Over the last century the exploitation of resources in the energy production generated clear and indisputable devastation in the ecosystem, such as global warming or combustion and dispersion of fossil fuels in the environment. The aim of the researches conducted in the last period is both to capitalize on renewable resources to avoid the diffusion of CO2 and both to cope with the mismatch of energy production and its demand. In this scenario, Sorption Thermal Energy Storage, even though still being a technology little known, appears to play a key role in the renewable energy sources system. This technology allows to stock an high amount of energy during the warm season and then releasing it when is needed, without significant losses.