Finnish scientists have created the world's first " According to the BBC, it can store green energy for months, which will help solve the problem of supplying electricity for a year..

The device uses low-grade sand and is charged with heat derived from solar and wind energy.. The sand accumulates heat at a temperature of about 500 degrees Celsius, which allows you to heat houses in winter, when such energy is more expensive.

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According to BBC, Finland gets most of its gas from Russia. Therefore, the full-scale invasion of the Russian Federation in Ukraine again raised the issue of green energy. The search for heat sources, especially in connection with the approaching winter, is acute for both residents of the country and politicians.

Therefore, the researchers developed and installed a new device - a sand battery.. The key element in it is about 100 tons of building sand, which is a simple and economical way to store energy..

Solar panels and windmills are used to generate energy, but the question remains what to do when there is no sun and wind. The answer to this challenge could be the creation of batteries that can accumulate and store energy..

Most batteries today are made from lithium, are expensive, take up a lot of space, and can only handle a limited amount of excess power.. Therefore, a group of scientists created a battery with sand, which will allow you to store energy in a cheaper and more efficient way..