Generac global supply agreement strengthens Weichai's AIDC power re-rating thesis

Overview

This report focuses on the re-rating opportunity for Weichai Power in the AI data center power supply chain. The core catalyst is Generac signing a global backup power generator supply agreement with a leading hyperscale data center operator. Generac is an important U.S. partner of Weichai and uses Baudouin-branded large-bore diesel engines. Goldman Sachs believes this order event improves the certainty of Weichai's data center backup power business and could drive upside to 2027 earnings.

Core views

Goldman Sachs' core view is that Weichai Power's investment thesis has shifted from the traditional heavy-truck and internal combustion engine cycle to structural growth driven by its AIDC power portfolio. The company has built a more complete power product portfolio across large-bore diesel engines, gas generator sets, and SOFC/fuel cells, covering data center backup power and on-site prime power needs. The report believes the market has not yet fully reflected the potential value of gas generator sets and SOFC businesses within the AIDC power portfolio, and therefore maintains Buy ratings on both the A-shares and H-shares.

Analysis framework

The report uses an analytical approach combining event-driven catalysts with business re-rating: it first infers order visibility for Weichai in the U.S. data center backup power chain from Generac's global supply agreement, then breaks AIDC power generation into diesel backup power, RICE gas prime power, and SOFC prime power, applies valuation multiples corresponding to different growth stages, and aggregates company value through an SoTP framework.

Methodology notes

• Valuation methodSOTP

  Sum-of-the-parts valuation

  Goldman Sachs uses the SoTP method because Weichai's different power-generation products are at different growth stages, and a single valuation multiple would not adequately reflect the differences between the traditional business and the AIDC power business.

• Traditional business valuationMid-cycle P/E

  12x average 2026E-2027E EPS for the traditional business

  The traditional business is valued using a mid-cycle P/E, and includes the market value attributable to Weichai from KION.

• AIDC business valuationProduct-level P/E discounting

  25x 2028E P/E for large-bore diesel engines, 30x 2030E P/E for RICE, 51x 2030E P/E for SOFC

  Different P/E multiples are applied to diesel backup power, gas prime power, and SOFC prime power respectively, and discounted back to mid-2027E at a 9% cost of equity.

• Research toolGS Factor Profile

  Profile of growth, financial returns, valuation multiples, and composite factors

  This tool is used to compare individual stocks with the market and industry peers in terms of growth, financial returns, and valuation multiples.

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• Weichai Power A-share 000338.SZ

  Core covered name

  Strengths

  It has a leading share in China's multi-cylinder engine market and is tapping AIDC power demand through large-bore diesel engines, gas generator sets, and SOFC.

  Weaknesses

  Traditional heavy-truck, infrastructure, and property-related demand can still affect the earnings cycle.

  Comparison

  The A-share target price is Rmb48.00/share, implying substantial upside versus the disclosed price of Rmb32.22.

  Risks

  Weaker-than-expected macro activity, weaker-than-expected heavy-truck engine market share, and slower-than-expected development of the power business.

• Weichai Power H-share 02338.HK

  H-share valuation anchor for the same company

  Strengths

  The H-shares are the report's primary valuation anchor, with a target price of HK$56.0/share.

  Weaknesses

  They may be affected by Hong Kong market risk appetite and A/H valuation differences.

  Comparison

  The A-share target price references the H-share equity value and assumes a 6% discount.

  Risks

  If the assumed A/H discount or the Hong Kong liquidity environment changes, the target price mapping could be affected.

• Generac Holdings Inc. GNRC

  Not covered, but an important partner in Weichai's U.S. backup power chain

  Strengths

  It signed a global supply agreement with a leading hyperscale data center operator, strengthening visibility for backup power demand.

  Weaknesses

  The announcement did not disclose further quantitative details.

  Comparison

  Generac's data center backlog stood at US$700mn at the end of 1Q26, and potential procurement in 2027 could exceed US$600mn.

  Risks

  If the procurement pace or scale under the supply agreement is below expectations, the look-through contribution to Weichai may fall short of expectations.

• KION KGX.DE

  Weichai's intelligent logistics subsidiary with a 46.5% stake

  Strengths

  The report states it is the world's second-largest industrial forklift manufacturer and the world's largest supply chain solutions provider.

  Weaknesses

  Its linkage to the AIDC power theme of this report is relatively weak.

  Comparison

  The market value attributable to Weichai from KION is included in the valuation of the traditional business.

  Risks

  Fluctuations in intelligent logistics demand could affect the value of Weichai's diversified business portfolio.

Key data

• Generac share price reaction after the announcementabout +6%Generac shares rose overnight after announcing the global supply agreement with a leading hyperscale data center operator.
• Potential procurement scale in 2027more than US$600mnBased on prior management comments at an investor day, the report believes potential procurement in 2027 could exceed this level.
• Generac data center backlogUS$700mnAs of the end of 1Q26.
• Weichai's China multi-cylinder engine market shareabout 20%The report states that Weichai is the largest internal combustion engine manufacturer in China.
• AIDC power business share of 2025E net profit12%Goldman Sachs believes this business is already an important source of profit contribution.
• AIDC power business growth by 2030Eabout 10xThe report expects this business to grow significantly by 2030E versus the current level.
• AIDC power business earnings contribution in 2030E43%The report expects the earnings contribution from AIDC power generation to more than triple.
• Incremental EPS contribution by 2030E60%+Goldman Sachs expects the AIDC power business to drive the majority of Weichai's incremental EPS growth through 2030E.
• H-share target priceHK$56.0/share12-month target price, serving as the primary valuation anchor.
• A-share target priceRmb48.00/shareBased on the assumption of a 6% discount to the implied equity value of the H-shares.
• Cost of equity assumption9%Used to discount product-level valuations of the AIDC power business back to mid-2027E.

Impact & implications

If the Generac supply agreement converts into data center generator demand as expected, Weichai's visibility in the U.S. backup power chain will improve and may prompt the market to reassess it as more than just a heavy-truck cyclical stock, but rather as an industrial company with growth exposure to AI data center power infrastructure. For investors, the implication is that the recent pullback in the AIDC power segment may offer a better entry point, but valuation realization will still depend on order execution, the pace of expansion in the power business, and the cyclical resilience of the traditional business.

Risks

• Macro activity weaker than expected, especially demand related to road freight, infrastructure, and real estate.
• Global economic growth weaker than expected.
• Powertrain penetration shifts toward higher electrification, while LNG penetration is lower than expected.
• Heavy-truck engine market share performance weaker than expected.
• Power business development slower than expected.

What to watch

• Whether follow-up disclosures on the Generac global supply agreement provide order size, delivery pace, and customer procurement plans.
• Shipment and share changes of Weichai's Baudouin large-bore diesel engines in U.S. data center backup power.
• Commercialization progress of gas generator sets and SOFC in on-site prime power scenarios for data centers.
• Whether the AIDC power business share of net profit rises from 12% in 2025E to 43% in 2030E as projected in the report.
• Whether the A/H valuation discount implied by the A-share and H-share target prices remains stable near the report's assumption.
• Whether traditional heavy-truck, infrastructure, and property-chain demand drags on or supports Weichai's base earnings.