No, one tonne of diesel fuel contains about 11 MWh of potential energy as determined by calorimetric methods. One tonne of fuel when consumed produces a variable amount of useful energy output depending on the efficiency of the engine.
If you said fuel was 5.5 MWh per tonne people would wonder what you cut it with.
The reality of outputting 80MW is that the power to your lights is a rounding error and you’d be better off buying a robot to regularly clean the hull.
> No, one tonne of diesel fuel contains about 11 MWh of potential energy as determined by calorimetric methods. One tonne of fuel when consumed produces a variable amount of useful energy output depending on the efficiency of the engine.
That’s almost correct, good try.
> lights is a rounding error
Ships use electrical power for far more than lighting, and no electricity is not a rounding error compared to profit it’s a significant expense for cargo ships.