Elemental Shift adds a Sung counterpart to the Kartal superconducting shield generator. However, it cannot replicate the recharge mechanic for non-player vessels as it's entirely engine-side and checks for specific UNIDs rather than attributes. This means that any ship that spawns with this shield is unable to recharge it after it is depleted. It should be possible to set up new items that will hook up with this (very good!) existing system.