Old news but interesting in my opinion:
Thu Apr 28, 2011 2:28pm EDT
Sustainable Energy in Mexico: Interjet and Airbus Conduct First Biofuel Flight in the Country
MEXICO CITY, April 28, 2011 /PRNewswire-USNewswire/ -- The Consejo de Promocion Turistica de Mexico praised Mexico’s domestic carrier, Interjet, and Airbus for joining the ranks of Air New Zealand and Continental Airlines in leading the way for the international aviation industry by using more sustainable energy. Last month Interjet affirmed its commitment to sustainable energy in Mexico by conducting the first biofuel flight in the nation with an Airbus A320 aircraft using 30 percent biofuel developed from the jatropha plant.
Full story: http://www.reuters.com/article/2011/...idUS278068+28-Apr-2011+PRN20110428
Authorities and people involved claim the cost of these biofuels are up to 10 times more expensive, but this will tend to diminish in the long run.
IIRC, Interjet is planning a second flight. On the other hand, the airline is making strides in the domestic market and more 320s along with new Sukhoi's will join the fleet soon.