Joule Biotech Sun-Powered Fuel - Biofuel vs Solar PV
This post was written by Paul O’Callaghan, founding CEO of the Clean Tech consultancy, O2 Environmental Inc. and lecturer on Sustainable Energy at the BC Institute of Technology.
There was much furore recently surrounding the story ‘Joule Biotech comes out of stealth with sun-powered biofuel’.
The premise is that the technology can take solar energy and use it to convert carbon dioxide directly into fuel. A one stop-shop to soak up carbon dioxide and produce a biofuel.
Having dug into it a little, the conclusion I came to is that it’s not as radical as it sounds. It is basically directed photosynthesis: same principle as oil from algae, or biofuels. The overall efficiencies are likely to be 10 times lower than that from solar PV processes, but, in terms of where biofuels are heading, it is on the right track.
