Core Insights - The construction of China's electricity market has made significant progress over the past decade, but challenges remain, particularly with the rapid expansion of renewable energy capacity, which has led to issues such as "abandoned solar power" during midday and supply pressure during peak hours [1] - The recent 2025 Electricity Market Autumn Forum highlighted the consensus on accelerating nationwide coverage of the spot market and promoting high-quality development of renewable energy as key solutions to current challenges [1] Group 1: Spot Market Development - China's electricity spot market has entered a critical phase, with seven provincial markets officially operational and others in trial phases, forming a basic framework for a unified market with two-level operations [2] - The inter-provincial spot market has been established, covering 26 provinces and over 6,000 power generation entities, which has helped alleviate supply pressure during peak electricity demand periods [2] Group 2: Renewable Energy Integration - The spot market has begun to show its guiding role in renewable energy consumption, with inter-provincial market transactions for renewable energy reaching 7.75 billion kilowatt-hours, accounting for 36.5% of total transactions from January to August 2025 [3] - In Zhejiang, the first provincial spot market in the Yangtze River Delta, market mechanisms have effectively guided users to shift their electricity consumption, increasing renewable energy consumption by 100 million kilowatt-hours since 2025 [3] Group 3: Challenges and Mechanism Reforms - The continuous increase in renewable energy's share has changed the operational characteristics of the electricity system, with renewable energy capacity exceeding 46% nationally in the first half of 2025 [4] - The occurrence of negative electricity prices has become a common issue in high renewable penetration areas, with frequencies reaching 11%-14% in regions like Shandong and Shanxi during winter and spring [5] - Experts suggest that optimizing mechanisms rather than administrative interventions is necessary to address the challenges posed by high renewable energy penetration [5] Group 4: Recommendations for Market Improvement - Expanding the price difference in the spot market is a key recommendation, with suggestions to raise the price cap significantly to better reflect the time value of electricity and encourage investment [6] - A multi-layered market system is proposed, including energy markets, capacity markets, and ancillary service markets, to ensure long-term supply capacity and incentivize flexible resources [6] - The integration of renewable energy into the market and the collaboration between inter-provincial and intra-provincial markets are seen as important directions for future development [6]
现货市场加速建设,专家呼吁扩大价差应对高比例新能源
Zhong Guo Neng Yuan Wang·2025-09-17 07:58