These are technologies used to store electricity produced from various sources, such as solar or wind power, for later use. These systems include batteries or energy storage tanks that allow excess energy to be stored during periods of high production (such as during the day in the case of solar power) and used when needed (such as at night or during peak periods). Energy storage systems contribute to enhancing the stability of electricity supplies, maximizing the use of renewable energy, and reducing reliance on the traditional electrical grid.