The term "nuclear energy" is technically accurate but less commonly used than "nuclear power." The phrase "nuclear power" is more conventional and specifically refers to the generation of electrical power from nuclear reactions. "Nuclear energy" is a broader term that encompasses the energy released from nuclear reactions, which can then be converted into various forms, including electricity (nuclear power), heat, or other applications.

So, while "nuclear energy" is not incorrect, "nuclear power" is the more standard and recognized term in the context of electricity generation.