,000 to $30,000 per month. Langschwager said those proceeds are expected to help finance the undergrounding work once final agreements are signed.

That revenue stream is the difference between a project that pencils out and one that would require steep rate increases for Alta's residential and commercial customers. Tying the conversion to a large industrial customer lets AMU spread infrastructure costs without burdening its existing rate base, and it eliminates the storm and wind vulnerability that comes with overhead lines in northwest Iowa.

The plan carries risks that remain unresolved. Bitcoin mining is commodity-driven: its profitability fluctuates with cryptocurrency prices and energy markets, meaning the monthly revenue projection rests on assumptions no contract can fully lock in. Savage Power's proposed location near the city's wellfield also raises land-use questions that have not been publicly addressed. Lease duration, exact power rates, and the mine's guaranteed electrical load commitments all remained unfinalized at the time of the county permit approvals.

City officials have targeted a summer 2026 groundbreaking for the mining project, though the county permits were not filed in direct connection with the mine. The timeline for phase two of the underground conversion had not been scheduled. The financial terms Savage Power and the city ultimately agree to will determine whether Alta's southeast neighborhoods get buried lines funded by Bitcoin revenue or wait for an entirely different financing path.