[Spaceships][Vorkosigan] Off-Size Systems and Power

[Langy]

An Antimatter plant (which does exist in Vorkosigan) produces 4 PP, by the 1/3 rule, a small Antimatter plant would produce 1.333PP which would be enough to power a single, normal size, high-energy system, which contradicts the statement that a small power plant cannot provide enough power for a normal system!

Yes, but there are no 3PP power plants. They likely didn't include the 1/3 rule because you'd wind up with fractional power points - which increases game complexity slightly.