In an aquifer deep below the surface the water will be hot. The term generally used for a dry cell used to power a torch or small appliance. In science it refers to several electrical cells connected together to increase the voltage. A chamber where steam is cooled and condensed to water. The total amount of electricity required by customers at any one time.
Batteries produce direct current.
A machine for converting mechanical energy to electrical energy. Common name used for direct current generators. A flow of electrons moving along a wire or conductor. The ability of the electric current to do work. Measured in kilowatt-hours.