Country
United States
AI data center dossier
Crane Clean Energy Center (Three Mile Island Reactivation)
Middletown, Londonderry Township / Middletown, Pennsylvania, United States/datacenters/three-mile-island-reactivation.html
Operator
Constellation Energy, Microsoft
Energy
Nuclear
Tracked capacity
835 MW
Grid-connection envelope | Official source
835 MW is the Crane / Three Mile Island Unit 1 nuclear power-supply value under Microsoft's PPA; there is no Microsoft data center colocated at the plant.
Evidence profile
Readiness reflects whether the record has citations, narrative context, structured power data, coordinates, and at least one dated milestone.
Readiness
100%
Sources attachedVerified
3 citations linked
CoordinatesPublished
40.1539, -76.7247
Capacity scopeScoped
Grid-connection envelope | Official source
Timeline evidencePartial
3 dated fields available
Machine-readable outputsPublished
HTML, JSON, and GeoJSON all available
Machine-readable outputs
Canonical record surfaces for audit, programmatic use, and direct citation.
Record Notes
Constellation Energy is restarting the undamaged Three Mile Island Unit 1 reactor as the Crane Clean Energy Center under a 20-year power purchase agreement with Microsoft. Constellation says the agreement will restore about 835 MW of carbon-free energy to the grid and that Microsoft will purchase energy from the renewed plant to match the power its data centers in PJM use with carbon-free energy. DOE's Crane Restart project page likewise describes an 835 MW reactor restart supported by a $1 billion loan.
ADCI keeps the selected 835 MW value but classifies it as a grid power-supply envelope, not data-center IT load. Utility Dive reports that there are no plans to colocate a Microsoft data center at the plant. The record is therefore a power-linked AI infrastructure record: useful for monitoring data-center energy procurement, but not evidence of physical compute capacity at Three Mile Island.
Analyst Flags
No obvious coverage gaps detected in the current structured record.
Timeline Signals
Announcement2024
Operational2028
Earliest market signal2024
Nearby Facilities
Other tracked AI data centers within 300 km of this location.
Related Facilities
Intelligence Reports
Structured analysis covering this facility's operator and market context.
Frequently asked questions
- How big is Crane Clean Energy Center (Three Mile Island Reactivation)?
- Crane Clean Energy Center (Three Mile Island Reactivation) has 835 MW of tracked capacity (Grid-connection envelope | Official source), located in Middletown, Londonderry Township / Middletown, Pennsylvania, United States. It ranks #30 globally by selected capacity among 294 tracked records.
- What is the status of Crane Clean Energy Center (Three Mile Island Reactivation)?
- Crane Clean Energy Center (Three Mile Island Reactivation) is currently planned. Known timeline milestones: Announcement 2024, Operational 2028, Earliest market signal 2024.
- Who operates Crane Clean Energy Center (Three Mile Island Reactivation)?
- Crane Clean Energy Center (Three Mile Island Reactivation) is operated by Constellation Energy and Microsoft. Structured intelligence reports are available for Constellation Energy Operator Report and Microsoft Operator Report and United States Country Report.
- What energy source does Crane Clean Energy Center (Three Mile Island Reactivation) use?
- Crane Clean Energy Center (Three Mile Island Reactivation) is powered by nuclear energy and is focused on power-linked ai infrastructure workloads. This is backed by 3 cited sources.