Nuclear energy doesn’t move at the pace of a software company.
Nuclear projects take years, sometimes decades, and the regulatory processes are slow by design
But that same friction is also what makes the best nuclear energy stocks worth owning for the long haul. Once a company earns its position in this industry, it becomes extraordinarily difficult to displace. Here are four companies building that kind of durable advantage right now. 1.
Constellation Energy Constellation Energy (NASDAQ: CEG) is the largest nuclear fleet operator in the United States, and it has spent the last two years turning that position into something that looks more like a hyperscaler power utility than a traditional energy company. The story starts with Three Mile Island. In 2024, Constellation signed a 20-year power purchase agreement (PPA) with Microsoft to restart the plant — now rebranded as the Crane Clean Energy Center — and deliver over 800 megawatts of carbon-free power to Microsoft’s data centers in the PJM region.