A number of features of biofuels are distinctly disadvantageous; some of these are summarised below.
1. Very large volumes of the product are required so that the production has to be on a very large scale, and usually near to the site of use.
2. As a consequence, the substrate requirement is equally large to produce which large areas of land would be needed, and often transport of this material will also be necessary.
3. The product is generally of low value and rather low profit margin the cost of production being over 75% of the sale price. This has prevented a more rapid industrialization of biofuel production.