Is nuclear energy considered sustainable?

Instead of using fossil materials, nuclear energy is produced by splitting atoms through a process called fission.

Enriched Uranium (U) has an exceptionally high energy density compared to other electricity generation methods, whether or not they involve fossil fuels (such as coal, fuel, oil, or natural gas).
It contains a significant amount of energy per unit mass, making it a potent fuel source for electricity production.

While nuclear energy is not renewable, it plays a crucial role in achieving an efficient energy transition and ensuring success.