Sand battery – a breakthrough in saving green energy

Countries and companies are looking for salvation in alternative energy sources in order to somehow provide themselves with cheap energy.

In Finland, for example, they developed the world’s first sand accumulator. This energy know-how is designed to solve the problem of energy production such as windmills and solar panels, which generate electricity under certain weather conditions and in certain seasons have maximum efficiency.

Sand batteries collect most of the energy generated at the Vatajankoski power plant and store it until the start of the heating season, when energy consumption rises due to the need to heat living quarters.

According to the developers of this energy-saving technology, sand in huge 100-ton tanks is heated to 500 degrees Celsius and heats the air circulating inside the chamber using a heat exchanger. Sand can be heated to this temperature for several months, as it has a high heat capacity.

At the same time, scientists did not specify how many houses such batteries can provide heat and how long they will work.