TLDR
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Constellation seeks NRC approval to run two New York reactors to 2049.
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CEG stock fell 1.53% to $264.58 during a weaker trading session.
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Ginna and Nine Mile Point Unit 1 face a detailed federal safety review.
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New York’s ZEC program supports nuclear jobs, tax revenue, and clean power.
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The renewals could keep key upstate nuclear assets online for decades.
Constellation Energy Corporation (CEG) has requested federal approval to operate two New York nuclear reactors through 2049. The applications cover Ginna Clean Energy Center and Nine Mile Point Unit 1 in upstate New York. CEG stock fell 1.53% to $264.58 during the trading session.
Constellation Energy Corporation, CEG
Constellation Seeks 20-Year License Extensions
Constellation filed its Ginna renewal application with the Nuclear Regulatory Commission on June 17. The company previously submitted the Nine Mile Point Unit 1 application on March 25. Approval would extend both operating licenses by 20 years and support operations until 2049.
The NRC will now review each reactor’s maintenance plans, safety systems, and plant equipment. The process will examine whether both facilities can continue operating safely during the additional period. Constellation must also meet federal operating and environmental requirements throughout the review.
Nine Mile Point Unit 2 already holds an operating license through 2046. Therefore, the latest applications would align the operating periods of the three major New York reactors. The renewals would also maintain a stable source of power for the state’s electricity network.
New York Program Supports Nuclear Operations
Constellation linked the planned investments to New York’s renewed Zero Emissions Credit program. The program compensates eligible nuclear plants for producing electricity without direct carbon emissions. State officials designed the policy to prevent reactor closures and protect reliable electricity production.
New York expects the renewed program to deliver about $50 billion in ratepayer savings by 2050. The state also projects a $38 billion economic contribution during the same period. In addition, the program could preserve 14,000 jobs and $10 billion in tax revenue.
Constellation operates four nuclear units across three locations in upstate New York. These units produce nearly half of the state’s clean electricity, according to the company. They also support local employment, public services, and tax collections in surrounding communities.
Nuclear Fleet Strengthens New York Power Supply
Ginna Clean Energy Center operates one reactor near Rochester and generates 576 megawatts. FitzPatrick Clean Energy Center operates one reactor in Oswego and produces 842 megawatts. Nine Mile Point operates two reactors in Oswego with a combined capacity of 1,907 megawatts.
Constellation spends billions of dollars to maintain, upgrade, and operate its nuclear power facilities. These investments cover safety systems, equipment replacements, workforce training, and performance improvements. The company also views existing nuclear locations as possible sites for future reactor development.
Existing facilities offer transmission links, trained workers, operating knowledge, and established relationships with nearby communities. Those advantages could reduce several barriers associated with building new nuclear generation. However, any new development would still require regulatory approvals, financing, and detailed construction plans.
CEG stock traded lower throughout the session despite a modest rebound during late-morning trading. Shares remained under pressure and recorded limited price swings during the period. The license applications now place Constellation’s New York operations within a lengthy federal review process.


