Finnish engineers have installed the world’s first “sand battery”. Sand is used to store wind and solar energy in the summer as heat, which can then be released in the winter to heat homes and offices.
thisIt is likely to be complex for many European countries, especially those that rely heavily on Russian. This deficiency can be partially compensated by increasing the number of facilities . However, the production To completely depend on it without installing too usually in , expensive to produce. Perhaps a Finnish company has found a solution With seasonal battery based .
Just completed its first commercial facility in Kankanba City. Its battery takes the form of a silo filled with sand from . When there is excess electricity production, the surplus is used to heat the sand up to 500°C. This sand, completely ordinary, can maintain this . The battery, which is about four meters wide and seven meters high, contains about 100 tons of sand. It has a capacity of 8 megawatts (megawatt-hours) and a heating power of 100 kilowatts (kilowatts).
A solution without dangerous products
This energy is not converted back into electricity when demand increases because the yield is currently quite modest. On the other hand, the stored heat can be kept until winter and transferred to the wateroffices and even a local swimming pool. It is a solution that does not use any of them Dangerous, requires little maintenance and can operate for decades.
The next step will be to create a file. The engineers said the next could be a thousand times bigger. According to the company, the internal temperature of the battery can reach 1,000 degrees Celsius, with a capacity of 20 gigawatt-hours (GWh) and a power delivery of 100 megawatts (megawatt). It already offers huge benefits for winter heating, but if engineers can figure out how to efficiently convert heat back into electricity, a sand battery could revolutionize the .