The GPHS-RTG has an overall diameter of 0.422 m and a length of 1.14 m.[1] Each GPHS-RTG has a mass of about 57 kg and generates about 300 Watts of electrical power at the start of mission (5.2 We/Kg), using about 7.8 kg of Pu-238 which produces about 4,400 Watts of thermal power.[2] The plutonium oxide fuel is in 18 GPHSs. Note that the GPHS are cuboid although they contain cylindrical plutonium based pellets.
Plutonium is a radioactive element that is primarily used as a fuel in nuclear reactors. When the atoms of Plutonium are split, it releases heat energy, which is then used to heat water and produce steam to power turbines and generate electricity.
The amount of energy generated by 2kW of Plutonium depends on a variety of factors such as the efficiency of the reactor and the amount of time the Plutonium is used. However, on average, 2kW of Plutonium can generate approximately 2,000 kilowatt-hours (kWh) of electricity.
When handled properly and with appropriate safety measures, generating energy with Plutonium is considered safe. However, the handling and storage of Plutonium must be carefully monitored to prevent any potential accidents or exposure to radiation.
The process of generating energy with Plutonium does not emit any greenhouse gases, making it a clean energy source. However, the production and disposal of Plutonium can have negative impacts on the environment if not properly managed.
The main risk associated with using Plutonium as an energy source is the potential for nuclear accidents, which can have serious consequences for both human health and the environment. Additionally, the production and disposal of Plutonium can also pose risks if not properly managed.