To meet rising electricity demand and emissions reduction goals, Korea will need to address multiple challenges related to system reliability, energy storage capacity, grid connectivity, power market structure, and local acceptance.

As fossil fuel generation decreases and renewable energy increases, maintaining system stability will require new reliability standards, including measures for system inertia, voltage control, and monitoring systems.

Transmission congestion and delays in grid interconnection remain major barriers, driven by limited infrastructure, planning bottlenecks, and local opposition, highlighting the need for proactive planning and expansion of transmission networks.

High renewable energy costs, insufficient incentives, and current market structures further constrain deployment, while underdeveloped energy storage systems and regulatory gaps limit system flexibility.

The report emphasizes that coordinated policy actions—including grid expansion, market reform, energy storage support, and early stakeholder engagement—are essential to overcoming these barriers and accelerating clean energy deployment.

< Table of Contents >

Executive Summary

1.  Introduction

2.  System Reliability

     2.1 System Inertia

     2.2 Reactive Power and Voltage Service

3. Congestion Management and Grid Interconnection

     3.1 Congestion Management

     3.2 Grid Interconnection

4. Local Priorities

5. Technical and Economic Feasibility

6. Grid Energy Storage

7. Market Reform

8. Conclusions and Areas for Further Research

References