A nuclear fusion reaction could produce a virtually limitless and clean source of energy. This occurs when two light atomic nuclei fuse to form a heavier nucleus. This releases a large amount of energy.
You probably mean nuclear fusion, using heavy water found in the oceans. This would not be absolutely limitless, ie not strictly renewable, but as far as human existence goes it would be virtually limitless
From the nuclear reaction of burning hydrogen!
A controlled nuclear chain reaction produces heat, driving steam turbines to produce energy.
We use nuclear fission in nuclear reactors to tap nuclear energy.
Nuclear fission is the nuclear reaction used on Earth to produce electricity in nuclear power plants. In this process, uranium or plutonium atoms are split, releasing a large amount of energy that is harnessed to generate electricity.
Physicists Enrico Fermi and his team at the University of Chicago were the first to produce and describe an artificial nuclear reaction in 1942. They created the first controlled nuclear chain reaction as part of the Manhattan Project.
Nuclear Fusion
The reaction chamber in a nuclear reactor is where the nuclear fission process takes place, leading to the release of energy. It contains the nuclear fuel and control rods that regulate the reaction. The purpose of the reaction chamber is to sustain and control the nuclear chain reaction that generates heat to produce electricity in a controlled manner.
Nuclear reaction inside the Sun is fusing of Hydrogen to Helium and release out thermal energy.
The Bataan nuclear power plant uses nuclear fission as the nuclear reaction to generate electricity. In nuclear fission, the nucleus of an atom is split into two smaller nuclei, releasing a large amount of energy, which is harnessed to produce electricity.
All the nuclear fissions produce smaller elements from the larger element and few neutrons so that the fission reaction is continuously carried out.
A nuclear reactor contains a nuclear reaction, provides support for the control mechanisms for the reaction, and provides for the transfer of heat to machinery that will use it to produce electric power.