Equity Research: Sungrow Power Supply (300274.SZ)

Date: October 29, 2025
Analyst: Shen Jiajie
Rating: BUY
Target Price: RMB 220.00
Current Price: RMB 165.88 (as of Oct 28, 2025)
Upside Potential: ~32.6%

Executive Summary

Sungrow Power Supply Co., Ltd. ("Sungrow" or the "Company"), a global leader in solar inverters and energy storage systems (ESS), has demonstrated robust operational momentum in the first three quarters of 2025. The Company reported revenue of RMB 66.4 billion (+33% YoY) and net profit attributable to shareholders of RMB 11.88 billion (+56% YoY), significantly exceeding market expectations. This outperformance is primarily driven by the explosive growth in the global energy storage market, where Sungrow holds the number one market share, alongside optimized product structures that have enhanced gross margins.

We maintain our BUY rating with a target price of RMB 220. Our investment thesis is underpinned by three core pillars:
1. Dominance in High-Growth Storage Sector: Sungrow is uniquely positioned to capitalize on the structural shift towards renewable integration, with ESS revenue surging 105% YoY in 1-3Q 2025.
2. Margin Expansion & Operational Efficiency: A strategic shift towards high-margin overseas markets and premium products has lifted overall gross margins to 34.9%, while financial efficiencies from exchange rate benefits have further bolstered bottom-line performance.
3. Emerging Growth Vector (AI Data Center Power): The Company’s strategic entry into the AI Data Center (AIDC) power supply segment, with pilot deliveries expected in 2026, offers a compelling new long-term growth driver amidst the global AI infrastructure boom.

At current levels, the stock trades at approximately 22x 2025E P/E and 17x 2026E P/E. Given the projected earnings compound annual growth rate (CAGR) of over 20% through 2027 and the Company’s defensive moat in brand reliability and global service networks, we believe the valuation remains attractive relative to its growth trajectory.

Key Takeaways

1. Financial Performance: Strong Beat Driven by Storage Surge

Sungrow’s 3Q 2025 results reflect a decisive acceleration in profitability, outpacing top-line growth due to favorable mix shifts and cost controls.

• Revenue & Profit Growth:

  • 1-3Q 2025: Total revenue reached RMB 66.4 billion, a year-over-year (YoY) increase of 33%. Net profit attributable to parent company shareholders stood at RMB 11.88 billion, up 56% YoY. Non-GAAP net profit was RMB 11.49 billion (+55.6% YoY).
  • Q3 2025 Standalone: In the third quarter alone, revenue was RMB 22.87 billion (+20.8% YoY), while net profit surged to RMB 4.15 billion (+57% YoY). Non-GAAP net profit for Q3 was RMB 3.99 billion (+59.8% YoY).
  • EPS: Diluted EPS for 1-3Q was RMB 5.73. Q3 EPS was RMB 2.00.

• Segmental Breakdown & Drivers:
  The divergence between revenue growth and profit growth is largely explained by the rapid expansion of the higher-margin Energy Storage System (ESS) business.

  Segment	1-3Q 2025 Revenue (RMB bn)	YoY Growth	Key Metrics
  Energy Storage Systems	28.8	+105%	Shipments: 29 GWh (+70% YoY)
  PV Inverters	23.4	+12%	Maintained global #1 market share
  Station Investment/Dev	~14.2*	N/A	Residual portion of total revenue

  *Note: Station investment revenue derived as residual from total revenue minus ESS and Inverter segments.

  The ESS segment has become the primary engine of growth. With shipments reaching 29 GWh in the first nine months, Sungrow is successfully converting its technological leadership into commercial scale. The PV inverter business, while growing at a more moderate pace of 12%, continues to provide a stable cash flow base and reinforces the Company’s cross-selling capabilities in hybrid solutions.

• Profitability Analysis:

  • Gross Margin: The consolidated gross margin improved by 3.56 percentage points YoY to 34.9% in 1-3Q 2025. This expansion is attributed to:
    1. Product Mix Optimization: Higher proportion of high-margin export sales, particularly in Europe and North America.
    2. Storage Premium: The ESS business, especially large-scale utility projects and advanced residential units, commands better pricing power than commoditized hardware.
  • Expense Control:
    • Financial Expenses: The financial expense ratio decreased by 0.82 percentage points YoY, primarily due to foreign exchange gains resulting from the strengthening of the USD against the RMB during the period.
    • Selling Expenses: The selling expense ratio declined by 0.24 percentage points, indicating improved operational leverage as revenue scales.
    • Administrative Expenses: Increased slightly by 0.29 percentage points, likely reflecting ongoing investments in R&D and global management infrastructure.
  • Asset Impairment: The Company recorded asset impairment losses of RMB 960 million in 1-3Q 2025. This includes approximately RMB 300 million in inventory write-downs and RMB 400 million in impairments related to power station development projects. While this impacts net income, it reflects prudent accounting practices and clearing of legacy low-margin assets.

2. Industry Dynamics: The Storage Supercycle

The global energy storage market is transitioning from a policy-driven niche to an economically critical component of the modern grid. Sungrow is poised to be the primary beneficiary of this structural shift.

• Market Growth Trajectory:

  • Global Demand: In 1-3Q 2025, overseas energy storage installations reached 94 GWh, a remarkable 74% YoY increase. Domestic (China) new installations totaled 82 GWh, up 61% YoY.
  • Future Outlook: We project the global storage market to maintain a high growth rate of approximately 50% in 2026. This growth is broad-based, with significant acceleration expected in Europe, the Americas, the Middle East & Africa (MEA), and the Asia-Pacific region.

• Key Demand Drivers:

  1. Economic Tipping Point: The levelized cost of storage (LCOS) has reached parity with peak-shaving alternatives in many major markets, making standalone storage projects economically viable without heavy subsidies.
  2. Grid Stability Needs: As renewable energy penetration exceeds 30-40% in many grids, volatility increases. Storage is no longer optional but essential for frequency regulation and voltage support.
  3. AI-Driven Power Demand: The proliferation of AI data centers creates a dual demand shock: increased total electricity consumption and a need for highly reliable, uninterruptible power supplies. This synergizes directly with Sungrow’s core competencies.

• Competitive Moat:
  Sungrow has established a formidable barrier to entry through:

  • Brand & Reliability: In the storage sector, bankability and safety records are paramount. Sungrow’s long-standing reputation for product stability has secured preferential status with major international utilities and independent power producers (IPPs).
  • Global Service Network: Unlike many competitors who rely on third-party integrators, Sungrow has built a direct service footprint in key markets (US, Europe, Australia). This ensures faster response times and higher customer stickiness.
  • Technological Iteration: The recent launch of the PowerTitan 3.0 intelligent storage platform in Q3 2025 highlights the Company’s commitment to R&D. This new platform features enhanced liquid cooling efficiency, higher energy density, and integrated AI-driven energy management systems, further widening the technological gap with second-tier competitors.

3. New Growth Horizon: AI Data Center (AIDC) Power Solutions

Beyond traditional renewables, Sungrow is strategically expanding into the power infrastructure for Artificial Intelligence Data Centers (AIDC).

• Strategic Rationale: AI training and inference workloads require massive, stable, and efficient power delivery systems. Traditional UPS (Uninterruptible Power Supply) and power distribution units are being re-engineered to handle higher densities and dynamic loads.
• Progress & Timeline: Sungrow is currently developing specialized AIDC power products leveraging its expertise in high-power electronics and thermal management. Small-scale deliveries are expected to commence in 2026.
• Impact: While this segment will not contribute materially to earnings in 2025, it represents a high-value, high-growth avenue for 2027 and beyond. As global AI capital expenditure continues to rise, Sungrow’s ability to provide integrated "Green Power + Stable Backup" solutions could open a multi-billion RMB additional TAM (Total Addressable Market).

4. Valuation and Earnings Forecast

We have updated our financial model to reflect the stronger-than-expected 3Q results and the accelerated growth profile of the storage segment.

Earnings Forecast (2025-2027):

Source: Company Reports, Capital Securities Estimates

Valuation Analysis:
* Current Valuation: At the closing price of RMB 165.88, Sungrow trades at 22.0x 2025E P/E and 17.4x 2026E P/E.
* Peer Comparison: Compared to global peers in the power electronics and renewable infrastructure space, Sungrow commands a premium due to its superior growth rate (41% expected in 2025) and market leadership. However, this premium is justified given the visibility of earnings and the dominance in the high-growth storage sector.
* Target Price Derivation: We apply a target P/E multiple of 29x to our 2025E EPS of RMB 7.53. This multiple reflects a blend of its historical average valuation during high-growth phases and a slight discount for broader market volatility risks.
* Calculation: $7.53 \times 29 = \text{RMB } 218.37$. Rounded to RMB 220.
* This implies an upside potential of approximately 32.6% from current levels, excluding dividend yield.

Risks / Headwinds

While the outlook is positive, investors should monitor the following risks which could impact our thesis:

1. Geopolitical and Trade Policy Risks:

   • Tariffs & Barriers: The US and EU continue to scrutinize Chinese renewable energy supply chains. Any escalation in tariffs (e.g., Section 301 tariffs in the US, or anti-subsidy investigations in the EU) specifically targeting energy storage systems or inverters could erode margins or reduce market access in these high-profit regions.
   • Local Content Requirements: Increasing mandates for local manufacturing in key markets (India, US, Middle East) may require higher capital expenditure from Sungrow to build local factories, potentially impacting ROIC in the short term.

2. Intensifying Competition:

   • The energy storage sector is attracting significant new entrants, including battery manufacturers (e.g., CATL, BYD) integrating downstream and traditional electrical giants. This could lead to price wars, particularly in the domestic Chinese market and price-sensitive emerging markets, compressing gross margins below our 34.9% assumption.

3. Raw Material Price Volatility:

   • Although lithium carbonate prices have stabilized, any sudden spike in battery cell costs or semiconductor shortages could increase COGS. Sungrow’s ability to pass these costs onto customers depends on the strength of demand and contract structures.

4. Foreign Exchange Fluctuations:

   • A significant portion of Sungrow’s revenue is denominated in foreign currencies (USD, EUR). While FX gains boosted profits in 1-3Q 2025, a reversal (strengthening RMB) could create headwinds for reported earnings and affect the competitiveness of exports.

5. Execution Risk in New Ventures (AIDC):

   • The AIDC power supply business is in early stages. Failure to meet the stringent reliability standards of hyperscale data center clients or delays in product certification could delay the anticipated revenue contribution from this segment beyond 2026.

6. Asset Impairment Continuity:

   • The Company recorded RMB 960 million in impairments in 1-3Q 2025. If the pipeline of power station development projects faces further regulatory hurdles or pricing pressure, additional impairments could drag on future net profits.

Rating / Sector Outlook

Sector Outlook: Positive
The global electrical equipment and renewable energy sector is entering a phase of sustained growth, driven by the dual engines of decarbonization and digitalization (AI).
* Storage as the Core Alpha: Within the sector, energy storage is the highest-growth sub-segment. We expect the global ESS market to grow at a CAGR of >40% over the next three years.
* Consolidation Trend: The industry is witnessing consolidation where leaders with strong balance sheets, global service networks, and brand recognition (like Sungrow) are gaining market share at the expense of smaller, less capitalized players.

Rating: BUY
We reiterate our BUY rating on Sungrow Power Supply. The Company’s 3Q 2025 results confirm its ability to execute in a complex global environment. The combination of dominant market share in storage, improving margins, and the optionality of the AI power business provides a compelling risk-reward profile. The current valuation of ~22x 2025E P/E offers a reasonable entry point for institutional investors seeking exposure to the global energy transition theme.

Investment View

Strategic Positioning: From "Inverter Leader" to "Energy Storage Giant"

Sungrow is undergoing a fundamental transformation in how the market perceives its value drivers. Historically viewed primarily as a solar inverter manufacturer, the Company is now decisively a global energy storage powerhouse. With storage revenue accounting for 41% of the product mix and growing at >100% YoY, the valuation multiple should arguably decouple from the slower-growth solar PV hardware sector and align more closely with high-growth energy infrastructure tech companies.

The "Quality" Premium in Storage

In the energy storage market, bankability is the ultimate currency. Utilities and IPPs cannot afford system failures. Sungrow’s decade-long track record, coupled with its #1 global shipment volume, creates a virtuous cycle:
1. Scale: Lower unit costs through procurement leverage.
2. Data: Extensive field data improves algorithm efficiency and predictive maintenance capabilities.
3. Trust: Proven reliability leads to repeat orders and lower cost of capital for project financing.

This moat is difficult for new entrants to replicate quickly, protecting Sungrow’s margins even as competition intensifies.

Financial Health and Cash Flow Generation

Sungrow’s balance sheet remains robust, supporting its aggressive growth strategy.
* Cash Position: Monetary funds stood at RMB 22.96 billion in 2025E estimates, providing ample liquidity for R&D and potential M&A.
* Operating Cash Flow: Estimated operating cash flow for 2025 is RMB 16.9 billion, indicating strong cash conversion capabilities despite rapid expansion.
* Debt Management: The Company maintains a manageable debt structure, with long-term liabilities decreasing as a proportion of total capital, reducing financial risk in a potentially higher-for-longer interest rate environment.

Catalysts for Re-rating

1. Continued Margin Expansion: If gross margins sustain above 35% in Q4 2025 and into 2026, it will validate the structural improvement in profitability, justifying a higher P/E multiple.
2. AIDC Product Launch: Successful pilot deployments and initial contracts for AI data center power solutions in 2026 will serve as a significant sentiment catalyst, opening up a new narrative for growth.
3. Policy Support: Further clarity on US IRA (Inflation Reduction Act) implementation or EU Green Deal industrial plans that favor established, compliant suppliers could benefit Sungrow’s overseas order book.

Conclusion

Sungrow Power Supply stands at the intersection of two megatrends: the global transition to renewable energy and the electrification of AI infrastructure. Its 1-3Q 2025 performance demonstrates not just growth, but high-quality growth characterized by margin expansion and market share gains in the most dynamic segment of the industry.

For institutional investors, Sungrow offers a rare combination of scale, profitability, and future optionality. While geopolitical risks persist, the Company’s diversified global footprint and technological leadership mitigate single-market dependencies. We recommend accumulating shares on any weakness, with a 12-month target price of RMB 220, representing a compelling upside from current levels.

Appendix: Detailed Financial Tables

Exhibit 1: Consolidated Income Statement (RMB Million)

Exhibit 2: Consolidated Balance Sheet Highlights (RMB Million)

Exhibit 3: Cash Flow Statement Highlights (RMB Million)

Disclaimer: This report is for institutional investors only. The information contained herein is based on sources believed to be reliable, but no representation or warranty, express or implied, is made regarding its accuracy or completeness. The opinions expressed are subject to change without notice. Past performance is not indicative of future results.