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Site 02 of 04 · Anthropic capacity proposal Not for distribution

Sun Mesa, Arizona

Navajo County · APS territory · former Cholla coal hub

An energised EHV node delivering a 60 MW anchor on request, with a contractual path to 750 MW behind the meter.

Anchor60MW · on request
Path to750MW · per site
First powerQ4 2027mobile skids
Land6,880ha · 17,000 ac
StructureApollo · NVIDIA
PowerAPS · Ameresco

Position

The scale site in the portfolio. A retired 1.1 GW coal hub leaves a live double circuit 345 kV and 500 kV backbone in the ground, and generation, storage and load are studied at a single point of interconnection, so power reaches the campus without waiting on transmission deliverability. Land is measured in thousands of hectares rather than parcels, which is what turns 750 MW into a floor rather than a ceiling. Dry air at 1,707 m of elevation makes the dry cooler path the default here, and waste heat is a value add to partners on site.

Site and control

Current optionsLOI secured, anchor parcelWWW ha · WWW ac
Path toExpansion land under the same platform12,140 ha · 30,000 ac
Industrial and DCServiced envelope inside the campus809 ha · 2,000 ac
InstrumentLOI, then conditional PPA, then option reviewConditional PPA
ZoningGeneral A and C 2, industrial and commercialIn pathway
DesignationQualified Opportunity Zone, Coal Closure CommunityITC 48E, 45Q and 45V

Power and energisation

Firm grid at the switchyard plus generation, storage and load studied at one point of interconnection. Mobile transformer skids carry the anchor ahead of the permanent connection, so revenue begins before the campus completes.

path ceiling · 750 MW WW MWWWW MWWWW MWWWW MW P1 anchor · Q4 2027P2 grid+BTM · Q4 2028 P3 ramp · QW 20WWP4 full · Q3 2029

Rent commences per phase on delivery of the applicable premises. Path to 750 MW structured as a right of first offer on adjacent capacity.

Firm grid

1,500 MW

APS at the switchyard, double circuit 345 kV and 500 kV.

online 2027
Behind the meter

1,500 MW

Solar with 1,500 MW and 18,000 MWh of storage, same POI.

incremental to 20WW
Fast start

200 MW

Mobile transformer skids, 50 to 200 MW, no permit.

carries anchor
Efficiency

PUE W.WW

Alongside ERE W.WW, dry cooler first.

under check
04 · Interconnection
Grid supply1,500 MW · 2027
Point of interconnectionQ609 and LP 00108
Distribution345 kV and 500 kV
Grid integrationNew 345 kV switchyard
Front of meter path3,000 MW · 20WW
ReversibilityBidirectional
05 · Fuel and generation
Gas pipelinesTwo existing, onsite
Firm transport2.7 bcf per day available
Per client call0.25 bcf per day
Precedent agreement20WW to 20WW
Geothermal500 to 1,000 MW
Commodity$W.WW per MMBtu
06 · Permitting and entitlement
County approval3 to 4 months
Letters of supportCounty and city
ESA phase 137,230 ha · 92,000 ac
Air permitTo confirm
Financial closeQW 20WW
07 · Water and cooling
Cooling pathDry cooler first
SourceOnsite groundwater wells
Aquifer69,930 km2 · 27,000 sq mi
Cooling waterWWW m3 per day
AllocationClosing condition
08 · Connectivity and logistics
FibreThree major providers on site
Dark fibre3 ms
RoadI 40 corridor
RailBNSF adjacent
Phoenix3.0 hours
09 · Site conditions
Elevation1,707 m · 5,600 ft
Annual mean13.9 C · 57 F
HumidityLow
Solar irradianceHighest in the United States
Natural disasterLow risk

Deployment schedule

QW 20WW
Land control and LOI
Anchor parcel under LOI, path defined.
QW 20WW
Conditional PPA and option review
Conditional PPA agreed, option reviewed on confirmation.
QW 20WW
Long lead equipment and permitting
Step down transformers drawn from supplier stock, county approval initiated.
Q4 2027
Anchor energised
Mobile skids carry WW MW, first revenue begins.
Q4 2028
Grid and behind the meter online
Firm grid at the switchyard plus first storage backed block, WWW MW.
Q3 2029
Full path capacity
Behind the meter ramp complete to 750 MW.

Capital and deal structure

Offtaker
Anthropic
Phased lease, rent per phase
Developer
MicroLink SPV
Bankruptcy remote, per site
Capital
Apollo
Private credit, off books
Credit wrap
NVIDIA
Parent guarantee on rent
Power partner
APS · Ameresco
Grid, microgrid operations and EPC

Apollo's commitment is contingent on a locked site and a locked customer, so the Anthropic offtake and this campus together are the trigger.

Economics

MetricBasisFigure
Contracted lease valueFull path, base term$WW.W bn
Implied rentPer critical IT MW per year$W.WW M
Development costShell, power, cooling, land, network$WW M per MW
SiliconTenant funded, excludedTenant
Net operating income marginTriple net, at scaleWW%
Yield on costInferredWW.W%
Anchor drawApollo first phase$W.W bn

Risks and caveats

LiveConditional PPA. The power purchase agreement is conditional and the final option review is gated on confirmation from Anthropic.
LiveLand LOI clock. The letter of intent carries a near term expiry and a financial capacity showing on signing.
OpenLoad queue depth. A further 4,500 MW sits pending in the load queue at this node, and study sequencing is the primary timeline risk.
OpenGeothermal maturity. The onsite volcanic formation is unproven at commercial scale and is excluded from the firm path.
OpenGas precedent agreement. Capacity reservation is not yet signed and sits outside the anchor critical path.
OpenLease term and rent. Base term, escalator and take or pay are not set. Every figure here is a placeholder.