The landscape of the independent power production sector is undergoing a structural realignment, driven by the intersecting forces of decarbonization mandates and the immense, uninterrupted power demands of the artificial intelligence sector. Constellation Energy Corporation (NASDAQ: CEG), historically recognized as the largest producer of carbon-free nuclear energy in the United States, has fundamentally transformed its operational and financial architecture. The acquisition of Calpine Corporation, finalized in January 2026, integrated 28 gigawatts of dispatchable natural gas and geothermal assets into Constellation's portfolio. This $22 billion transaction effectively doubles the company's revenue base, drastically increases its leverage, and transitions the firm from a pure-play clean energy provider to a diversified, baseload-and-peaking util ...