The electricity can be at any required voltage ; in particular it can operate AC equipment designed for mains operation , or rectified to produce DC at any desired voltage .
An inverter converts the DC electricity from sources such as batteries or fuel cells to AC electricity .
The electricity can be at any required voltage ; in particular DC can operate AC equipment designed for mains operation , or rectified to produce DC at any desired voltage .
An inverter converts the DC electricity from sources such as batteries or fuel cells to AC electricity .