Soochow Securities·2025-04-24 11:30Investment 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, significantly increasing the demand for computing power, 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 backup power sources for data centers, which are experiencing substantial capital expenditure growth due to rising computing power demands [3][5]. - Domestic brands are poised 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 Boosts Computing Power Demand - Deepseek demonstrates performance comparable to leading international AI models, enhancing the domestic AI application landscape and driving up computing power needs [6][14]. - Major tech companies like Tencent and Alibaba are significantly increasing their capital expenditures for computing infrastructure, with Tencent's capital expenditure reaching 768 billion yuan in 2024, a 221% year-on-year increase [14][15]. 2. Diesel Generator Sets as Core CAPEX for Data Centers - Diesel generator sets account for 23% of the supporting infrastructure costs in data centers, which are projected to grow from a market size of 4.57 billion yuan in 2023 to 13.16 billion yuan by 2028, reflecting a compound annual growth rate (CAGR) of 24% [3][31]. - The demand for high-capacity diesel generators is expected to rise significantly due to the increasing construction of AI-related data centers, which require robust power backup systems [24][26]. 3. Domestic Supply Chain Benefits from High Demand and Limited Foreign Expansion - The market for diesel engines in data centers is dominated by foreign brands, but domestic manufacturers are gaining market share due to supply chain challenges faced by foreign companies [3][47]. - Recent bidding results show that domestic brands like Weichai Heavy Machinery have significantly increased their market share, with Weichai's share rising to 40% in recent tenders [3][68]. 4. Investment Recommendations - The report recommends focusing on domestic OEM manufacturers such as Keta Power, Taihao Technology, and Sumida, as well as main engine manufacturers like Weichai Heavy Machinery and component manufacturers like Linde [3][5].