Data center profile · Wabuska, Mason Valley, Lyon County, Nevada

Monarch Data Center

Copia Power's 1,000 MW gas-backed data center on 505 acres in Lyon County, Nevada, tentatively zoned Aug. 2026; no tenant, land closing or power agreement.

Tentatively approved. Lyon County approved the master plan in Dec. 2025 and tentative planned-unit zoning on Aug. 6, 2026, which does not allow grading. Land purchase, final zoning, state air and water permits, utility agreement, tenant and financing are not on record.
The site, Satellite image, April 3, 2024
1,000 MW
total anticipated campus load in the county filings
developer's figure for 8 buildings; no IT capacity is stated
500 MW
on-site natural gas plant, plus a 500 MW battery
described as backup power; opponents say it will run 24/7 (not established)
505 acres
two parcels still owned by local families
purchase not closed as of Aug. 2026 reporting
$8B to $15B
investment claimed, depending on the source
$8B (press), $12B in the application, $15B said at the hearing
OperatorCopia Power DevCo (Copia Power, being sold by Carlyle to EQT)
CustomerNone named; the end user is undisclosed
Planned IT capacity800 MW at full build-out (our estimate from the company's 1 GW campus power figure)
First building in serviceOur estimate: 2029 or later (no dated power path yet).
Next deadlineAug. 6, 2027: Final planned-unit zoning application due within one year of the tentative approval
From orbit

The site from above

Satellite overview1
Satellite image, Sept. 7, 2021.
From orbit

The site

Satellite views of the same ground on July 4, 2011 and April 3, 2024. Drag to compare.

after
before
◀ Aerial photo, July 4, 2011Satellite image, April 3, 2024 ▶
Power

Power and the grid

None energized or contracted yet

NV Energy grid serviceRequested, no agreement
1,000 MW
load the county filings describe; NV Energy still has to run a load study and no service or interconnection agreement is signed Local government · May 2026
On-site natural gas plantProposed, no air permit
500 MW
combined-cycle, simple-cycle turbines or engines; filed as backup; gas would come by a new lateral from a pipeline 3 to 5 miles away, with no agreement Local government · May 2026
Battery storageProposed
500 MW
500 MW battery system in the approved concept Local government · July 2026
Proposed

Getting on the grid

Who supplies what, what it costs, and what is still not public.

  1. May 18, 2026
    Grid plan filed
    The application says the campus would connect near NV Energy's Walker River Substation and that energy would be allocated after a load study. Local government · May 2026
  2. May 2027
    Greenlink West due
    NV Energy expects its Greenlink West line in service by May 2027; Greenlink North follows in Dec. 2028. The developer ties its schedule to these. Company · Oct. 2026
  3. Not set
    Gas supply: not signed
    A new gas lateral is anticipated from pipelines about 3 miles north or 5 miles west; no agreement or route is on record. Local government · May 2026
  4. Not set
    Gen-tie easements: not obtained
    The roughly 2-mile power line to the substation needs easements across state wildlife land or neighboring solar parcels, and a separate county use permit. Local government · May 2026

What is next door

campus10.56 km · 345 kV+ linecampus10.56 km · 345 kV+ line

Distances from mapped lines and plants. OpenStreetMap · Oct. 2026

Permits

Permits checklist

2 granted · 5 checked, nothing on file

Approvals a campus like this normally needs, and what the record shows.

Risks

What could slow it down

Money

Money on record

$8B
capital spending expected (press)
including $4B in labor; the application cites $12B and a company executive said $15B at the hearing News report · July 2026
$1.7B
county taxes claimed over 25 years, from a Copia study
about $2.5B including state taxes; unverified Local government · Aug. 2026

Not on record: Copia says it will not seek tax breaks: no abatements, it asked to negotiate a development agreement, none is signed Local government · Aug. 2026; financing closed: Carlyle reportedly committed equity, not drawn, Carlyle agreed in July 2026 to sell Copia to EQT, closing expected end of 2026 Company · July 2026

Timeline

What happened, and what is due

SitePaper trailConstructionPowerPermitsMoneyLegalUpcoming
  1. Feb. 12, 2021
    Money Copia Power DevCo, the project company, is formed in Delaware under Carlyle's power platform
  2. July 8, 2025
    Permits Planning commission recommends the master plan change 6 to 0 (a recommendation, not a decision) Local government · July 2025
  3. Dec. 4, 2025
    Permits County commission approves the Monarch specific plan on 505 acres Local government · Dec. 2025
  4. May 18, 2026
    Site Developer files its zoning narrative describing 1,000 MW, 500 MW of gas and 500 MW of batteries Local government · May 2026
  5. July 10, 2026
    Money Carlyle agrees to sell Copia Power to EQT; closing expected by the end of 2026 Company · July 2026
  6. July 14, 2026
    Permits Planning commission recommends the tentative zoning Local government · July 2026
  7. Aug. 3, 2026
    Site County workshop on a data center ordinance; residents ask for a one-year moratorium and Monarch is said to be exempt Local government · Aug. 2026
  8. Aug. 6, 2026
    Permits County commission grants tentative zoning, 3 to 1 with one abstention, after six hours of mostly opposed comment Local government · Aug. 2026
  9. Sept. 2026
    Site Recall campaign begins against four of five county commissioners over Monarch and related approvals News report · Sept. 2026
  10. Sept. 17, 2026
    Money Governor's order tightens state data center tax abatement terms; Copia has no application News report · Sept. 2026
  11. Sept. 27, 2026
    Site Yerington Paiute and Walker River Paiute tribes adopt resolutions opposing the project News report · Sept. 2026
  12. Aug. 6, 2027
    Permits Final planned-unit zoning application due Local government · Aug. 2026
Construction activity

Satellite captures by quarter

Since July 2011: 75 satellite captures. The chart starts in the first quarter of 2023; 10 earlier records are not drawn.

Satellite
’23
’24
’25
’26
Dot size: records in the quarter, largest = 6. Two-digit years mark each first quarter.
The buildings

Specs

8 buildings
two stories, up to 75 feet, 4.6 million sq ft in the approved concept
505.4 acres
two parcels on Penrose Lane east of US 95A
Under 100 to 800 acre-feet a year
water use: the application says under 100; the county staff report says under 800
150 to 250 jobs
long-term, projected (press)
Who is involved

Owners, partners and builders

Developer and owners
  • Copia Power DevCo: applicant
  • Copia Power: parent platform, created by Carlyle in 2021
  • EQT Infrastructure VII: buying Copia from Carlyle
  • L&M Family Limited Partnership and Masini Investments: landowners
Decision-makers
  • Lyon County Commission: voted 3 to 1, with Commissioner Cassinelli abstaining over a conflict as interim head of the Northern Nevada Development Authority
  • NV Energy: serving utility, Greenlink owner
Advisers
  • Environmental Resources Management: prepared the application
  • Northern Nevada Development Authority: wrote the economic analysis
Opponents and supporters
  • Yerington Paiute and Walker River Paiute tribes: opposed
  • Residents and recall organizers: opposed
  • LIUNA Local 169: supported at the hearing
Not this project
  • Copia's Bergen campus in Clark County is a separate project and is not merged here
Still unknown

Open questions

Where this comes from

368 records from 29 documents

Drawn from news reports, local government records, public and commercial datasets, company statements, state agency records, our own analysis, securities filings and satellite captures, each kept with its date and source. The bar shows documents by type.

News report 9Local government 7Dataset 5Company 4State agency 3Analysis 2SEC filing 2Satellite 0
Evidence

Every quote behind this page

Grade key: A = the primary record itself (permit, filing, exhibit) · B = a dated official statement · C = news reporting. Map distances are our own measurements on OpenStreetMap and carry no grade. Allegations in lawsuits are marked as such in the quotes.

Power (39)
  • SEC filings: Zero SEC footprint: 'Copia Power' and 'Copia Power Devco' return 0 hits across all of EDGAR; Form D 'Copia' hits are unrelated funds (Copia Credit Impact Fund I, LLC; Copia Market Neutral Fund)
    “EDGAR full-text search: Copia Power 0 hits”
  • IT capacity disclosed: no
    “The Proposed PUD is a 1,000-megawatt (MW) data center facility (the total anticipated load across a set of buildings comprising the project campus)”
  • Buildings approved: 8 buildings
    “a 4.6 million square feet, 1,000 Megawatt (MW) data center consisting of 8, two-story buildings up to 75 feet tall, a 500-MW battery energy storage system, a 500-MW natural gas backup system”
  • State: Nevada
    “As part of the Monarch Data Center Project, Copia Power makes a formal commitment to the construction of a northbound passing lane extending up Wabuska Hill on US Highway 95 in Wabuska, Nevada”
  • Sponsor developer: Copia Power DevCo, LLC
    “the request from Copia Power Devco, LLC, for approval of a zone change from the Title 10 district of RR-5 (Fifth Rural Residential, 20-acre minimum) to Planned Unit Development for the Monarch Data Center”
  • On-site generation: 500 MW
    “a 500-MW battery energy storage system, a 500-MW natural gas backup system”
  • Sq ft buildings: 4600000 sq ft
    “a 4.6 million square feet, 1,000 Megawatt (MW) data center”
  • Stated campus size: 1,000 MW
    “the total anticipated load across a set of buildings”
  • On-site generation: 500 MW
    “The proposed natural gas energy generation system will provide up to 500 MW of capacity using either combined-cycle, single-cycle combustion turbines or reciprocating engines”
  • Power plan: hybrid - NV Energy grid service plus 500 MW on-site gas backup and 500 MW BESS
    “The primary purpose of the PUD zoning designation is to permit the development of a proposed data center facility with ancillary uses, including a natural gas plant and battery energy storage system (BESS)”
  • Interconnection status: no executed interconnection agreement or energy service agreement; NV Energy load study still to allocate energy
    “Anticipated energy consumption will be allocated by Nevada Energy based on a load study that considers available energy resources, potential impacts to the electric grid and upgrades that may be needed to mitigate impacts”
  • Target date basis: no committed COD; narrative §3.11 states the project would be fully constructed within 3-4 years, driven by Walker River Substation and Greenlink completion and subject to change
    “The Project is anticipated to be fully constructed within 3-4 years. Though, this schedule is subject to change, due to ongoing coordination with NV Energy and timeline(s) for substation improvements”
  • Cooling: air-cooled, closed-loop; no county water or sewer service
    “The data center will prioritize the use of an air-cooled, closed-loop cooling system that removes heat using ambient air rather than evaporating water”
  • conditional use permit interconnection: not filed - the above-ground gen-tie interconnection will be a separate future CUP application
    “It is understood that the interconnection route, as proposed, will require a Conditional Use Permit from Lyon County”
  • Stated campus size: 1,000 MW
    “the Monarch Data Center, a 4.6 million square feet, 1,000 Megawatt (MW) data center consisting of 8, two-story buildings”
  • On-site generation: 500 MW
    “a 500-MW battery energy storage system, a 500-MW natural gas backup system, an electrical substation, high voltage power lines”
  • On-site generation: 500 MW
    “a 500-MW battery energy storage system, a 500-MW natural gas backup system, an electrical substation, high voltage power lines”
  • Project status: announced only - entitlements only, no construction; developer COD statements are contingent on the NV Energy Walker River Substation and Greenlink completion
    “none (entitlements only: Specific Plan / master plan amendment approved Dec 5, 2025; tentative PUD approved Aug 6, 2026 with conditions; state permits outstanding)”
    grade B
  • County code: 32019
    “campus anchor (Penrose Lane, Wabuska): Lyon County NV (32019) per FCC point-in-county lookup; both APN parcels and the planned on-site substations are in Lyon County in the county record”
  • Nearest power line of 345 kV or more: 10.56 km
    Measured on OpenStreetMap map data.
  • Stated campus size: 1,000 MW
    “the Monarch Data Center, a 4.6 million square feet, 1,000 Megawatt (MW) data center consisting of 8, two-story buildings”
  • On-site generation: 500 MW
    “a 500-MW battery energy storage system, a 500-MW natural gas backup system, an electrical substation, high voltage power lines”
  • On-site generation: 500 MW
    “a 500-MW battery energy storage system, a 500-MW natural gas backup system, an electrical substation, high voltage power lines”
  • Construction stage: none - no construction; tentative entitlement only
    “Comm. Hendrix moved to approve the request from Copia Power Devco, LLC, for approval of the zone change for the Monarch Data Center”
  • What Copia's data-center venture consists of at Monarch: entitled land + a power position (Greenlink-adjacent substation access, 500 MW gas backup, 500 MW BESS) offered to a future tenant/operator. Copia has no operating
    “Copia Power has over 2.6 GW of energy generation and storage assets in operation or under construction and is actively developing over 9 GW of grid-connected data centers”
  • Winston Solar PUD (EDF) adjoins Monarch and shares landowner entities (Masini Investments, L&M Family LP); the Monarch gen-tie may cross Winston parcels. Separate project, separate permits - do not merge
    “proximity to similar development projects, for example, the, Lux Solar facility, Fort Churchill Gas Plant, Winston Solar and Storage Project, and Homestretch Geothermal Project”
  • Public commenters alleged the gas system's role had shifted from backup-only to running 24/7. Recorded in the BoCC minutes as a public concern; the underlying operating profile is NOT established - the filed narrative de
    “change from previous statement of backup generators to generators will run 24/7”
  • Interconnection status: no utility position - entitlements only (tentative PUD approved Aug. 6, 2026); No NV Energy electric service agreement and no PUCN docket names Monarch, and no NDEP air permit has been filed yet
    “The Project would connect electrically to the NV Energy Walker River 500-kV substation, approximately two miles north of the Project Site.”
  • Carlyle agrees to sell Copia Power to EQT (EQT Infrastructure VII); close expected end of 2026
    “Global investment firm Carlyle (NASDAQ: CG) today announced that it has agreed to sell Copia Power (Copia), a leading U.S. power and AI infrastructure development platform, to EQT”
  • Utility: NV Energy (Sierra Pacific Power Company d/b/a NV Energy)
    “It is intended that the Project will interconnect with the NV Energy (NVE) electric grid at or near the Walker River Substation complex”
  • Copia Power created by Carlyle's Infrastructure Group as a power (generation, storage, transmission) development platform; data centers added later under a grid-connected campus model
    “Established by Carlyle in 2021”
    Company · 2021 · grade B
  • Campus delivery depends on utility infrastructure it does not control: Copia's own timeline is contingent on completion of NV Energy's Walker River Substation complex and the Greenlink transmission project (Greenlink Wes
    “Copia Power estimates the campus will be fully operational within two to three years, contingent on the availability of utility infrastructure, specifically the completion of NV Energy's Walker River Substation complex”
  • Nearest substation of 345 kV or more: none verifiable within 16 km
    Measured on OpenStreetMap map data.
  • Nearest gas pipeline: none mapped within 16 km
    Measured on OpenStreetMap map data.
  • Aliases: Monarch Data Center Campus; Monarch Data Center Specific Plan
    “The Monarch Data Center Campus, located at 150-155 Penrose Lane in Yerington, Nevada, is a significant development project by Copia Power”
  • Bergen Data Center (Clark County) is a DIFFERENT Copia campus (Copia Digital LLC / Copia GDC LLC; PUCN 26-01035 and 24-09023; Harry Allen Substation). Its 500 MW gas figure and 500 kV lines must not be merged into Monarc
    “The two dockets do not cross-reference each other, and the reviewed records do not establish the ownership or contract links among Copia Digital LLC, Copia Power and Copia GDC LLC”
  • Yerington Paiute Tribe and Walker River Paiute Tribe both adopted resolutions opposing Monarch; the Fort Churchill / Mason Valley area is traditional food-gathering land. Walker River Paiute Chair Melanie McFalls also sp
    “Both the Yerington Paiute and the Walker River Paiute tribes released resolutions in opposition to the construction of Copia Power's Monarch data center, citing environmental and cultural concerns”
  • Entitlement status: Specific Plan / master plan amendment approved Dec 5, 2025; tentative PUD approved Aug 6, 2026 by 3-1-1 with conditions; final PUD, land purchase and state permits (water rights, NDEP air/wastewater)
    “The county’s signed August 6 final-action letter describes an eight-building, 4.6-million-square-foot, 1,000-megawatt data center”
  • Phase 1 capacity claimed at 150 MW across 2-4 buildings per application materials as reported by New Project Media and Data Center Map. The PUD narrative itself states no phase MW. Press-only claim; not carried in campus
    “The project's initial development phase is expected to support 150 MW of load, with remaining capacity built out over time depending on infrastructure readiness”
Money and contracts (21)
  • Building height max ft: 75 ft
    “subject to the condition of approval added by the Planning Commission comments and the condition that the max building height be 75 feet”
  • development agreement: status - requested, not executed
    “they made a commitment to not seek tax abatements and requested to negotiate a Development Agreement with the County”
  • development agreement: tax contribution guarantee (commitment stated at hearing) Copia committed to a Development Program guaranteeing county tax contributions higher than under a tax abatement program; $1.7B county tax
    “guaranteed to be higher than what the County would receive under a tax abatement program”
  • tax abatement: waiver commitment - applicant stated it will not seek tax abatements
    “Mr. Menahem stated they made a commitment to not seek tax abatements”
  • Water use claimed staff: under 800 acre-ft/yr
    “The applicant estimates total water consumption for the entire Project will be below 800-acre feet per year”
  • Water use claimed: under 100 acre-ft/yr
    “It is anticipated that water consumption, including that required for the data center cooling and other uses mentioned above, would be below 100 acre-feet/year across all use types”
  • utility service: finding - no executed interconnection agreement or energy service agreement none executed
    “Anticipated energy consumption will be allocated by Nevada Energy based on a load study that considers available energy resources, potential impacts to the electric grid and upgrades that may be needed to mitigate impacts”
  • easement gen tie: status - easements not obtained gen-tie (~2 mi) requires easements across NDOW land or Winston PUD parcels; above-ground interconnection needs a separate county CUP
    “The proposed gen-tie route to the Substation is anticipated to traverse north-south, along the western portion of NDOW owned land, west of the designated utility corridor, as noted in the Lyon County Master Plan”
  • gas supply: status - no gas lateral agreement; future permit lateral from pipelines ~3 mi north or ~5 mi west; alignment undecided
    “The natural gas supply to the project is anticipated to come from a new lateral line connecting existing natural gas pipelines in the region, either approximately three miles north or five miles west of the project site”
  • Stage: entitled (tentative) - Final PUD, state permits, land closing, interconnection and financing all outstanding
    “subject to the condition of approval added by the Planning Commission comments and the condition that the max building height be 75 feet”
  • finding no executed agreements: termination / cancellation / scope clauses No executed project agreements are public, so no termination, cancellation or scope clauses exist to extract. The only commitments of record are
    “Mr. Menahem stated they made a commitment to not seek tax abatements and requested to negotiate a Development Agreement with the County to find their contributions of taxes”
  • Copia hearing claims: ~$2.5B net local and state taxes over 25 years; $1.7B to the county per a Copia study, with a guarantee to pay more under a Development Agreement; Sr. Director Daniel Menahhem quoted a $15B investme
    “Mr. Menahem stated they made a commitment to not seek tax abatements and requested to negotiate a Development Agreement with the County to find their contributions of taxes”
  • sponsor acquisition: sale agreement - entire Copia Power platform price not disclosed
    “Carlyle today announced that it has agreed to sell Copia Power, a leading U.S. power and AI infrastructure development platform, to EQT”
  • Capital cost claimed alt: 12000000000 USD
    “$12 billion initial capital investment”
  • Tenants: not stated
    “The end-user for this data center remains undisclosed”
  • Tenant status: undisclosed
    “The end-user for this data center remains undisclosed”
  • tax abatement application: finding - no NRS 360.754 abatement application found none found
    “Executive Order 2026-005, signed September 17 and effective immediately, blocks an affected application from reaching the Board of Economic Development unless the applicant accepts a combined sales and use tax rate of at least 4.6 percent”
  • land purchase: status - purchase not closed not closed
    “The Nevada Independent reported August 3 that Copia held purchase options on Masini-family land. An option can let a developer pursue approvals before buying”
  • tenant lease: finding - no tenant lease exists in the public record none
    “The end-user for this data center remains undisclosed”
  • BoCC approves a Winston Solar PUD setback amendment (same landowner group as Monarch) accommodating an eastern easement - relevant to Monarch's gen-tie corridor, but Winston is a separate EDF project
    “The change reduced Winston's highway setback from 1,980 to 1,320 feet to accommodate an eastern easement”
  • Capital cost claimed: 8000000000 USD
    “Copia Power expects to invest USD 8bn billion in capital expenditures as part of the project, including USD 4bn in labor costs”
Permits and government (24)
  • Zoning: RR-5 (Title 10) / RR-20 (Title 15 conversion) to Planned Unit Development (tentative)
    “The Applicant requests a Zoning Amendment from the Title 10 district of RR-5 (Fifth Rural Residential District- 20 acre minimum) to Planned Unit Development (PUD)”
  • tentative pud zone change: approved (tentative) 3-1-1 - conditions incl. max building height 75 ft and PC-added condition language; approval does not authorize grading
    “the motion passed 3-1-1, with Comm. Hockaday voting nay, and Comm. Cassinelli abstaining”
  • Lyon County Board of County Commissioners: PLZ-2026-041 - Tentative PUD approval for the Monarch Data Center
    “Comm. Hendrix moved to approve the request from Copia Power Devco, LLC, for approval of the zone change for the Monarch Data Center”
  • County: Lyon County
    “The proposed PUD is in compliance with the Monarch Data Center Specific Plan, approved by the Lyon County Board of County Commissioners on December 4, 2025”
  • master plan amendment specific plan: approved - Master Plan designation changed Agriculture to Specific Plan
    “On December 4, 2025, the Lyon County Board of County Commissioners approved the Monarch Data Center Specific Plan”
  • BoCC approves the Monarch Data Center Specific Plan (505.4 acres, Agriculture to Specific Plan)
    “The proposed PUD is in compliance with the Monarch Data Center Specific Plan, approved by the Lyon County Board of County Commissioners on December 4, 2025”
  • Lyon County Board of County Commissioners: Monarch Data Center Specific Plan approval (Master Plan Amendment, PLZ-2025-025)
    “On December 4, 2025, the Lyon County Board of County Commissioners approved the Monarch Data Center Specific Plan”
  • Lyon County Planning Commission recommends the Monarch Master Plan Amendment / Specific Plan 6-0 (case PLZ-2025-025)
    “the motion passed by unanimous vote (6 Ayes, 0 Nay, 0 Abstentions; 1 Absent - Commissioner Ceresola)”
  • Lyon County Planning Commission: PLZ-2025-025 - Master Plan Amendment (Agriculture to Specific Plan) recommendation for the Monarch Data Center
    “Commissioner Sell motioned to forward a recommendation of approval to the Board of County Commissioners for the request from Copia Power Devco, LLC, for a Master Plan Amendment from Agriculture to Specific Plan for the Monarch Data Center”
  • Site acres: 505.40 acres
    “over two parcels subject to RR-20 (Rural Residential, 20-acre minimum) zoning totaling 505.40 acres in accordance with the Monarch Data Center Specific Plan (APNs 014-201-07 and 014-201-30)”
  • Air permit status: No NDEP air permit application or issued permit for Copia Power DevCo LLC / Monarch Data Center as of Oct. 18, 2026
    “Pending Air Quality Operating Permit (AQOP) applications table: 195 dated applications, ODS 07/26/2021 to 10/15/2026, incl; Switch, LTD and NOVVA Reno, LLC”
  • FAA status: No FAA OE/AAA case names Copia Power or Monarch within 10 NM of the site (79 cases returned)
    “FAA pull at the site returned 79 cases”
    FAA · Oct. 2026 · grade B
  • air permit: not applied for - an NDEP air permit is required before grading/construction
    “must be obtained prior to submittal of grading and building permit applications”
  • water rights conversion: required, not applied for - conversion of on-site agricultural water rights must be approved before grading/construction
    “Water rights acquisition and any modifications to the groundwater well sourcing water for the Project are subject to approval by the Nevada State Engineer”
  • wastewater permits: required, not applied for - listed among state approvals required before grading/construction
    “Wastewater from operations will be disposed of via either septic or an on-site treatment facility subject to further analysis of geotechnical conditions”
  • grading building permits: none - tentative PUD approval does not authorize grading or construction; no grading or building permits in the record
    “Comm. Hendrix moved to approve the request from Copia Power Devco, LLC, for approval of the zone change for the Monarch Data Center”
  • BoCC holds a Data Center Ordinance workshop (draft Title 15 / Ch. 336 §17 standards, 75 ft height cap, decommissioning security); residents urge a one-year moratorium. Ordinance adoption not confirmed; Monarch processed
    “to review and discuss the current draft of the Data Center Ordinance, including proposed definitions, zoning regulations, and development standards, and to provide direction to staff”
  • Lyon County Board of County Commissioners (special meeting - workshop): Data Center Ordinance workshop - draft Title 15 amendments and new Ch. 336 §17 performance standards (75 ft height standard, decommissioning financi
    “to review and discuss the current draft of the Data Center Ordinance, including proposed definitions, zoning regulations, and development standards, and to provide direction to staff”
  • Planning Commission recommends the Tentative PUD (PLZ-2026-041) to the BoCC
    “staff recommends approval of the Tentative PUD for the Monarch Data Center”
  • Lyon County Planning Commission: PLZ-2026-041 - Tentative PUD zone change recommendation (8 buildings, 1,000 MW, 500 MW BESS, 500 MW gas backup)
    “staff recommends approval of the Tentative PUD for the Monarch Data Center”
  • final pud: not filed - applicant has one year from tentative approval to file the Final PUD
    “the Lyon County Board of County Commissioners voted 3-1 with one abstention to grant tentative approval to a planned-unit development for a 1,000-megawatt data center, subject to conditions including a 75-foot maximum building height and traffic mitigations”
  • uepa permit: no docket found - searches for a Monarch/Lyon County UEPA filing by any Copia entity returned nothing (positive controls: Copia Digital LLC Docket 26-01035 and Copia GDC LLC Docket 24-09023, both for the sep
    “The PUCN docket contains an advance notice, not the detailed state permit application that would follow a final federal environmental assessment or environmental impact statement”
  • Executive Order 2026-005 imposes new statewide conditions on GOED data-center tax abatements (LSST paid in full, 4.6% minimum combined sales/use rate, Community Support Commitment). Applies to applications the GOED Board
    “Executive Order 2026-005, signed September 17 and effective immediately, blocks an affected application from reaching the Board of Economic Development unless the applicant accepts a combined sales and use tax rate of at least 4.6 percent”
  • Roughly 40 named residents commented against the PUD (water, BESS fire safety, traffic, flood plain, tribal consultation); support came mainly from LIUNA Local 169 labor officers. Opponents signaled legal and ballot opti
    “After more than six hours of public comment overwhelmingly opposing the Monarch data center, the Lyon County Board of County Commissioners voted 3-1 with one abstention”
Site and other (12)
  • BoCC grants Tentative PUD approval 3-1-1 after more than six hours of overwhelmingly opposed public comment; Final PUD due within one year; Cassinelli abstains over NNDA conflict
    “Comm. Jacobson seconded, and the motion passed 3-1-1, with Comm. Hockaday voting nay, and Comm. Cassinelli abstaining”
  • Site address: 150 and 155 Penrose Lane, Wabuska (Mason Valley), Lyon County, NV; APNs 014-201-07 and 014-201-30
    “addressed from Penrose Lane Address 150 and 155 Penrose Lane Parcel Numbers 014-201-07 and 014-201-30”
  • Name: Monarch Data Center
    “to Planned Unit Development (PUD) on approximately 505 acres of two (2) parcels for the Monarch Data Center on APNs 014-201-07 and 014-201-30”
  • Location: Mason Valley (Wabuska/Yerington), east of US Highway 95A, west of the Walker River
    “The project area is located in Mason Valley in Wabuska, east of US Highway 95A, west of the Walker River”
  • Address: 150 and 155 Penrose Lane, Yerington, NV
    “The subject parcels are currently accessed by Penrose Lane with addresses of 150 and 155 Penrose Lane”
  • Apns: 014-201-07 (240 acres, north); 014-201-30 (265.4 acres, south)
    “totaling 505.40 acres in accordance with the Monarch Data Center Specific Plan (APNs 014-201-07 and 014-201-30)”
  • Acres: 505.4 acres
    “the parcels are 240 and 265.40 acres in size for a total area of 505.4 acres”
  • EPA ECHO cwa status: No EPA ECHO CWA facility record for the campus within 10 mi of the Penrose Lane site (21 area records returned)
    “CWA pull at 39.098906,-119.160510 returned 21 records incl; LYON COUNTY JUSTICE CENTER (NVR100000) and FORT CHURCHILL GENERATING STATION (NVR050000)”
  • Greenlink dependency: Greenlink West in service May 2027; Greenlink North December 2028 (NV Energy)
    “Greenlink West is expected to be in service by May 2027”
  • Land control: not closed - parcels owned by L&M Family Limited Partnership (north) and Masini Investments (south); Copia purchase not completed as of Aug 2026 reporting
    “Property Owners L&M Family Limited Partnership and Masini Investments”
  • Recall campaign launched against four Lyon County commissioners over Monarch and related land-use approvals
    “Lyon County's fight over the Monarch Data Center has become a campaign to remove four of its five county commissioners”
  • Jobs operations claimed: 150-250 jobs
    “150–250 long-term jobs projected”

Imagery and records: Satellite and aerial imagery: Maxar and local aerial photography via Esri World Imagery Wayback.