The third current source is3 is used to inject active power from an energy storage system. In addition to providing the ability to inject real power on the dc side, we will show that, with the correct choice of the LC filter parameters, the VA rating of the current source used for filtering can be substantially reduced compared, for example, to the direct current profiling case. A direct comparison with other proposed solutions is more difficult, since the VA ratings of the voltage source will be a function of the design of the entire system.