Have you implemented Quality Control -QC for efficient energy usage yet?

QC, or Quality Control, is a process that ensures the quality of production is inspected, maintained, and improved. QC helps reduce errors, increase customer satisfaction, and lower costs. It is also a key strategy that enhances efficiency and sustainability in business.

In energy management systems, QC is also necessary to ensure inspection, maintenance, and improvement. The concept of MT&R (Monitoring, Targeting, and Reporting) is applied for quality control in this context. This concept is a crucial part of energy management systems because it enables continuous monitoring of energy usage behavior, allows for the setting of concrete energy conservation targets, and, most importantly, facilitates the rapid detection of anomalies and improvement of energy usage.

SPC, or Statistical Process Control, is an essential technique within energy management systems aligned with the MT&R (Monitoring, Targeting, and Reporting) concept. This technique involves managing various types of energy-related data, such as fuel consumption and monthly production volume, to allow for clear and easy visualization of comparative (relative) data.

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The SPC technique can be applied in various aspects, including the following:

1. Continuous Monitoring of Energy Consumption Behavior

Monitoring energy consumption behavior is a crucial part of energy management. When such behavior is well understood, it becomes easier and more reliable to answer key questions such as:

• How many energy conservation measures have actually been implemented during a given period?

• When did each of those measures begin to deliver savings?

• How much energy has each measure saved?

• Are these measures still delivering consistent energy savings?

• Have there been any problems in the production process? If so, when did they occur, and when were they resolved?

• How much more potential for energy conservation remains in the system?

  
  

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2. Setting Energy Conservation Targets

   One of the most important aspects of energy management operations is setting energy conservation targets. A common approach is the top-down method, where senior management sets the targets and middle to lower-level personnel are tasked with implementing energy-saving measures to meet those targets. Alternatively, a bottom-up approach may be used, where middle and lower-level staff identify potential energy-saving measures and then set the targets themselves.

   Regardless of the approach, a common issue that arises is that the targets may be set either too high or too low. This can create challenges in effectively implementing the measures and achieving the desired outcomes.

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3.    Establishing Energy Consumption Control Lines

After setting energy conservation targets and developing an energy conservation plan (as outlined in Step 5 of the Energy Management Process under the Energy Conservation Promotion Act), and implementing the plan accordingly, the next step—after achieving satisfactory results—is to establish control lines for monitoring.

This involves using Statistical Process Control (SPC) techniques to continuously track, verify, and control energy efficiency, ensuring that it remains within the specified standards. If any abnormalities occur, the control line makes it possible to quickly identify and analyze the root cause of the issue and implement timely corrective actions.

SPC Technique

In addition to enabling continuous monitoring of energy usage behavior, setting tangible energy conservation targets, and effectively controlling energy consumption, the Statistical Process Control (SPC) technique also supports sustainable energy conservation and promotes efficient energy use in the long term.

If you are interested in efficient energy usage using the SPC technique, please contact us at Info@truewatts.co.th.

Source of knowledge:รองศาสตราจารย์ไชยะ แช่มช้อย (2554) .การใช้เทคนิค SPC กับงานการจัดการพลังงาน: โรงพิมพ์แห่งจุฬาลงกรณ์มหาวิทยาลัย