Dominion Energy on Monday marked the 50th anniversary of its Unit 2 nuclear reactor at Millstone Power Station, highlighting the nuclear plant’s longevity as the company moves toward seeking federal approval to keep it operating for another three decades.
Dominion on Monday also disclosed it has told the Nuclear Regulatory Commission it plans to pursue subsequent license renewals for Millstone’s two reactors. If approved, Unit 2 could run until 2055 and Unit 3 until 2065. Their current licenses expire in 2035 and 2045, respectively.
Millstone, Connecticut’s only nuclear facility, is a cornerstone of the state’s electricity system. Officials say the plant supplies a significant share of New England’s carbon-free power, providing steady output as the region works to expand renewable energy.
Gov. Ned Lamont joined company leaders and plant employees at an anniversary event, calling Millstone essential to meeting the state’s climate and reliability goals.
Millstone has long been the subject of policy debate in Connecticut. State lawmakers approved subsidies in 2019 to keep the plant open after Dominion warned it could close without financial support. Proponents point to its role in stabilizing energy costs and reducing emissions, while critics raise concerns over subsidies and the long-term storage of spent fuel.
