Committee hears water, power and on-site generation concerns for data centers

Aug 27, 2026

Members and guests told the advisory committee that large data centers can require high power (tens to hundreds of megawatts), substantial water for closed-loop systems (speaker cited 100,000200,000 gallons per day for one facility), and may rely on on-site generation (diesel or natural-gas turbines) with noise and environmental impacts; several members said those factors support parcel-specific controls.

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Speakers at the meeting emphasized utilities as a core siting concern for data centers. County staff and Rosemary Bates (Gallatin) discussed water-use figures and electricity contracts: Bates said Metas Gallatin site uses a closed-loop system and "uses about anywhere from a 100,000 to 200,000 gallons of water a day," and that Meta signed long-term electricity commitments coordinated with TVA. County staff noted that a developers failure to secure a power contract has left a local colocation building empty for years.

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