City staff in Madison, South Dakota, have reassured residents that a planned cryptocurrency mining facility will not increase local electricity costs and may even lower them. The project, operated by Giga Energy, is set to use 10 megawatts of power starting in August 2026. Officials addressed public concerns during town hall meetings on January 28.
In Madison, South Dakota, city officials recently quelled worries about a proposed cryptocurrency data center, emphasizing that it poses minimal risk to residents' electricity rates. At town hall meetings on January 28, Utilities Director Mike Plooster and City Administrator Jameson Berreth explained that the facility, to be run by Giga Energy, would operate on a separate circuit from the city's grid, ensuring no disruptions to local power supply. The center requires rezoning of 3.75 acres next to the Madison Generating Plant, off Highway 34, from agricultural and highway business to light industrial use.
The small-scale operation focuses on mining cryptocurrencies like Bitcoin, using four to six shipping containers of computer equipment. Unlike AI data centers, which demand constant power and vast resources, this crypto facility is air-cooled, needs water only for bathrooms, and can be interrupted during emergencies. It will consume 10 megawatts, representing about 3.5% of the city's metered electrical sales. Berreth noted that Giga Energy will cover all infrastructure costs, including upgrades and a decommissioning fund, plus a reserve deposit for usage.
Financially, the project could benefit the city. Plooster estimated it would generate $425,000 annually in electrical revenue, potentially accelerating the payoff of loans and reducing surcharges. "Rates with the data center will be lower than rates without the data center," Berreth stated. Additional income includes $66,000 in sales tax from electrical purchases and possible proceeds from land sales or leases, as the city owns the site.
Despite planned rate hikes for broader grid upgrades—from 69 kilovolts to 115 kilovolts to match Western Area Power Administration standards—these are unrelated to the data center. The substation upgrade, proceeding regardless, aligns with the facility's August 2026 launch to ease grid strain. Madison has a letter of intent with Giga Energy and joined Heartland Energy's DATA program, offering interruptible rates tied to wholesale market fluctuations for added flexibility.
Public concerns about noise, emissions, and utility impacts persist but will be tackled in upcoming planning and commission meetings, where a conditional use permit could impose regulations. Resident Jim Thompson, initially wary of a larger AI project, found reassurance: "There's not much of a downside."
Plooster stressed caution: "We don't want a lot of risk involved." Recordings of the meetings are available on the city's Facebook page.
