Artificial intelligence and its growing energy demands dominate the headlines, especially for independent power companies like Constellation Energy (NASDAQ: CEG). Deals with hyperscalers like Meta Platforms and Microsoft have put Constellation on the map as power demands soar, but that's not the only reason to own Constellation. While AI attracts attention, Constellation's real advantage is its massive nuclear fleet.
With the largest nuclear fleet in the U.S. and a track record of efficient operations, Constellation boasts a strong competitive advantage and durable moat. As nuclear power returns to favor, that moat could become even more valuable. Act 2 Could Be 15x Bigger.
Most investors think they missed the AI boat because they didn't buy Nvidia in 2005. But according to our analysts, we're only at the end of "Act 1"—the R&D phase. "Act 2" is the global rollout.
Continue » Nuclear power is returning to favor, and for good reason. Growing power demand, combined with a desire to cut carbon emissions, makes nuclear a highly appealing choice. On top of that, nuclear provides reliable 24/7 baseload energy, making it a no-brainer for businesses and governments looking to secure carbon-free power.
Constellation boasts a massive fleet of nuclear power assets. It has 22 gigawatts (GW) of nuclear capacity, making it the largest nuclear energy operator in the U.S. by a long shot. The next-closest nuclear fleet operators include Duke Energy, with roughly 11 GW of capacity, and Vistra, with 6.6 GW.
In addition, Constellation's nuclear fleet posted a 93% capacity factor in the second quarter and 94.7% in 2025. This was the highest capacity factor in the industry, which the company attributes to its fast refueling time of roughly 21.5 days per outage compared to 35 to 38 days on average. Ultimately, this high capacity factor means Constellation can provide customers with truly reliable energy.
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