Why might a country include nuclear power in its energy mix?

• A. To maximize fossil fuel consumption.
• B. To provide low-carbon baseload electricity with high energy density.
• C. Because it produces no waste and has unlimited fuel.
• D. Because it is always the cheapest option.

Answer: (B)

Nuclear power is used in an energy mix mainly because it provides low-carbon electricity with very high energy density and strong reliability for continuous operation. A small amount of nuclear fuel yields a huge amount of energy, so plants can generate large amounts of power with relatively little fuel, helping cut greenhouse gas emissions compared with fossil fuels. Additionally, nuclear reactors run at a high capacity most of the time, delivering steady baseload electricity that keeps the grid stable and complements variable renewables like wind and solar. This combination—low carbon output, compact fuel, and reliable continuous generation—explains why countries consider including it.

It's important to note that nuclear power does produce radioactive waste that requires careful long-term management, and fuel supplies are finite (even if abundant), so it is not unlimited. Economic factors, safety, and disposal costs also influence whether it’s the cheapest option in a given region.