Nuclear Fusion. Current Situation and Main Challenges It Faces

Nuclear fusion energy emerges as one of the main alternatives in the medium and long term, capable of complementing the variable contribution of renewable energies. This paper will discuss its status and the main challenges it faces for its development, as well as the main elements and alternatives that will make up future fusion reactors. The international ITER project is critical to verify the integrity of all this technology. It sets out a series of milestones that will represent an intermediate step towards becoming a major contribution to the energy system, demonstrating the technological feasibility of each of its components. Key words: nuclear fusion, energy, reactor, ITER