Core Viewpoint - Countries worldwide face similar challenges in transitioning to "net-zero power systems," including the volatility introduced by renewable energy, increased demand for flexibility and reliability in power systems, and the need for larger-scale coordination of clean energy [1] Group 1: Enhancing Grid Flexibility - Improving the capacity for renewable energy integration relies on enhancing grid flexibility, which involves compensating resources for their contributions at the right time and place [2] - Current domestic spot market price fluctuations are significantly tighter compared to most European and American markets, where price limits are less restrictive and can reflect supply shortages [2] Group 2: Expanding Power Balance Areas - Expanding power balance areas is an effective strategy to alleviate clean energy integration issues, allowing for a larger resource pool and better matching of clean energy and demand at lower costs [3] Group 3: Breaking Down Internal Barriers - The integration of electricity spot markets across different levels and regions is complex, but lessons can be learned from other markets, such as the EU's progress in establishing a unified electricity market and India's market reform initiatives [4] Group 4: Fair Competition - Policymakers are tasked with ensuring that new energy sources can compete fairly with traditional fossil fuels, emphasizing the need for transparent market rules that allow for equal competition [5] Group 5: Key Principles for Clean Energy Integration - Three important principles for addressing clean energy integration include ensuring appropriate compensation for resources, optimizing inter-resource cooperation across larger balance areas, and allowing traditional and new resources to compete under transparent rules [6][7]