Soochow Securities·2025-04-24 12:23Investment Rating - The report suggests a positive investment outlook for the diesel generator set industry, particularly for domestic OEM manufacturers and key players in the supply chain [2][5]. Core Insights - The domestic AI model Deepseek is accelerating the application of AI in China, leading to a significant increase in computing power demand, which in turn benefits the diesel generator set market as it is a core component of data center infrastructure [3][5]. - Diesel generator sets are essential for data centers, accounting for approximately 23% of supporting infrastructure costs and 6%-7% of total data center construction costs. The market for diesel generators in data centers is projected to grow from 4.57 billion yuan in 2023 to 13.16 billion yuan by 2028, with a compound annual growth rate (CAGR) of 24% [3][31]. - Domestic brands are expected to benefit from the challenges faced by foreign manufacturers in expanding production capacity, leading to opportunities for volume and price increases for local suppliers [3][5]. Summary by Sections 1. Deepseek Accelerates Domestic AI Application and Drives Computing Power Demand - Deepseek demonstrates performance comparable to leading international AI models, significantly enhancing domestic AI application scenarios and driving up computing power demand [3][6]. - Major tech companies like Tencent and Alibaba are increasing capital expenditures for computing power infrastructure, with Tencent's capital expenditure reaching 768 billion yuan in 2024, a 221% year-on-year increase [3][14]. 2. Diesel Generator Sets as Core CAPEX for Data Centers - Diesel generator sets are critical backup power sources for data centers, complementing UPS systems to ensure continuous operation during power outages [22][24]. - The construction of data centers requires diesel generator sets, which are mandated for A and B level data centers as per national standards [24][26]. - The market for diesel generator sets in data centers is expected to reach 13.16 billion yuan by 2028, driven by the rapid growth of intelligent computing power [31][32]. 3. Domestic Supply Chain Benefits from High Demand and Limited Foreign Expansion - The core components of diesel generator sets, particularly diesel engines, are dominated by foreign brands, which hold a 90% market share in 2024. However, domestic brands are gaining market share due to supply chain challenges faced by foreign manufacturers [3][47]. - Recent bidding results show that domestic manufacturers like Weichai Heavy Machinery have significantly increased their market share in high-pressure diesel generator sets [66][68]. 4. Investment Recommendations - The report recommends focusing on domestic OEM manufacturers such as KOTAI Power, Taihao Technology, and Sumida, as well as main engine manufacturers like Weichai Heavy Machinery and component manufacturers like Linde [3][5].