1. Another non-renewable source is uranium. Uranium is an element that us nuclear energy by splitting an atom's nucleus, and this process is called fission.
2. Photovoltaics may well make a significant contribution to world needs in coming decades, but at its share of world consumption is extremely small.
3. Wind power, in the form of traditional windmills used for grinding corn or pumping water, has been use for centuries.
4. Another, newer tidal energy technology involves the use of underwater turbines (rather like submerged wind turbines) to the strong tidal and oceanic currents that flow in certain coastal regions.
5. Renewable energies are also relatively ‘sustainable’ in the additional sense that their environmental and social impacts are generally more benign than those of fossil or fuels.
6. In summary biomass has the potential to contribute to reduction, convenience and possibly economic development.
7. The cost of manufacturing biodiesel currently is greater than petro-diesel although with the volatility of conventional oil prices we are not a figure.
8. Obviously, the higher the proportion of biodiesel in a mixture, the these noxious exhausts are reduced.
9. The 5% mix can be used in most petrol vehicles but the 85% mix is to a very small number of current vehicles.
10. Also we note there is a need for monitoring and control of the production processes.