【RMI】2025电子制造业净零转型制造设施能源效率提升策略与实施框架研究报告_32页_952kb

Summary of "Towards Net-Zero Electronics"

Core Content

This document discusses the importance of energy efficiency in the electronics manufacturing industry, particularly in final assembly, testing, and packaging (FATP) facilities. It outlines strategies for retrofitting existing facilities and planning for energy efficiency in new ones, emphasizing the role of energy management systems (EMS) and the potential for significant emissions reductions and cost savings.

Main Points

1. Why Supply Chain Energy Management Matters in the Electronics Manufacturing Industry

• Industry Growth: The electronics manufacturing industry is rapidly growing, driven by digitization, automation, and technologies like 5G, IoT, and AI.
• Market Size: The global electronics market was valued at $1.275 trillion in 2023, with Asia-Pacific and North America as key drivers.
• Environmental Impact: The electronics industry contributes over 4% of global greenhouse gas emissions.
• Energy Efficiency Role: Energy efficiency is a critical lever for reducing emissions and is called the "first fuel" by the International Energy Agency (IEA).
• Economic Benefits: Energy efficiency measures (EEMs) can lead to significant cost savings, with some projects achieving up to 30% energy savings in existing facilities.
• Scope 3 Emissions: Supply chain emissions, especially Scope 3, are a major focus due to their indirect nature and significant contribution to total emissions.

2. Retrofitting Existing Facilities for Energy Efficiency

• Urgency for Upgrades: Many FATP facilities in China built 10-20 years ago require urgent energy upgrades and equipment modernization.
• Energy Audit Importance: Conducting a comprehensive energy audit is the first step in identifying baseline consumption and defining project boundaries.
• Key Systems for Efficiency: The production, HVAC, and process air systems are the largest energy consumers, accounting for 32%, 30%, and 28% of total consumption, respectively.
• Energy-Saving Potential:
  • Process air and HVAC systems have the highest potential for energy savings (43.5% and 36.8% respectively).
  • Production equipment, though the largest consumer, has limited improvement potential.
• Standards and Regulations:
  • Global standards like ISO 50001 and ISO 50004 provide frameworks for EMS implementation.
  • China has adopted similar standards and introduced incentive policies for local manufacturers.

3. Planning for Optimum Energy Efficiency in New Facilities

• Integrated Design Approach: New FATP facilities should be planned with an integrated design to maximize energy efficiency from the outset.
• Key Principles:
  • Building and facility layout should support energy efficiency.
  • Use of efficient systems and equipment is crucial.
  • Control and monitoring systems should be optimized for real-time energy use.

Key Information

Energy Audit Considerations

• Comprehensive Coverage: Audit should include all major energy consumers like production lines, processes, and equipment.
• Advanced Tools: Thermal imaging and real-time energy monitoring are recommended for accurate assessment.
• Energy Intensity Mapping: Focus on energy intensity (energy per unit of production) for better comparison and improvement identification.
• Stakeholder Engagement: Involving facility operators, maintenance teams, and management is essential to address non-technical barriers and ensure successful implementation.

Energy Efficiency Measures (EEMs) in Key Systems

1. Process Air System

• CDA System:
  • Replace low-efficiency compressors with high-efficiency models.
  • Recover waste heat from compressors (payback <3 years).
  • Use lossless dryers and drains (payback <3 years).
  • Optimize air inlet and outlet (minimal investment).
  • Repair pipeline leaks and optimize layouts (payback <6 months).
  • Implement VFDs and control strategies (payback <2 years).
• Vacuum System:
  • Replace vacuum generators with pumps.
  • Use more efficient vacuum generators.
  • Reduce vacuum usage by optimizing hours or using mechanical alternatives.
• Nitrogen System:
  • Detect and repair leaks.
  • Optimize PLC settings for nitrogen production.

2. HVAC System

• Chiller:
  • Upgrade to high-efficiency chillers (payback 2–10 years).
  • Regular heat exchanger cleaning (payback <2 years).
  • Select chillers with low environmental impact.
• Chilled and Cooling Water System:
  • Insulate pipelines and increase chilled water temperatures.
  • Make hydraulic adjustments and use cooling towers for free cooling (payback <2 years).
  • Upgrade to efficient VFDs for pumps.

Conclusion

Energy efficiency is a vital component in achieving net-zero goals for the electronics manufacturing industry. Retrofitting existing facilities and planning for new ones with integrated design principles can lead to substantial emissions reductions and cost savings. By focusing on key systems like process air and HVAC, and implementing targeted EEMs, manufacturers can significantly improve their energy performance while maintaining operational integrity and quality.