光伏产业链：“反内卷”+太空光伏双线驱动，2026年价值回升可期

Core Viewpoint - The photovoltaic industry is currently focused on "anti-involution," with expectations that the supply-demand gap will gradually narrow by 2026, leading to a potential price recovery across the industry chain [1] Supply and Demand Analysis - The photovoltaic industry has experienced significant price declines since 2023, resulting in widespread losses across the main industry chain and increased financial strain on companies due to extended payment terms and rising bad debts [1] - A temporary surge in photovoltaic installations is anticipated in early 2025 due to policy influences, but a significant drop in domestic grid-connected projects is expected after June 2025, leading to a market vacuum [1] - The establishment of a storage platform by leading companies indicates efforts to address the price inversion in the silicon material sector, with stricter energy consumption standards likely to phase out excess capacity [2] - The supply of polysilicon is expected to decrease significantly in 2025 compared to peak levels in 2023 and 2024, supporting price stabilization [3] Segment Analysis - Polysilicon Segment: Production is expected to decline after reaching a peak in October, with a strong consensus on maintaining stable prices due to proactive supply-side reductions [3] - Wafer Segment: New capacity additions are expected to slow significantly starting in 2025, with demand growth also tapering off, leading to improved price conditions through inventory reduction [3] - Battery Segment: Supply-side capacity is not expected to increase significantly, focusing instead on efficiency and cost optimizations, with potential growth in the market for BC batteries driven by decreasing costs [3] - Module Segment: The module industry has entered a phase of low profitability, but cost optimization efforts by leading companies may lead to a recovery in gross margins as supply-side adjustments take effect [4] Emerging Technology Focus - The industry is increasingly interested in space photovoltaics, which convert solar energy into electricity in space environments, providing a reliable power source for spacecraft [4][5] - Space photovoltaics offer significant advantages, including stable energy supply unaffected by atmospheric conditions and low maintenance requirements, making them ideal for long-term missions [5] - The global competition in commercial space and the demand for low Earth orbit satellites are expected to drive growth in space photovoltaic applications [6] - Major companies like SpaceX and Google are actively developing space-based data centers, which could further enhance the demand for space photovoltaics [7] Technical Developments - Current battery technologies for space photovoltaics include gallium arsenide, crystalline silicon, and perovskite batteries, each with distinct advantages and limitations [7][8] - Gallium arsenide batteries are favored for their high efficiency and durability, while crystalline silicon batteries are gaining attention for their lower production costs and suitability for low Earth orbit applications [8]