GB-4913A-8 (also known as Energy Cell 8) is the eighth of nine Energy Cells in Metroid Prime 3: Corruption. If Samus returns to Ballista Storage after defeating Gandrayda (presumably on her way to retrieve the Spider Ball), she will have to defeat another Steamlord. Once it is felled, she can use her Grapple Voltage to overload a pair of turbines, which when destroyed reveals the Energy Cell Station.