The systems approach to improve energy efficiency in manufacturing industries

For the realization of a low carbon society with high energy efficiency, it has been requested to develop social infrastructure including high energy efficient solutions for industries, buildings, homes and transportation networks.

In the field of industrial automation, energy-saving measures have been mainly for improving productivity of the plant. However, it becomes necessary to promote energy-saving activities from the view point of building a low carbon society as well as improving productivity of the plant. There may be a limit to energy savings by individual optimization such as improving individual equipment and improvement activities by an organization. Systematic approach focusing on the overall optimization of the total energy use will provide further energy-savings in industries.

It has been an urgent task to apply advanced measurement and control technologies for improving overall energy performance.

Based on these facts, International Organization for Standardization, Industry Associations and administrative organizations have been promoting cooperative activities for the realization of a highly energy efficient society. It would be ideal for those organizations to do their best in every performance in an autonomous and distributed manner so that the overall performance can be optimized.

However, practically in some cases, means for enhancing the performance of energy savings are applied temporarily to facility/equipment, manufacturing processes, organization of the enterprise, and so on. These cases will not necessarily bring a good result as a whole.

There may be a limit to energy savings only by the optimization of individual equipment for further improvement. It is necessary to promote a cross organizational activities that are done from various perspectives and achieve the optimum solution as a whole. “Systems approach” provides such various perspectives to promote further energy savings. So, it is helpful to provide “A guide for Systems approach”.

From this standpoint, IEC/TC65 and ISO/TC301 have been developing international standards that show the approach to apply the standard to practical applications with well-organized terminologies.

This whitepaper explains “Systems approach” matching with the direction of international standardization including methodologies and linking to the practical activities for energy savings.

JEMIMA would feel amply rewarded for the whitepaper, if this whitepaper can help persons in charge of promoting energy efficiency improvement, leading energy saving project and executing practical works.

Table of Contents
1. Introduction
2. International Energy consumption trends and reasons why IEC/TC65/JWG14 was organised
3. Energy management
4. Systems approach for energy efficiency improvement
5. Production system and process control technologies for energy efficiency improvement
6. Future perspectives