2024-11-03-亚开行-重建更好的行业指南——第6卷_力量（英）_40页_5mb

Build Back Better Sector Guides: Volume 6 - Power Summary

Core Content

The Build Back Better (BBB) Sector Guides: Volume 6 - Power is part of a series aimed at supporting the Asian Development Bank (ADB) and its Developing Member Countries (DMCs) in enhancing climate and disaster resilience through effective post-disaster recovery and reconstruction. The guide focuses on power systems and provides insights into good practices, considerations, and lessons learned for building back better in this sector.

Main Objectives of the Guide

• To support ADB staff, consultants, and DMC counterparts in making power systems more resilient to future disasters and climate change.
• To promote the integration of climate and disaster risk reduction measures into post-disaster recovery planning.
• To leverage the global and DMC energy transition to build more sustainable, low-cost, and flexible power systems.

Key Views and Principles

• Resilience is critical in post-disaster recovery to ensure long-term socioeconomic development and reduce future disaster risks.
• ADB plays a vital role in mobilizing rapid technical support and financing through mechanisms such as the Asia Pacific Disaster Response Fund and Emergency Assistance Loans (EALs).
• The Sendai Framework for Disaster Risk Reduction and the 2030 Agenda for Sustainable Development underpin the BBB approach, emphasizing a comprehensive and inclusive strategy.

Main Points and Key Information

Disaster Impacts on Power Systems

• Power systems in Asia and the Pacific are highly vulnerable to natural disasters, especially extreme weather events and geophysical hazards.
• Disruptions can affect multiple sectors, including health, transport, telecommunications, food production, and water supply.
• Power failures can lead to secondary hazards such as electrical fires and flooding due to malfunctioning pumping systems.

Recovery Objectives

• Post-disaster recovery efforts should aim to increase resilience to future events.
• They should leverage global energy transitions to promote clean and renewable energy systems.
• Recovery should also support long-term economic and social development, including improving access and affordability for end-users.

Resilience Measures for Power Systems

1. Distributed Electricity Generation and Storage Technologies

• Post-disaster recovery is an opportunity to deploy distributed energy systems such as solar and wind generation.
• These systems can improve resilience and flexibility, especially in areas with limited grid access.
• Storage technologies, such as batteries, are essential to manage intermittent energy sources and ensure a stable power supply.

2. Microgrid Technologies

• Microgrids provide localized, reliable power in disaster-affected areas.
• They can be relocatable and customizable, making them suitable for temporary or long-term recovery.
• Microgrids are particularly useful in remote and underserved regions, enabling community-based power solutions.

3. Resilient Transmission and Distribution Systems

• Traditional systems are often centralized and vulnerable to cascading failures during disasters.
• Resilient T&D systems should be designed to withstand shocks and include backup and redundancy.
• The recovery period is an ideal time to upgrade to modern, efficient, and low-emission technologies.

4. Resilient Equipment Standards

• Using high-quality, resilient equipment can minimize downtime and improve system performance during and after disasters.
• This includes efficient transformers, upgraded cables, and renewable energy systems.
• Equipment standards must be aligned with future energy needs and climate risks.

5. System Dependencies

• Power systems are often interdependent with other critical infrastructure (e.g., water, transport, health).
• A failure in one component can lead to system-wide outages, especially in areas with damaged T&D networks.
• It is essential to identify and mitigate interdependencies to prevent cascading effects.

6. Power Sector Control, Monitoring, and Modeling Systems

• Modern control and monitoring systems are necessary to manage power supply and demand effectively.
• These systems should be robust against digital threats, including cyberattacks.
• Cybersecurity measures such as encryption, authentication, and intrusion detection systems are critical to protect new and smart power systems.

7. Power Sector Capacity Building

• Capacity building is essential to ensure long-term resilience and sustainable development.
• This includes training utility staff, installers, and suppliers on new technologies and practices.
• It also involves improving institutional frameworks and policy alignment to support the energy transition.

Project Examples and Case Studies

• Tonga's Power System Recovery after Cyclone Gita:

  • Demonstrates the importance of resilient T&D systems and analytical tools.
  • Shows how redundancy and backup systems can be used to restore power quickly.
  • Highlights the role of community-based applications in enhancing BBB outcomes.

• Yap Renewable Energy Development Project:

  • Illustrates the shift toward distributed and renewable energy systems.
  • Demonstrates how changing energy consumption profiles must be considered in system design.
  • Shows the impact of increased energy demand on system planning and scalability.

Considerations for Post-Disaster Power Projects

Box 2: Key Considerations

• New players: Post-disaster, new stakeholders such as NGOs, philanthropists, and retailers may enter the market, potentially disrupting local energy markets due to uncoordinated activities.
• Shifting landscape: Energy systems are evolving due to technological advances and policy changes, requiring future-proofing in reconstruction.
• Barriers to change: Existing contracts, policies, and incentives may hinder the transition to clean energy, necessitating policy reform and support.
• Changing consumption profiles: Historical data may not reflect future energy needs, especially in the context of population growth and new technologies.
• Risk from digital attack: Smart grids and digital systems are more vulnerable to cybersecurity threats, requiring comprehensive protection measures.

Conclusion

The Build Back Better Sector Guides: Volume 6 - Power emphasizes the importance of integrating climate and disaster resilience into power sector recovery and reconstruction. It provides a framework for leveraging renewable energy, modern technologies, and policy reforms to build more sustainable and resilient power systems. The guide also highlights the need for collaboration, capacity building, and risk-informed planning to ensure that recovery efforts are effective, inclusive, and aligned with long-term development goals.