The last few years have seen a marked rise in the worldwide production of biofuels. Rising oil prices have been very influential, as have public policies, such as European Directive 2009/28/CE. To reduce the greenhouse gas emissions, this Directive urged the member States to establish a 10% biofuel share in the motor fuel market by 2020. Its adoption led to the construction of many biodiesel plants in Spain; in 2010, there were 45, but one year later, only 31 plants were working at 25% of their production capacity. Nowadays, most of the current 44 production plants are at a standstill. This situation contrasts sharply with the growing consumption of biodiesel in Spain. The key issue is that most of the biodiesel consumed in Spain is imported, around 76% of the market share in 2012 (APPA, 2013). Argentina is the largest supplier, providing almost half of the total consumed.