A power control device for regulating the power that a load consumes on the basis of the AC supply frequency. The system includes decision logic that responds to a frequency deviation to implement a power regulation strategy. The power regulation strategy includes a power compensation phase during which the electrical power that the load consumes is adjusted (reduced or increased) to balance the load on the grid. The power regulation strategy also includes a power restoration phase during which the power to the load is restored (either increased or decreased). The rate at which the power is adjusted during the power compensation phase is higher than the rate at which the power is restored during the power restoration phase.