As per a study into the extractive metallurgy of aluminum, the production of 1 kg of aluminum requires temperatures around 1,000°C and an energy input of between 9 to 12 kWh, with process efficiencies ranging from 85 to 95%. On the other hand, the production of lithium demands even higher temperatures, up to 1,150°C . Both metals are produced by a fused-salt electrolysis method, but aluminum's production consumes significantly less electrical energy than lithium's, especially when weighing the other factors such as the gravimetric or volumetric capacity of each metal. Table summarizes the production requirements and parameters discussed.