Electronics - CPU increase
Weapon Upgrades - Reduce CPU usage for weapons
Shield Upgrades - Reduces Powergrid for shield upgrade
Energy Grid Upgrades - Reduces CPU usage for anything requiring Energy Grid Upgrades skill
Engineering - Powergrid increase

Improved Fighting Skills
Energy Systems Operation - Faster capacitor recharge
Shield Compensation - Reduces capacitor usage for shield boosters
Energy Management - Increase capacitor capacity
Shield Operations - Better shield recharge times