from a single type of input material for example biotechnological processing of plant biomass into methane methanol hydrogen and ethanol as shown in fig2 fig2 fig2 and fig2 there can be derivation of several energy carriers from several types of input materials for instance biotechnological processing of heavy oil fractions brown coal and plant biomass into methane ethanol and combustible oils the complex technology for production of energy carriers is considered such not only because it combines several homogeneous technologies u2014 other reasons also exist this complex technology provides energy carriers accompanied by the processing of waste with a lower level of environmental pollution by chemical substances serum oxide ozone nitrogen oxides various heavy particles u2014 al fe ca si c sb se zb pb etc carbon monoxide polynuclear aromatic carbon hydroxides etc in addition there is the production of various input supplies for manufacturing of materials and chemical substances the production of fertilizer and a lower level of co 2 in the atmosphere which may reduce the greenhouse effect and act as a means of carbon sequestration eph may enhance the process for microbial solubilization of coal that has been described in u s pat no 4 914 024 by strandberg and u s pat no 4 882 274 by pyne et al which are hereby incorporated by reference in their entirety.