Group 1 - The "2024 Electric Power Construction Project Cost Index (ECCI)" indicates a steady decline in the unit cost of onshore wind power projects over the next three years, while offshore wind power project costs are expected to decrease further and gradually return to reasonable levels [1][2] - China maintains its leading position in renewable energy, with wind power installed capacity ranking first globally for 15 consecutive years and solar power for 10 years. In 2024, the combined installed capacity of wind and solar in China accounts for 47% of the global total, with new installations representing 63% of the global market [1] - The past five years have seen a general increase in the unit costs of thermal power, hydropower, and grid projects due to rising construction site-related investments. In contrast, the unit costs of wind and solar power projects have decreased due to industry development, technological advancements, and a significant drop in equipment material prices [1] Group 2 - Future predictions for the electric power engineering cost index suggest that the unit cost of thermal power projects will remain stable with slight increases, while hydropower costs are expected to rise. Onshore wind power costs will continue to decline, and offshore wind power costs will return to reasonable levels. In contrast, deep-sea wind power costs are projected to increase, and solar power costs will initially decrease before stabilizing [2] - The Ministry of Housing and Urban-Rural Development emphasizes the importance of cost management in engineering as a key area for national economic and social development, advocating for market-oriented reforms, digital thinking, and standardized advancement [2]