IRENA-2020分布式发电市场创新的方法（英文）-2020.7-134页_13mb

Summary of the Innovation Landscape Brief: Future Role of Distribution System Operators (DSOs)

Core Content

This document outlines the evolving role of Distribution System Operators (DSOs) in the context of increasing renewable energy integration. It highlights the shift from traditional, centralized power systems to more decentralized and flexible networks, driven by the proliferation of Distributed Energy Resources (DERs) such as solar PV, wind turbines, battery storage, and electric vehicles (EVs). DSOs are now expected to take on new responsibilities beyond their traditional role as network operators, including facilitating markets for flexibility services, managing network congestion, and providing reactive power support to Transmission System Operators (TSOs).

Main Points

1. Growing Responsibilities for DSOs

• Traditional Power System Structure: A centralized system where electricity flows unidirectionally from generation to consumers via TSOs and DSOs.
• Emergence of DERs: DERs are now active participants in the grid, enabling two-way power flow and increasing the complexity of grid management.
• New DSO Role: DSOs must adapt to manage the increased volume of DERs, including procuring flexibility services, optimizing grid usage, and deferring investments.

2. Key Innovations and Opportunities

• Market-based Procurement: DSOs can procure services like voltage support and congestion management from DER owners.
• Virtual Power Lines: DSOs can use DERs to avoid costly grid reinforcement by deferring investments and managing local demand.
• Advanced Forecasting: Improved forecasting of variable renewable generation enables better planning and operation of the grid.
• Pumped Hydropower Storage: Innovative operation of storage systems can help balance supply and demand.
• Dynamic Line Rating: Enables more efficient use of existing infrastructure by real-time monitoring of grid conditions.

3. New Opportunities for DSOs

• DSOs can act as neutral market facilitators, offering price signals to market participants.
• They can directly operate DERs, especially in cases where no other parties are interested or where storage is necessary for grid operations.
• They can reduce network investments by leveraging DERs for peak load management and congestion relief.

Key Enabling Factors

1. Regulatory Frameworks

• Clear roles and responsibilities for DSOs must be defined.
• Regulatory incentives should support innovation in grid operations and market facilitation.
• The regulatory model RIIO in the UK is an example that encourages innovation and customer-centric approaches.

2. Data Management

• DSOs need to collect, store, and share consumer data securely and transparently.
• Data standards and formats must be established to enable interoperability and value-added services.
• The EU's Clean Energy for All Europeans package promotes non-discriminatory access to smart meter data.

3. Smart Grid Technologies

• Smart meters and real-time monitoring are essential for data collection and grid optimization.
• Communication infrastructure is required to enable interaction between DSOs and DERs.
• Digital technologies such as sensors, AI, and robotics are transforming grid operations.

4. Consumer Engagement

• DSOs must improve communication with consumers to adapt to new behaviors and expectations.
• Digital platforms and apps are being used to provide consumers with real-time data and control over their energy use.

Current Status and Examples

1. Leading Countries

• United States and European Union are at the forefront of expanding DSO responsibilities.
• UK Power Networks has implemented a virtual power plant (VPP) project, aggregating solar panels and batteries to reduce peak demand by 60%.
• New York's Reforming the Energy Vision initiative includes measures like smart meter deployment, local marketplaces, and virtual power plant development.

2. Pilot Projects and Initiatives

• Open Networks Project in the UK is exploring new ways to integrate DERs into the grid.
• Smart Meter Deployment: The EU mandates 80% of meters to be upgraded to smart versions by 2020. The UK plans to deploy smart meters to 50 million households by 2020.
• Italy's e-Distribuzione is replacing smart meters with second-generation devices to improve remote management and energy efficiency.

Conclusion

The future role of DSOs is critical in enabling the transition to a renewable-powered energy system. With the integration of DERs, DSOs have the opportunity to reduce network investments, increase grid flexibility, and provide essential services such as voltage control and congestion management. This transformation is supported by regulatory changes, data management standards, and the deployment of smart grid technologies. Examples from the UK and New York demonstrate the potential of DSOs to become active system operators and market facilitators, driving innovation and efficiency in the power sector.