Energy efficiency regulations for cement and paper industries based on maximum allowed specific energy consumption

Panel: 1. Policies and programmes to drive transformation

This is a peer-reviewed paper.

Authors:
Tze-Chin Pan, Industrial Technology Research Institute, Taiwan
Chien-Ming Lee, National Taipei University, Taiwan

Abstract

In Taiwan, the industrial sector is the largest energy consumption sector and responsible for approximately 37% of the country’s total energy consumption. To improve the energy efficiency of the industrial sector, the Bureau of Energy in Taiwan issued energy efficiency regulations for six energy intensive industries. The energy efficiency regulations set the maximum allowed specific energy consumption (SEC), i.e., the total energy consumption per unit of product produced for cement and paper industries and stipulate the operating conditions of utility facilities for the other four energy intensive industries. The SEC for three systems of cement plants (raw material and clinker system, rotary kiln system, and grinding system) and for seven products of paper industries, including liner board and toilet tissue paper, are limited by the regulations. The value of the maximum allowed SEC is set equal to the upper 70th percentile of SEC in the same product category to compel the low energy efficiency plants to raise their performance.

The energy efficiency regulations for cement and paper industries came into force in 2015. From 2015 to 2016, the regulations for cement and paper industries controlled 20 cement plants and 27 paper plants and contributed toward the energy saving of 1,359 TJ, which was approximately 1.1% of the total energy consumption of the cement and paper industries. According to a survey conducted in this study, 65% of respondents from the cement plants and 54% of respondents from the paper plants agreed that the energy efficiency regulation is an important impetus for improving plant energy efficiency. Furthermore, 77% of the cement plants and 86% of the paper plants thought the SEC of their products has been improved in the past three years.

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