Analysis Model for Energy Consumption in Manufacturing Enterprises Based on Input-Output Theory and its Applications

Abstract

Analysis of energy consumption which could explore energy saving potential is of important significance for energy saving in manufacturing enterprises. An analysis model including physical and monetary input-output models for energy consumption in manufacturing enterprises based on input-output theory is constructed. Physical and monetary energy consumption coefficient matrices are obtained from the analysis model. Then, some application ideas are proposed, including vertical and horizontal comparison of coefficient matrices elements of a manufacturing enterprise in per unit time, comparison of coefficient matrices elements of a manufacturing enterprise in different unit times, comparison of coefficient matrices elements of manufacturing enterprises within the same industry in per unit time, effect analysis of energy price change to energy consumption of a manufacturing enterprise. Finally, a case study of a heavy-machinery manufacturing enterprises validates its practicability.

The business accounting matrix: a proposal with an application

“…At enterprise level, physical data is more accessible, which opens an interesting range of research options. Following an IO approach, Li et al (2009) prepared both physical and monetary energy consumption matrices. They applied their results to heavy-machinery companies, with the aim of studying different issues, such as the description of energy use, the analysis of energy-saving policies and the impact of energy price changes.…”

Energy consumption model and its simulation for manufacturing and remanufacturing systems

“…What is more, the amounts of different energy depend on different facilities. Input-output model proves to be a useful tool to solve above problems [23]. So, it's reasonable to analyze the process of energy consumption with DEVS and input-output model, and establish WS, upstream, machine, and downstream model, respectively.…”