Finland tests the first sand battery

“A battery capable of storing heat for months using sand has just been presented in Finland. This world first could contribute to the energy transition”, assure The Telegraph.

According to its designers, founders of the company Polar Night Energy, this innovation is a solution to the problem of the intermittency of solar and wind energy, in particular. It makes it possible to store the energy produced in the form of heat and to restore it later, for example when the wind is not blowing or the sun has set. A solution that could accompany the development of renewable energies, necessary to fight against