Skills that give more ship Resources:
Electronics - +5% CPU
Engineering - +5% Powergrid
Energy management - +5% Capacitor



Skills that give more ship Protection:
Shield management - +5% Shields
Hull upgrades - +5% Armor
Mechanic - +5% Structure


Upgrades:
Shield operation - -5% shield recharge time
Energy systems operation - -5% cap recharge time
Shield upgrades - -5% powergrid needed for shield mods
Energygrid upgrades - -5% CPU need for energygrid mods
Electronics upgrades - -5% CPU need for sensor mods
Weapon upgrades - -5% CPU need for all weapon kinds
Adv. weapon upgrades - -5% powergrid use for all weapons

all numbers per level