Efficiency matters if we want to reduce the CO2 output. As long as the grid isn't CO2-neutral, using a lot more electricity for synthetic fuels compared to elec

Efficiency matters if we want to reduce the CO2 output. As long as the grid isn't CO2-neutral, using a lot more electricity for synthetic fuels compared to electric cars means, that the electricity could have been used to replace more CO2 production elsewhere, like heating homes.