Group 1 - The core viewpoint is that the National Certificate New Energy Battery Index (980027) has shown strong performance, with a 2.59% increase, and notable gains in constituent stocks such as Guo'an Da (300902) up 9.96% and Yangguang Electric (300274) up 6.83% [1] - The Storage Battery 50 ETF (159305) has also risen by 2.55%, with a cumulative increase of nearly 15% over the past 21 trading days [1] - The liquidity of the Storage Battery 50 ETF is active, with a turnover rate of 10.51% and a transaction volume of 4.75 million yuan, while the average daily transaction volume over the past year is 8.89 million yuan [1] Group 2 - As of April 30, 2025, the top ten weighted stocks in the National Certificate New Energy Battery Index account for 53.32% of the index, with Ningde Times (300750) being the largest component [2] - Ningde Times launched the TENER Stack at the Munich Battery Storage Exhibition, marking a breakthrough in large-capacity storage systems with a production capacity of 9MWh [2] - In Q1 2025, China's newly installed photovoltaic capacity reached 59.71GW, a year-on-year increase of 30.5%, indicating strong growth in the renewable energy sector [2]