Monarch Data Center Planned Unit Development
Description
A 4.6-million-square-foot, 1,000-MW data center campus with a 500-MW battery storage system and 500-MW natural gas plant on 505.40 acres currently zoned RR-20 rural residential. The Planning Commission recommended approval 4-3, with staff language requiring the applicant to build a northbound passing lane on Highway 95A before any permits issue.
Impact summary
If the Board approves, Yerington gains a massive industrial energy-and-computing campus promising thousands of construction jobs and over a billion dollars in property tax revenue — alongside years of construction traffic, potential noise, and ongoing water use from existing agricultural rights.
Applicant
- Name
- Copia Power Devco, LLC
- Address
- 150 and 155 Penrose Lane, Mason Valley, Yerington, NV (APNs 014-201-07 and 014-201-30)
At a glance
- Hearings
- 1
- Public comments
- 0
- Total mentions
- 1
Last vote · Planning Commission
A recommendation, not a final decision. Board of County Commissioners decides next.
Last discussed Jul 14, 2026.
Meeting timeline (1)
Related issues (3)
U.S. 95A and S.R. 208 safety
A new state grant pays for crossing signs at OHV accident hotspots and free helmets handed out with the Sheriff's Office.
Tribal Consultation and Cultural Resources
Tribal members testified that formal government-to-government consultation with the Yerington Paiute and Walker River Paiute tribes has not occurred, citing NRS 383.121 and 383.170 and concerns over burial sites and water contamination on tribal lands. Commissioner Loomis told the applicant that as a sovereign nation, the tribes must receive formal consultation notices from it, not the other way around.
Dayton Valley Water Conservation Plan update
Water dominated public comment: speakers fear the data center will drain aquifers already stressed by drought and affect the Walker River and tribal water systems. The applicant says hybrid dry cooling will cut use from a historic 2,000 acre-feet to under 800 acre-feet per year, using existing water rights, with the State Engineer holding permitting authority.
We'll email you when it's on an upcoming agenda, when it's voted on and when its status changes, at most once a day.
The weekly brief for Lyon County
What the council decided, in plain English — one email a week.
Free. Unsubscribe with one click any time. We never sell your email.