The difference in electric potential energy between two points is related to the voltage, which is also known as the electric potential difference. Voltage is a measure of the electric potential energy per unit charge, and it represents the work that is done per unit charge to move a charge from one point to another in an electric field. The greater the difference in electric potential energy between two points, the higher the voltage and the greater the force that drives the flow of electric charge (current) between the two points.