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Pennsylvania Digital I (PAX) Program

Middlesex Township / Carlisle, Pennsylvania, United StatesUnder constructionProgram
Evidence
Headline capacity
See constituent sites
Updated
Oct 28, 2026
Utility
PPL Electric Utilities

An October 5, 2026 signed court order in the PAX proceedings states that the mandatory stay does not apply and schedules a November 13 hearing on a discretionary stay. A September 22 order had partly quashed the approval appeal, denied a stay without prejudice and scheduled argument for January 12, 2027. These are procedural developments, not a final merits resolution or proof of construction authorization, cancellation or power delivery; the reviewed court documents are copies hosted by an opposing party. Pennsylvania Digital I (PAX) Program covers shared infrastructure and three distinct campus stages; 1.35/1.8 GW are utility envelopes, planned utility capacity.

Constituent sites / phases

PAX Campus 1 · Data center campusPAX Campus 2 · Data center campusPAX Campus 3 · Data center campus

Capacity

Utility capacity per campus

Reported rounded

450 MW

Source

Base utility program capacity

Reported rounded

1,350 MW

Source

Future expandable utility capacity

Planned / design or future potential

1,800 MW

Source

Operating IT capacity: Not established in published records

A missing figure does not mean zero. Planned, utility and generation figures are not operating IT capacity.

Development

Campus 1 / first 450 MW utility stageUnder construction

Current sponsor page allocates the first power step to Q4 2027; state page still cites Q2 2027. Current five-to-six-building campus range is not assigned more precisely.

Campus 2 / second 450 MW utility stageAnnounced or preconstruction

Current sponsor schedule reaches 900 MW aggregate by Q2 2028. Current five-to-six-building campus range is not assigned more precisely.

Campus 3 / third 450 MW utility stageAnnounced or preconstruction

Current sponsor schedule reaches 1,350 MW aggregate by Q2 2029. Current five-to-six-building campus range is not assigned more precisely.

Expansion path above 1.35 GWAnnounced or preconstruction

Up to 1.8 GW future utility envelope; physical allocation undisclosed.

Milestones (6)
PAX joint venture and three-campus program announced

Jul 15, 2025 · Recorded actual event

Completed · Announced

Source not linked
Country Club Road general-permit acknowledgement listed

Oct 16, 2025 · Recorded actual event

Completed · Event type not stated

Source not linked
Pennsylvania Digital I general-permit acknowledgement listed

Dec 24, 2025 · Recorded actual event

Completed · Event type not stated

Source not linked
Current sponsor target for first 450 MW utility stage

Q4 2027 · Forecast / planned record

Forecast · Event type not stated

Source not linked
Current sponsor target for 900 MW aggregate

Q2 2028 · Forecast / planned record

Forecast · Event type not stated

Source not linked
Current sponsor target for 1,350 MW aggregate

Q2 2029 · Forecast / planned record

Forecast · Event type not stated

Source not linked

Participants

Pennsylvania Data Center Partners

Developer

Sources by role
Developer (1)
Developer (1)
PowerHouse Data Centers

Developer

Sources by role
Developer (1)
Other participants (1)
PPL Electric Utilities

Utility provider

Sources by role
Utility provider (1)
Utility provider (1)

Capital & incentives

Capital claims

Announced project value

Source report

$15 billion

Source

Project financing disclosed

Source report

False

Source

Site & development

Current site area

Source report

700 acres

Source

Current floor area minimum

Source report

4.5 million square feet

Source

Technical specifications

Fiber metro network access

Source report

17 metro networks

Source

Current sponsor initial power target

Source report

2027-Q4

Source

Second power step target

Source report

2028-Q2

Source

Third power step target

Source report

2029-Q2

Source

Additional project facts

Physical campus count

Source report

3 campuses

Source

Dedicated campus substation count

Source report

3 substations

Source

Direct peering market

Source report

Ashburn, Virginia

Source

Planned switching station high side

Source report

500 kV

Source

Planned switching station low side

Source report

138 kV

Source

Program capacity is operating IT

Source report

False

Source

Tenant disclosed

Source report

False

Source

Current sponsor status

Source report

Under construction

Source

Infrastructure & permits

Technical details (2)
Electric grid

Planned or represented

1,350 MW

500 kV-to-138 kV switching station and three 450 MW dedicated campus substations; expandable utility envelope to 1.8 GW.

Fiber

Planned or represented

17 metro networks

Announced access to 17 metro fiber networks including direct Ashburn peering.

Permit · Status not stated

PAX shared works / Country Club Road

Pennsylvania Department of Environmental Protection

Oct 16, 2025

Sources (1)
Permit · Status not stated

Pennsylvania Digital I shared works

Pennsylvania Department of Environmental Protection

Dec 24, 2025

Sources (1)
Permit · Status not stated

Wetland road crossing

Pennsylvania Department of Environmental Protection

Feb 25, 2026

Sources (1)
Permit · Status not stated

Pennsylvania Digital I

Pennsylvania Department of Environmental Protection

Sources (1)

Public-source research. Plans may change. See Evidence for sources and qualifications.

Related projects (3)
AWS Susquehanna / Cumulus Campus

Operational and expanding · Salem Township, Luzerne County, Pennsylvania, United States

Shared participant: PPL Electric Utilities · Same market: Pennsylvania, United States

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Nebius Highridge AI Campus

Preconstruction · Highridge Business Park, Butler Township, Pennsylvania, United States

Shared participant: PPL Electric Utilities · Same market: Pennsylvania, United States

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PowerHouse Data Centers Carlisle

Preconstruction · Carlisle, Pennsylvania, United States

Shared participant: PowerHouse Data Centers · Same market: Pennsylvania, United States

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