power cores provide power from fuel for crucial parts of the ship like life support, shields, etc. There are various power core technologies that can be researched through out the game, each with a different base power output. The efficiency mod will adjust power at the expense of more fuel consumption the size modifier will adjust power output the expense of mass increase while preserving fuel economy. Again the trade off between cost, power, mass and fuel consumption must be made according to the role that the ship that uses this power core design will have.
Power core mods
power core mods enable to extract more power output from a power core at the cost of burning more fuel per turn while keeping the mass low.
Power core size
Power core size defines the number of parallel cores that will be installed. This will increase the power output from the power core while conversing fuel, but will increase the mass.