How much biodiesel would be required to completely replace petro-diesel? What % of this is available currently?
The current world consumption of petro-fuels is about 12 Million Tons per day = about 5 billion T per annum. Since the energy provided by biodiesel is slightly (about 10%) lower than that of petro-fuels, the world would require about 5.5 billion T of bio-diesel to completely replace petro-diesel, at the current levels of consumption. The total world production of vegetable oils was only about 0.06 billion T in 2005. That is, the total production of vegetable oil in the world is just one-hundredth of what will be required for complete replacement. It is easy to see that it very early days for biodiesel.
