You&#x27;d want to produce methanol. Ethanol does not have sufficient energy density.<p><a href="http:&#x2F;&#x2F;phys.org&#x2F;news&#x2F;2014-11-artificial-photosynthesis-fuel-sunlight.html" rel="nofollow">http:&#x2F;&#x2F;phys.org&#x2F;news&#x2F;2014-11-artificial-photosynthesis-fuel-...</a>