Crops that produce their own electricity, intelligent greenhouses and sun-powered cattle-feeding robots – these are just some of the new strategies emerging for natural energy production
by NORMAN DUNN
The fuel-from-the-fields revolution hasn’t lingered long with simple biogas, ethanol and biodiesel. Even second generation biofuels such as BtL (biomass to liquid), where biogas is liquefied to give highly efficient synthetic fuel, is now being overtaken by simpler, more efficient and even more climate-friendly strategies.