More power related maths

From the previous post on fuels (Petrol or Diesel) 3.2 GJoules of energy costs, let’s say, $150. It follows if, assuming that the fuel is burnt most efficiently by a very good generator – giving say 30% conversion of fuel energy to electricity, then that 3.2GJoules*0.3=960 MJoules of electrical energy can be had from that fuel […]