Abstract. Energy restore depends on the residue thermal value. The energy restore unit should receive the material energy continuesly to sustain. The material suitability problem consists of two components of quality and quantity both of which can be measured and adopted in a proper place for the energy restore unit. But, still in many countries the residues conversion has a lower priority than separatio in origin, restore and compost production. So, the measured thermal energy in the planning stage of a restore unit is altered by changing in he residue quality or quantity trough other residue conversion activities.(1)The energy restore unit should be flexible enough in facing changes in quality or quantity of material so that prevent system failure. The best time to analyze the residue suitability is the contraction time for the energy restore and selling unit construction.