South African scientists have designed a novel gravity energy storage system that uses linear electric motors to vertically move multiple solid masses to store and discharge electrical energy. They say its levelized cost of storage (LCOS) is $137.20/MWh, but with efficiency improvements, it could drop to about $100/MWhScientists from Stellenbosch University in South Africa have designed a new gravity energy storage system, based on linear electric machines (LEM), that could be used in decommissioned mines. "The system is suitable for renewable energy sources in particular wind and solar and is ...Den vollständigen Artikel lesen ...