At the heart of all Virtual Energy's technologies is the Digital Control Valve. This valve technology has an incredibly fast response time while maintaining low power consumption by utilizing residual magnetism. The valve is latched by driving the actuator with a short peak current followed by a brief hold current. The state of the valve is held static with no power consumption using residual magnetism to latch its state. Feedback can be provided to diagnose valve performance and is an ideal method for providing diagnostic information.