Lyon County planning commission forwards Monarch Data Center PUD to commissioners amid broad public opposition

The Lyon County Planning Commission voted 4–3 on July 14 to forward a recommendation to the Board of County Commissioners to approve a planned unit development for the proposed Monarch Data Center, a 505‑acre project that the applicant says will include up to 4.6 million square feet of data center buildings, a 500‑megawatt battery energy storage system and a 500‑megawatt natural‑gas generation facility.

The action follows more than five hours of public comment and a multi‑hour staff and applicant presentation in Yerington in which dozens of residents, tribal leaders and community groups urged the commission to pause or deny the project over concerns about groundwater, wastewater, noise, cultural resources and traffic. Commissioner Jones moved to forward the PUD recommendation; Commissioner Merritt seconded the motion. The commission recorded the final tally as 4 yes, 3 no.

Opponents repeatedly asked the commission to require independent, third‑party studies and to complete formal tribal consultation before the county advances the project. “Please recommend a temporary moratorium to the Board of Commissioners before additional data center projects move forward,” said Justina Yarlene during public comment, urging the commission to delay action so the county can “independently research these facilities, hear from the public, and establish strong protections.” Several tribal council representatives and archaeologists raised the prospect of impacts to ancestral sites and asked for formal government‑to‑government consultation.

Staff framed the Planning Commission’s role as a land‑use review that evaluates consistency with the Monarch specific plan and Lyon County code while noting that several state and federal approvals remain necessary. “The water rights … would all be administered for transfer of use through the Nevada State Engineer’s office,” senior planner Louis Guarillo told the commission, adding that air permits, wastewater approvals and other permits are handled by state agencies.

The applicant, represented by Monarch project manager Michael Paul of Copia Power, said technical studies and design work are ongoing and described mitigation commitments the company has proposed. Paul told the commission the project team expects to reduce on‑site water demand relative to historical agricultural use and to implement a wastewater‑treatment and reuse system. “With the hybrid dry cooling system that we’re proposing, it’s expected to be 800 acre‑feet per year or less,” Paul said, comparing that figure to the site’s historical use described in application materials. He also said Copia has committed to fund and construct required off‑site improvements and to work with the county on a development agreement addressing community benefits.

Commissioners pressed both staff and the applicant on technical details that remain unresolved in the record: the source and legally enforceable limit of groundwater pumping, an independent human‑health and air‑quality assessment, the design and monitoring plan for wastewater reuse or discharge, fire and hazardous‑materials planning for large battery systems, the scope of traffic improvements and the timetable for tribal consultation. The applicant said many technical permits must be obtained from state agencies and that the county’s PUD conditions would include requirements for roadway improvements, including a northbound passing lane on US‑95A, to be completed prior to issuance of site improvement permits.

Labor and construction representatives urged the commission to consider local economic benefits. Chase Rowe, representing Laborers Local 169, said the project would create construction jobs and apprenticeships in the region. Other commenters questioned the long‑term net benefit to the county and asked whether tax abatements or reclamation financial assurances were in place; in the hearing Copia stated it did not plan to seek tax abatements and that monetary community benefit and infrastructure commitments would be further specified in a development agreement.

The Planning Commission’s recommendation does not approve final permits; the application will advance to the Board of County Commissioners, and multiple state approvals remain required, including water‑rights action by the State Engineer and air and wastewater permits. County staff noted the Board will consider a county‑level workshop and draft ordinance related to data centers on Aug. 3, 2026.

The commission’s vote to forward the recommendation closes the planning commission’s formal advisory role in this phase; the Board of County Commissioners will consider the PUD and any additional conditions or mitigation measures. The board’s review will include opportunities for comment and for the applicant to supply further technical documentation cited during the hearing.