Supply chain / Nuclear
Constellation Crane Clean Energy Center restart
Constellation's plan to restart Unit 1 at the former Three Mile Island site, with Microsoft contracted to take the carbon-free power.
- Type
- Programme
- Where it sits
- It shows an existing reactor being returned to service for a data centre customer, a different route from new-build SMRs.
- Constraint
- The restart is described as possible as early as 2027 and relies on regulatory approvals and PJM interconnection, so it is not yet operating (Constellation release, June 2025).
What we checked
- Constellation said it plans to restart Unit 1 as early as 2027, and that Microsoft will receive the plant's carbon-free electricity. (source)
- The release says PJM approved an expedited interconnection request for the project. (source)
Written by ComputeFinder from public pages on 2 October 2026. Company statements are the company's own, not independently checked, and reported items are marked as such. Not yet reviewed line by line by a second person. If something is wrong, tell us.