Pennsylvania Digital I (PAX-1)
Pennsylvania Data Center Partners / PowerHouse Data Centers. Filed, 1350 MW
A 693 acre former farm tract near Carlisle is being split into three separate data center campuses with 18 buildings total, plus a lot for an electrical substation. PPL Electric Utilities has told the township it can supply up to 1.35 gigawatts of power to the site with upgrades, and the developers have committed to reserving 400,000 gallons of water a day. As of the most recent public update the township planning commission had recommended approval of the lot lines, with a final vote by elected supervisors still to come.
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- Status
- Filed
- Operator
- Not disclosed
- Applicant on record
- Pennsylvania Data Center Partners / PowerHouse Data Centers
- Location
- Country Club Road, Middlesex Township, PA, Cumberland County, PA
- Size
- 1350 MW, 693 acres
- Cooling
- Not reported
- Utility
- PPL Electric
- First reported
- 2025
- Last updated
- August 29, 2026
What happens next
Still to come: public hearings, a rezoning or permit vote, and a utility interconnection agreement.
Sources
- Cumberland County, Pa., Data Centers Take New Step Forward, Government Technology, 2025-12-23
- Massive data center project in Cumberland County, FOX43
What it would mean nearby
The cooling design has not been reported. If it uses evaporative cooling, a 1350 MW facility would draw roughly 4.3 million to 15.4 million gallons of water a day, about what 49,200 households use.
PPL Electric distribution base rate case settlement raised residential rates 4.9% from July 2026: about $8 to $10 a month on a $184 bill. The order is meant to keep new data centers from pushing their power costs onto residential electric bills by requiring developers to pay for all of their own electricity. This does not change anyone's electric rate directly, but it is meant to stop the cost of new substations and power lines built for data centers from being added to everyone else's bill.
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Common questions
Where is the Pennsylvania Digital I (PAX-1) data center?
It is in Middlesex Township, Cumberland County, PA.
Has the Pennsylvania Digital I (PAX-1) data center been approved?
Not yet. An application has been filed and has not been decided.
How big is the Pennsylvania Digital I (PAX-1) data center?
Reported size: 1350 MW, 693 acres.
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