nuclear
Three Mile Island Restart (Microsoft)
Constellation Energy is restarting Three Mile Island Unit 1 with Microsoft as the anchor customer under a 20-year PPA. This is the second nuclear restart attempt in the US, following Palisades.
5
Risk Score
medium Risk
Risk Factors
regulatory
6/10
legal
3/10
political
3/10
community
4/10
environmental
4/10
economic
3/10
procedural
6/10
Analysis: Lower opposition risk than Palisades due to strong corporate backing (Microsoft), cleaner shutdown, and local familiarity with nuclear operations.
Timeline
1979-03
milestone
TMI Unit 2 partial meltdown (separate unit)
2019-09
milestone
TMI Unit 1 shut down for economic reasons
2024-09
milestone
Microsoft-Constellation PPA announced for restart
2024
milestone
Constellation announces restart plans
2028
milestone
Target restart date
Opposition Groups
No opposition groups documented.
Legal Challenges
No active litigation documented.
Key Arguments Against
- Historical association with 1979 accident
- Nuclear safety concerns
- NRC relicensing complexity