光伏ETF（515790）基金经理为李茜、李沐阳。 9月4日，双良节能涨5.69%，截至发稿，报6.13元/股，成交5.32亿元，换手率4.71%，总市值114.86亿 元。 资料显示，双良节能系统股份有限公司位于江苏省江阴市利港镇西利路88号，成立日期1995年10月5 日，上市日期2003年4月22日，公司主营业务涉及公司目前主要业务分为1、节能节水系统,包括:溴化锂 冷热机组、换热器、空冷系统等;2、光伏新能源系统,包括多晶硅还原炉及其模块,以及大尺寸单晶硅 棒、硅片。主营业务收入构成为：光伏产品67.97%，节能节水装备23.03%，新能源装备7.26%，其他 (补充)1.74%。 从双良节能十大流通股东角度 数据显示，华泰柏瑞基金旗下1只基金位居双良节能十大流通股东。光伏ETF（515790）二季度减持 3.61万股，持有股数1310.51万股，占流通股的比例为0.7%。根据测算，今日浮盈赚取约432.47万元。 光伏ETF（515790）成立日期2020年12月7日，最新规模99.84亿。今年以来收益10.99%，同类排名 3433/4222；近一年收益27.52%，同类排名3151/3789；成 ...

Core Viewpoint - The credit rating of Shuangliang Energy Saving System Co., Ltd. has been downgraded to AA- due to significant declines in profitability and increased debt burden, with a stable outlook for the future [1][4]. Company Overview - Shuangliang Energy Saving System Co., Ltd. focuses on energy-saving and water-saving equipment, new energy equipment, and photovoltaic products [8]. - The company was established in 1995 and is listed on the Shanghai Stock Exchange [8]. Financial Performance - In 2024, the company reported total revenue of 130.38 billion yuan and a net loss of 25.45 billion yuan [8]. - As of March 2025, the company had total assets of 275.10 billion yuan and total liabilities of 166.53 billion yuan, with a debt-to-asset ratio of 82.77% [8][10]. - The company's profit margin has significantly declined, with a total profit loss of 1.91 billion yuan in the first quarter of 2025 [8][10]. Industry Analysis - The energy-saving and water-saving industry is experiencing increased demand due to national policies aimed at reducing energy consumption and carbon emissions [9]. - The photovoltaic manufacturing sector is facing challenges such as overcapacity and declining prices, which have negatively impacted the company's revenue and profitability [9][10]. Competitive Position - The company maintains a strong market position in the energy-saving and new energy equipment sectors, with a significant market share in lithium bromide chillers and multi-crystalline silicon reduction furnaces [4][6]. - The company has a dual business model of "equipment manufacturing + clean energy," which helps mitigate risks associated with reliance on a single business line [6][10]. Risks and Challenges - The company faces risks related to increased competition in the photovoltaic sector, leading to reduced profitability and cash flow [4][5]. - There is a significant risk of inventory depreciation due to the oversupply in the photovoltaic manufacturing industry [4][10]. Future Outlook - The company is expected to continue facing challenges in the short term due to industry overcapacity and competitive pressures [4][9]. - However, improvements in cash flow and profitability are anticipated if the company can effectively manage its operations and capitalize on market opportunities [4][9].