energy when there is no sun and no wind? Putting more illustrator artwork service renewable energy into the grid means boosting other energy sources to balance the grid, because too much or too little power in it could cause the grid to collapse. The most obvious solution to this problem is a large-scale power storage facility, which stores energy and balances power needs when green energy is added to the grid. Most current batteries are lithium-ion batteries, which are expensive to scale up, and industrial
manufacturing emits high emissions, and they can only handle a limited amount of excess power. But in Kankaanpää, Finland, some young engineers have built the first commercial energy storage device made of sand, which they see as a low-cost, low-cost way to store energy. Finnish researchers Photo Credit: BBC News Finnish researchers Yellen and Erronne were the first to come up with the idea of a sand energy storage device The product is developed by a startup called Polar Night Energy. Maku. Markku Ylönen, one of the company's two founders, said: "
With the rapid increase in existing green electricity, we can quickly store excess energy." The equipment developed by them is already used in the Vatajankoski power plant, which generates electricity for local heating. Low-cost electricity heats the sand to 500 degrees Celsius through resistance heating (which works the same way an electric stove works). The device circulates hot air through the sand through a heat exchanger. Sand is an effective medium for heat storage, and sand loses little heat over long periods of time. The researchers said their device was able to hold the sand at temperatures as high as 500 degrees Celsius for months. When energy prices rise,