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Crane Clean Energy Center restart

The former Three Mile Island Unit 1 is being restored for a proposed return to commercial service.

Londonderry Township, Pennsylvania · Verified

Lead company · Constellation Energy

Program · DOE Energy Dominance Financing · NRC restart review

Finance closed; licensing activeHigh confidence
Deployment stage5 / 8Ready

Deployment trajectory

1Interest
2Preliminary
3Development
4Contractual
5Ready
6Physical
7Operational
8Replication

Latest milestone

DOE closed a $1 billion restart loan while NRC continued licensing reviews and restart inspections.

2026-06 · NRC Crane restart record

Open primary source ↗

Next milestone

Complete NRC licensing actions, restore plant systems, pass restart inspections, and receive approval to resume power operations.

Responsible
Constellation Energy and NRC
Key blocker
NRC approvals, component restoration, inspections, and startup execution
GenerationGen II
ScaleLarge reactor
Reactor familyLWR · PWR
RoleCommercial power
Capacity835 MWe
Reporting basisVerified