Abstract: “Energy consumption in Thai manufacturing sector in 2009 was 23,798 ktoe and accounted for 35.7% of the final energy consumption of the country and the worth of purchased fuel and electricity in Thai pulp and paper industry accounted for over 7.7% or 1,836 ktoe of the energy consumption in manufacturing sector. The major energy consumed was coal, shared 86.0% of the energy consumption in this sector, followed by electricity and petroleum products which shared 9.4% and 4.5% respectively, natural gas and renewable energy consumption is small in pulp and paper manufacturing sector. The pulp and paper industry converts fibrous raw materials into pulp, paper, and paperboard. The processes of papermaking include raw materials preparation, pulping (chemical, semi-chemical, mechanical, or waste paper), bleaching, chemical recovery, pulp drying, and papermaking. The most significant energy consuming processes are pulping and the drying sections of papermaking. Energy efficiency improvement is es”

Keywords: Energy efficiency, Pulp and paper Industry, Conservation Supply Curve (CSC), Specific Energy Consumption (SEC), Cost of conserved energy (CCE)