The overwhelming majority of electricity produced worldwide is used immediately because traditional generators can adapt to demand and storage is usually more expensive. Both solar power and are, meaning that all available output must be used locally, carried on lines to be used elsewhere, or stored (e.g., in a battery). Since solar energy is not available. Electricity generation is the process of generating from sources of. For in the, it is the stage prior to its (,, etc.) to end users or its, using for example, the method. Consumable electricity is not freely available in nature, so it must be "produced", tra.