The image below is 3 identical power systems stacked on top of each other the cores are just off set.
Each produces 741 e and has a little over 1 million power cap.
The missile system on the top requires 3.1 million power to fire.
The auto cannon system is 200x4x4 x 2
While this will not work for everything if you have a large high power weapon system that needs power rather doing power transfer to the ship you could create a set of stacked power supplies and dock the system to them.
Also rather than useing a dozen docked system each having their own power transfer system. You could use a multitude of stacked systems then do a power transfer off the top system only. This should cut down on issues with running to much logic, also and increase efficiency. Those systems that are docked to it directly will get a 100% power transfer rather than the partial transfer.
Each produces 741 e and has a little over 1 million power cap.
The missile system on the top requires 3.1 million power to fire.
The auto cannon system is 200x4x4 x 2
While this will not work for everything if you have a large high power weapon system that needs power rather doing power transfer to the ship you could create a set of stacked power supplies and dock the system to them.
Also rather than useing a dozen docked system each having their own power transfer system. You could use a multitude of stacked systems then do a power transfer off the top system only. This should cut down on issues with running to much logic, also and increase efficiency. Those systems that are docked to it directly will get a 100% power transfer rather than the partial transfer.