This is determined by the total power required by the alternating currentSee electric current. loads and the voltageThe amount of electromotive force, measured in volts, that exists... of any direct currentSee electric current. loads. Generally, the larger the loadThe demand on an energy producing system; the energy consumption..., the higher the inverterA device that converts direct current electricity to alternating current... input voltageThe amount of electromotive force, measured in volts, that exists.... This keeps the currentSee electric current. at levels where switches and other components are readily available.