Knowledge Power Up: Renewable Energy Storage Test! Which type of battery is commonly used for residential energy storage systems? Lead-acid Alkaline Lithium-ion Nickel-metal hydride None What is the purpose of a grid-scale energy storage system? To power electronic devices To store excess renewable energy To generate electricity from fossil fuels To regulate voltage in electrical grids None Which renewable energy storage solution converts excess electricity into gravitational potential energy? Flywheel Pumped hydro Compressed air energy storage Thermal energy storage None What is a key advantage of using thermal energy storage in renewable energy systems? High efficiency Low cost Small footprint Long-term storage capability None Which technology is commonly used for short-duration energy storage in grid-scale applications? Molten salt Vanadium redox flow batteries Lead-acid batteries Supercapacitors None Time's up Most Popular Most Popular