Engineering - To maximize the power core Electronics - To maximize the CPU Energy Management - To maximize the capacitor capacity Energy Systems Operation - To maximize the rate at which the capacitor recharges Energy Grid Upgrades - To reduce CPU requirements Shield Operation - To reduce shield recharge time Shield Management - 5% bonus to shield capacity per level Weapon Upgrades - To reduce CPU requirements by 5% per level for turrets launchers and smart-bombs Advanced Weapon Upgrades - To reduce powergridd requirement by 2% per level for weapon turrets and launchers