PAX-1 hyperscale campus (about 700 acres, 1.35 GW)
approved Middlesex Township (near Carlisle), Cumberland County, Pennsylvania
DeveloperPowerHouse Data Centers and Pennsylvania Data Center Partners
UtilityPPL Electric Utilities
Capacity1350 MW
Investmentunknown
Latest
2026-10
The developer pushed its tenant reveal and later-phase deadlines to February 2027 amid zoning litigation; the township approved the first six buildings in September
Notes: Promoted from chatter. Sixteen buildings across three campuses, each with a 450 MW substation, per PPL. Families' spot-zoning challenge is set for an evidentiary hearing Nov. 13.
Upcoming hearings
- 2026-11-13: Cumberland County Court of Common Pleas, Evidentiary hearing on the merits of five families' spot-zoning challenge and request to halt PAX-1 work
- 2027-01-12: Cumberland County Court of Common Pleas, Oral argument on residents' land use appeal of the PAX-1 Phase 1B approval (also listed by datacentercensus.com)
Sources: PennLive · FOX43 · PowerHouse