Corrigendum to "A comparison between renewable transport fuels that can supplement or replace biofuels in a 100% renewable energy system" [Energy 73, (2014), 110-125], doi: 10.1016/j.energy.2014.05.104

In this communication, we give the following corrigendum to the original paper, “A comparison between renewable transport fuels that can supplement or replace biofuels in a 100% renewable energy system” [1], to correct some typos and a figure which could mislead the readers:
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Firstly, the incorrect figure was inserted as Fig. 9. The existing Fig. 9 was part of the supplementary information and it represents the hydrogenation of carbon dioxide using co-electrolysis. The correct Fig. 9 is provided below, which is meant to represent the hydrogenation of carbon dioxide using steam electrolysis.
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Furthermore, the stoichiometric equations provided contain two errors relating to the energy densities provided. Firstly, the energy density used for methane in the calculations was 890 kJ/mol and not the 800 kJ/mol presented in the paper. The energy density of methane can vary across this range [2], but the issue is that the energy density assumed in the calculations is 890 kJ/mol, and not the 800 kJ/mol reported.
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Finally, the energy density reported here for carbon monoxide is incorrect. It should be 283 kJ/mol, instead of the 393 kJ/mol reported. Again, the correct energy density is used in the calculations, which is 283 kJ/mol, so this is a reporting error.