Site · Shared context
PowerHouse Data Centers Carlisle
Preconstruction · Carlisle, Pennsylvania, United States
Shared participant: PowerHouse Data CentersSame market: Pennsylvania, United States
All records
Data center program / initiativeProgram record
Pennsylvania Digital I (PAX) Program
Middlesex Township / Carlisle, Pennsylvania, United StatesUnder construction
Capacity
See sites
3 constituent sites
Lead participant
Pennsylvania Data Center Partners
Developer
Last updated
Aug 25, 2026
Most recent public record update
About Pennsylvania Digital I (PAX) Program
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
3 linkedRelated projects
Projects sharing a market, utility, or organization.
Site · Shared context
Nebius Highridge AI Campus
Preconstruction · Highridge Business Park, Butler Township, Pennsylvania, United States
Shared participant: PPL Electric UtilitiesSame market: Pennsylvania, United States
Capacity
Operating capacity—An operating IT-capacity figure has not been publicly disclosed.
Utility Service450 MWReported Rounded · Pennsylvania Digital I (PAX) Program
Utility Service1,350 MWReported Rounded · Pennsylvania Digital I (PAX) Program
Utility Service1,800 MWReported Rounded · Pennsylvania Digital I (PAX) Program
Development
4 phases · 6 milestonesCampus 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.
Jul 15, 2025
PAX joint venture and three-campus program announced
CompletedOct 16, 2025
Country Club Road general-permit acknowledgement listed
CompletedDec 24, 2025
Pennsylvania Digital I general-permit acknowledgement listed
CompletedOct 1, 2027
Current sponsor target for first 450 MW utility stage
ForecastApr 1, 2028
Current sponsor target for 900 MW aggregate
ForecastApr 1, 2029
Current sponsor target for 1,350 MW aggregate
ForecastInfrastructure
Electric GridPlanned 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.
FiberPlanned Or Represented
17 metro networks
Announced access to 17 metro fiber networks including direct Ashburn peering.
Constituent-site map
0 of 3 constituent sites mappedChild-site facts
0
Mapped child sites
0
Capacity figures
0
No map point available
Facts & sources
Published claims and their source links.
Physical Campus Count3 campusesFact
3 campuses
PowerHouse Data CentersPennsylvania Data Center Partners and PowerHouse launch 1.35 GW PAX joint venturePennsylvania Data Center PartnersPennsylvania Digital I hyperscale campusPennsylvania Department of Environmental ProtectionSouthcentral Regional Office data center permit register — Pennsylvania Digital 1
Current Site Area700 acresFact
700 acres
Current Floor Area Minimum4.5 million square feetFact
4.5 million square feet
Dedicated Campus Substation Count3 substationsFact
3 substations
Utility Capacity Per Campus450 MWReported Rounded
450 MW
PowerHouse Data CentersPennsylvania Data Center Partners and PowerHouse launch 1.35 GW PAX joint venturePennsylvania Data Center PartnersPennsylvania Digital I hyperscale campusPennsylvania Department of Environmental ProtectionSouthcentral Regional Office data center permit register — Pennsylvania Digital 1
Base Utility Program Capacity1,350 MWReported Rounded
1,350 MW
Future Expandable Utility Capacity1,800 MWReported Rounded
1,800 MW
Announced Project Value$15 billionFact
$15 billion
Fiber Metro Network Access17 metro networksFact
17 metro networks
Direct Peering MarketAshburn, VirginiaFact
Ashburn, Virginia
Planned Switching Station High Side500 kVFact
500 kV
Planned Switching Station Low Side138 kVFact
138 kV
Program Capacity Is Operating ItFalseFact
False
Tenant DisclosedFalseFact
False
Project Financing DisclosedFalseFact
False
Current Sponsor StatusUnder constructionFact
Under construction
Current Sponsor Initial Power Target2027-Q4Fact
2027-Q4
Second Power Step Target2028-Q2Fact
2028-Q2
Third Power Step Target2029-Q2Fact
2029-Q2