Is there enough biofuel?

Biopact reports

According to scientific projections, the planet has a very large sustainable bioenergy potential, estimated to be around 1550 Exajoules per annum by 2050 (the world’s total current energy consumption from all sources – coal, oil, gas, nuclear, renewables – is approximately 450Ej).

Theoretically, this much bioenergy can be produced after [emphasis added] meeting all food, feed, fiber and forest products needs for growing populations and without deforestation (previous post).

But this massive potential can only be tapped on the condition that agriculture in the developing world – where most of it can be found – improves by adopting modern farming techniques.