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Lyon County approves master‑plan change for 505‑acre Monarch data‑center; project moves to PUD stage
Summary
After hours of testimony for and against, the Lyon County Board of Commissioners approved a master‑plan amendment for Copia Power’s proposed 505‑acre ‘Monarch’ data‑center campus, sending the project into the more detailed planned unit‑development (PUD) review. Commissioners and the applicant emphasized traffic, water, battery safety and economic impacts as the next issues to resolve.
The Lyon County Board of Commissioners voted Dec. 4 to approve a master‑plan amendment that clears the way for Copia Power’s proposed Monarch data‑center on roughly 505 acres in Mason Valley. The approval changes the site designation from agriculture to a ‘specific plan,’ allowing the company to proceed to the PUD (planned unit development) phase, where engineering, environmental reviews and binding mitigation will be evaluated.
Copia representatives and county planners framed the request as a lands‑use fit because the parcels sit inside utility corridors adopted in the county master plan and near the Walker River and Fort Churchill substations. Ash Woods, presenting for Copia Power, said the company had tried to respond to community concerns: “We’ve held community meetings, we’ve moved primary access off Penrose and are proposing Sierra Way as primary access,” he said, summarizing changes the applicant made after an earlier hearing.
Staff and Copia emphasized…
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