The framework combined IDA (indicators decomposition analysis) and energy saving potential analysis is proposed to analyze energy efficiency for DMTO plant. The proposed analytical framework can reflect the impact of energy use by integrating level of activity

energy structure

energy intensity and other factors. The approaches for energy efficiency improving

energy consumption reduction and energy-savings can be visually discovered by proposed framework. DMTO demonstration analysis has verified the consistency and practicality of the proposed method. The presented measures can be widely applied for energy management and energy conservation practices in a solid foundation.