Core Viewpoint - The article discusses the opening of the inertia service market to battery energy storage systems (BESS) in Germany starting from 2026, which will provide an additional revenue stream for these systems through fixed-price contracts for inertia services [2][3]. Inertia Service Market - From 2026, German transmission system operators (TSOs) will pay BESS for providing inertia services, crucial for maintaining frequency stability in the power grid [2]. - The compensation will be based on fixed price contracts lasting between 2 to 10 years, with initial pricing set by TSOs and valid for two years [2][3]. - The first procurement window's pricing details will be announced by January 28, 2026 [2]. Technical Requirements and Costs - Inertia service providers must meet specific technical requirements, including valid certification throughout the contract duration, although detailed standards and procedures are yet to be disclosed [4]. - BESS must be equipped with grid-forming inverters to provide inertia services, potentially increasing capital expenditures for these systems [3]. Grid Fee Reform - The Federal Network Agency of Germany has initiated a review process for structural reform of the current grid fee mechanism, which currently only charges end-users [5]. - Proposed reforms may include expanding the fee structure to include power generation sources, with options for fixed fees, capacity-based charges, and dynamic pricing [5][6]. - Storage facilities currently enjoy a fee exemption until 2029, and the agency aims to create a long-term framework that integrates storage technology into the grid [5]. Future Storage Goals - The Federal Ministry for Economic Affairs and Climate Protection emphasizes that climate protection goals can only be achieved with a high installed capacity of storage systems [7]. - Current grid development plans project that by 2037, small battery storage capacity will reach approximately 67 GW, and large battery capacity will reach about 24 GW, with further increases expected by 2045 [7]. Energy Storage Projects - A list of planned large-scale storage projects in Germany includes various collaborations and timelines, indicating significant investment and development in the sector [9]. Subsidy Policies - Various subsidy policies are in place to support energy storage systems, including low-interest loans, investment grants, and tax incentives, aimed at promoting the adoption of BESS [10].

华安证券研究所 证券研究报告 证券研究报告 证券研究报告 国内大储弱预期有望好转，欧洲大储景气度较高 华安电新 张志邦 SAC职业证书号：S0010523120004 邮箱： zhangzhibang@hazq.com 2025年6月19日 敬请参阅末页重要声明及评级说明 敬请参阅末页重要声明及评级说明 证券研究报告 证券研究报告 要点总结 ➢需求侧 • 高ROE市场 ➢供给侧 敬请参阅末页重要声明及评级说明 敬请参阅末页重要声明及评级说明 华安证券研究所 • 低ROE市场 • 国内：1）量：25年5月国内装机6.32GW/15.85GWh ；2）先导指标：招标：25年5月国内储能招标规模为6.57GW/20.2GWh ，容量同/环比+84%/-33% . • 印度：1）量：5月底，储能系统装机0.5GWh；2）先导指标：招标：独储25年招标21.52GWh，光储项目招标6.41GWh；3）政策：光伏开启强制配储；4）展望：预计到 2025年Q2有0.5GWh容量并网，印度全年装机超2GWh；5） 2025-26财年印度要求并网4GW/17GWh的电化学储能项目，且不能有任何拖延。 • 量：德国：5月储能装机 ...