The rapid rise in temperatures due to the greenhouse effect is increasingly stimulating the scientific community to look for new ways of meeting energy needs through the production of energy from renewable sources with zero emissions. The management of the energy produced by these sources, especially the excess energy produced during periods of high resource availability and low demand, represents a challenge that is as urgent and interesting as minimising losses in energy distribution and making energy available even in the most remote places. Solutions to these issues are necessary in order for everyone to be able to meet their needs in societies that demand more and more energy (especially in electrical form) and that realised the necessity of a sustainable use of natural resources.