Ok, works for submarines.
Check this out:
From the moment Prometheus stole fire from the gods and presented it to us, humanity has been concerned with how to fuel our need for energy. One contested, yet efficient and effective, energy source is nuclear power. Approximately 13% of the world’s energy needs currently are met by nuclear power plants, with leading users including Finland, Japan, South Korea, Switzerland and Ukraine. France gets three-quarters of its electricity from nuclear reactors. Uranium is the fuel used in conventional nuclear reactors, and the Global X Uranium ETF (URA) is the exchange-traded fund (ETF) that tracks stocks in the uranium industry.