Core Viewpoint - The release of the "Basic Rules for the Electricity Auxiliary Service Market" marks a significant advancement in China's electricity auxiliary service market, transitioning from a planned compensation model to a market-driven approach, which is essential for supporting the new power system and energy transition [1][10][24]. Group 1: Importance of the Rules - The rules effectively ensure the safety and stability of the electricity system, promoting the development of the electricity auxiliary service market [3][4]. - They implement the requirements for a unified national electricity market system, providing guiding principles and frameworks for local auxiliary service market construction [3][4]. - The rules align with the development trends of the new power system, supporting the large-scale growth of renewable energy and ensuring its stable integration [4][10]. Group 2: Highlights of the Rules - The rules establish a legal and policy foundation for market system construction, clearly defining the concept and scope of electricity auxiliary services [6]. - They broaden the range of market participants, including new entities like energy storage companies and virtual power plants, while standardizing the entry and exit processes for market participants [6][29]. - The rules provide detailed guidance for local implementation, ensuring uniformity and completeness in market regulations [6][30]. Group 3: Market Mechanisms and Structures - The rules clarify the pricing principles for auxiliary services, establishing a fair and efficient cost-sharing mechanism based on the principle of "who benefits, who bears the cost" [7][20]. - They enhance the integration of the auxiliary service market with the energy market, ensuring smooth connections in registration, trading sequences, and clearing processes [8][20]. - The rules specify the measurement and settlement of auxiliary service costs, ensuring transparency and fairness in market operations [8][31]. Group 4: Risk Management and Regulatory Framework - The rules outline a comprehensive risk prevention mechanism for the auxiliary service market, addressing various risks such as supply-demand imbalances and market power monopolies [20][30]. - They emphasize the importance of precise monitoring and regulatory oversight throughout the market operation process to ensure fairness and transparency [31].