Spaceships - "House" systems

[Daigoro]

Originally Posted by cultureulterior;1013647[B

Battery System(TL5)[Any][/B]
Gives 1/3 power point per system for 24 hours. Batteries then need to be recharged for 4 hours, using 2 power points per each system.

I don't know one way or the other whether that's a number based on reality, but the 1/3 PP seems way low for playability. Why would anyone take that instead of an equivalent power plant? It would be something useful to have onboard though.