What specific regulatory action did FERC take to support the restart of Three Mile Island, and how does it affect the timeline?

The Federal Energy Regulatory Commission (FERC) granted a waiver allowing Constellation Energy to transfer certain grid interconnection rights from its Eddystone natural gas-fired power plant to the Three Mile Island nuclear plant—now renamed the Crane Clean Energy Center. This waiver overrides an earlier determination by the regional grid operator that the plant could not supply power until 2031, thereby enabling Constellation to pursue its revised restart goal of 2027 instead.

Why is the Three Mile Island plant being restarted, and who is its intended power customer?

The Three Mile Island plant is being resurrected—under the new name Crane Clean Energy Center—specifically to supply reliable, emissions-free energy to Microsoft data centers in the region, as indicated by the news body's statement that the restart is 'to serve Microsoft (MSFT.O) data centers in the region.'

U.S. Regulator Grants Waiver for Three Mile Island Restart

Jun 2, 2026

FERC granted a waiver allowing Constellation Energy to expedite the Three Mile Island nuclear plant restart to 2027, securing power supply for Microsoft data centers.

reuters

2026-06-02

U.S. Regulator Grants Waiver for Three Mile Island Restart

U.S. Regulator Grants Waiver for Three Mile Island Restart

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