Articles tagged with "carbon-emissions-reduction"
Finland warms up the world’s largest sand battery, and the economics look appealing
Finland has recently activated the world’s largest sand-based thermal energy storage system, located in the town of Pornainen. This “sand battery” stores heat by using electricity—primarily from renewable sources—to warm 2,000 metric tons of pulverized soapstone contained within an insulated silo. The stored heat, which can reach temperatures up to 400 degrees Celsius, is used to supply the town’s district heating network, significantly reducing reliance on oil and wood chips. The system can store 1,000 megawatt-hours of heat for weeks, covering about a week’s heating needs during the Finnish winter, with only 10-15% heat loss during storage and recovery. The economics of the sand battery are attractive due to the low cost of raw materials—soapstone discarded from a fireplace manufacturer—and the relatively simple infrastructure. The battery allows the town to draw electricity when prices are lowest, benefiting from Finland’s clean and affordable grid, which is powered 43% by renewables and
energythermal-energy-storagesand-batteryrenewable-energydistrict-heatingcarbon-emissions-reductionFinland-energy-innovationLò phản ứng Trung Quốc lập kỷ lục hoạt động lâu nhất
energynuclear-energyCANDU-reactorcarbon-emissions-reductionpower-generationrenewable-energyenergy-efficiency