According to Wikipedia [1] jet fuel has 43 MJ/kg and lithium ion batteries with silicon nanowire anode have 1.566 MJ/kg. With that you get get 714 kg of batteri

According to Wikipedia [1] jet fuel has 43 MJ/kg and lithium ion batteries with silicon nanowire anode have 1.566 MJ/kg. With that you get get 714 kg of batteries for 26 kg of jet fuel. The Tesla Model S 85 kWh battery has 0.57 MW/kg [2] which gives 1961 kg. Looking only at the energy density, the numbers from the article seem quite optimistic for the battery weight, but it is not clear what they actually calculated and I guess their numbers might contain factors accounting for efficiency. Do they account for the difference in weight, of the energy source and energy conversion mechanism, 26 kg vs 600 kg is nothing were I would expect similar performance? [1] https://en.wikipedia.org/wiki/Energy_density https://en.wikipedia.org/wiki/Energy_density [2] https://en.wikipedia.org/wiki/Tesla_Model_S#Battery https://en.wikipedia.org/wiki/Tesla_Model_S#Battery