Finland warms up the world’s largest sand battery, and the economics look appealing

It does not seem much, but Finland has recently launched the world’s largest sand-based battery.

Yes, the sand.

A sand battery is a heating power storage system that uses sand or crushed rock to keep heat. Electricity is typically used from renewable sources – to heat the sand. Stored heat can then be used for hot buildings, including different ends.

The economy is compulsory and it is difficult to be cheaper than crushed Severston located inside a small porn city. The soapstone was mainly trashed – the Finnish fireplace is thrown out.

Although a large lithium-ion battery package is visually impressive, the 2000 metric tone in the 49-meter extensive silage is promising from the 2000 metric tone of the pot, which helps the settlement to strengthen the city’s regional heating network.

Like many Scandinavian cities, Pornain, the house around the city operates a boiler in the central heating center for houses and buildings. Polar Night’s battery can keep heating 1000 megawatts per week in a week, and Cheill is enough for a weekly heat in Finnish winter. In order to restore the heat, only 15% of the heat is lost and the temperature in the exit may be up to 400 degrees Celsius.

The city’s district thermal system also relies on the burning tree chips, and according to the polar evening, about 60% of this consumption will decrease and the sand battery will decrease by about 60%. Heating from the battery, although the process can produce electricity, although the process will sacrifice some efficiency.

The interest in heat batteries increased as the updates become cheaper. Polar night, a large number of starting heat batteries continue. Scottish Basic Sunamp building Salt and vinegar rely on the same material that gives potatoes, chips their delights. Electrical heating solutions, TechCrunch’s starting battlefield 2023 runningcreated a type of brick that can give warmth Approaching 2000 degrees. And the fourth power makes these graphite blocks Store electricity 2400 degrees Celsius as a heat.

The battery of the Portaine is charged from the network using electricity and its mass storage capacity allows power to strengthen the operator. Finland is grid mainly renewable energy (43%) and nuclear (26%), that is, electricity is quite clean. This is also The cheapest in Europe Kilowatt-0.08 € per hour is less than the average half of the EU.

Although the polar night is cheap, the raw material has not disclosed the price of the project and itself is not particularly complicated. A smaller prototype built a few years ago $ 25 per kilowatt-hour Storage, company is estimated at time. Most likely, the new version is cheaper. Lithium-ion batteries cost around $ 115 per kilowatt-hour.