Weichai Heavy Machinery (SZ:000880) Shenwan Hongyuan Securities·2025-10-17 12:39Investment Rating - The report rates the diesel generator industry positively, highlighting significant opportunities for domestic replacements due to supply-demand mismatches and increasing demand driven by AI computing needs [4]. Core Insights - The demand for diesel generators is expected to surge as AI computing power requirements explode, with predictions indicating a growth in China's intelligent computing scale to 725.3 EFLOPS in 2024, a 74.1% year-on-year increase, and doubling to 1,460.3 EFLOPS by 2026 [4][12]. - Major tech companies are significantly increasing their capital expenditures on AI infrastructure, which will accelerate the construction of AI data centers (AIDC) [4][24]. - The mandatory policy requiring A-grade data centers to have "2N redundancy" diesel generators emphasizes the essential role of diesel generators as backup power sources [4][12]. - The mismatch between strong demand and weak supply is expected to lead to a rise in both volume and price of diesel generators, creating a favorable environment for domestic manufacturers [4][40]. Summary by Sections 1. Demand Surge for Diesel Generators - The construction of data centers is driving a high increase in demand for diesel generators, with the AIDC market projected to reach 1,014 billion yuan by 2024, growing at a CAGR of 26.8% [12][24]. - Diesel generators are crucial for ensuring uninterrupted power supply in data centers, which are increasingly reliant on stable electricity for AI training and inference [12][17]. 2. Acceleration of Domestic Replacement - The current supply-demand mismatch, exacerbated by international capacity expansion lagging behind demand, presents a window for domestic manufacturers to capture market share [4][40]. - Domestic manufacturers are expected to see significant profit increases as the market enters a price-up cycle due to supply shortages [4][44]. 3. Opportunities in the Supply Chain - Key component suppliers with high domestic production rates are likely to benefit from the surge in diesel generator demand, with technological breakthroughs and domestic replacements opening new growth avenues [4][50]. - Companies like Tianrun Industrial, which have established strong ties with major manufacturers, are positioned to gain from the increased demand for core components [4][80]. 4. Investment Recommendations - The report suggests focusing on domestic replacement beneficiaries such as Weichai Heavy Machinery and Yuchai International, as well as component suppliers like Tianrun Industrial [4][24][80]. - The expected profit surge for domestic manufacturers is anticipated to materialize in the second half of 2025 and throughout 2026, driven by increased market share and pricing power [4][44].