Hydrocarbon Fuel Cells for 3e

[GURPS Fox]

Originally Posted by Rupert

Back to the original problem:

A 4MW powerplant running at near maximum output for 10 hours is going to be large and heavy (especially if it's to be mounted in an off-road vehicle and thus be subjected to all kinds of bumps and shocks) and consume a considerable mass of fuel, and there's really nothing you can do about that.

Figured that out. :(