Bio-Fuels

 In my view, the challenge with bio-fuels, is how to insulate the food market, both locally and globally from the effect of fuel competition ?. The main problem can come with, the amount of agricultural land, that may be required, for the production of Bio-Fuel !. This can produce completion pressures which can cause a rise in food prices !. Algae may well provide a solution, though scaling up is likely to be a real challenge ! As might continuity of supply ?.

A key problem with energy supply is the shear quantity modern developing markets require. This can produce economy of sale problems, leading to too small a return for the required monetary input !.  For this reason finding a specialist local market for small scale or initial production, could prove a vital life-line !