Batteries & Energy

Sungrow

阳光电源 / 阳光电源股份有限公司

A Chinese power-electronics and energy-storage supplier developing 800V DC power architectures and solid-state transformers for AI data centers.

Sungrow is a major supplier of solar and battery-storage infrastructure, with energy storage now its largest business. Its AI relevance centers on emerging data-center power systems, but translating its utility-scale success into differentiated AI revenue faces strong competition and international trade risks.

Key figures

Revenue FY2025
RMB89.184 billion
Revenue growth FY2025
14.55%
Operating margin FY2025
18.27% Estimate
Net income FY2025
RMB13.461 billion
R&D spend FY2025
RMB4.175 billion (4.68% of revenue)
Capital expenditure FY2025
RMB3.008 billion
Market capitalization Sep 11, 2026
RMB173.91 billion Estimate
Global PV inverter market share FY2025
About 30%
Energy-storage shipments FY2025
43 GWh
Overseas share of revenue FY2025
60.54%
First-half 2026 revenue growth H1 2026
-28.99% year over year

Overview

Sungrow was founded in 1997 and operates as an independent, publicly listed Chinese power-electronics company. It supplies electricity-conversion and electricity-storage equipment, including photovoltaic inverters, battery energy-storage systems, and wind-power converters. The company has deployed 870 GW of power electronic converters worldwide as of June 2025, giving it a massive installed base across solar, storage, and power-conversion applications.

Its core advantage is the integration of high-power conversion, energy storage, grid-forming control, system engineering, and global project delivery. In utility-scale energy storage, it handles battery-management integration, thermal management, fire protection, and grid-code compliance across different electricity markets. Energy storage became its largest reported business line in 2025, surpassing its traditional photovoltaic inverter business, reflecting a broader industry shift toward integrated grid solutions.

The AI angle

AI demand reaches Sungrow indirectly through the massive electricity requirements of new compute campuses. Large data centers require reliable, high-capacity grid connections, backup power, and power-quality equipment. Furthermore, power demand from AI data centers raises the value of grid-forming battery systems, where Sungrow sells integrated storage systems and power-conversion equipment.

Its specific AI-facing offer is an emerging AI data-center power portfolio. Sungrow has created an AIDC Power Supply Business Unit to develop system-level products, including solid-state transformers, 800V DC power supplies, rack and onboard power, and prefabricated data-center deployment solutions. The company has begun supplying its EnerNeo solid-state-transformer products, which convert medium-voltage AC directly to 800V high-voltage DC for AI data centers. These products have reached small-batch domestic delivery, though large-scale commercialization remains early and the company does not disclose the share of revenue attributable to AI data centers. Sungrow captures value from the AI build-out by providing the critical power infrastructure that enables high-density computing.

Technology and moat

Sungrow's technology depth lies in power conversion, grid-forming storage systems, system integration, and global field deployment rather than in semiconductor process nodes or proprietary AI accelerators. It has accumulated extensive product, commissioning, and grid-compliance experience from its 870 GW of power-electronic converter installations and 43 GWh of 2025 storage shipments.

Its claimed technical differentiation for AI data centers is the proposed conversion of medium-voltage AC to 800V DC through solid-state transformers. A direct 800V DC system can reduce conversion stages relative to conventional data-center power architectures, improving overall energy efficiency. Competitors would need to reproduce high-voltage electrical design, safety certification, software controls, field-service networks, and utility-grid qualification to match its platform, creating a substantial barrier to entry in utility-scale power infrastructure.

Five-pillar assessment

Scale and market position
A major global supplier with 43 GWh of energy-storage shipments and an estimated 30% share of the global photovoltaic-inverter market in 2025.
Technology and R&D
Deep expertise in high-power conversion, grid-forming controls, and system integration, with emerging development of 800V DC architectures and solid-state transformers for data centers.
Supply-chain centrality
Serves major global infrastructure contractors and utilities, while relying on battery-cell suppliers like REPT BATTERO Energy and power-semiconductor vendors.
Financial momentum
Strong 2025 growth driven by energy storage, offset by a sharp revenue decline in the first half of 2026 amid domestic new-energy investment cyclicality.
Governance and quality
Founder-led, independent public company with transparent Shenzhen reporting, though exposed to international trade and cybersecurity scrutiny of Chinese infrastructure equipment.

Supply chain and relationships

Sungrow depends materially on battery cells, power semiconductors, transformers, electrical equipment, thermal-management hardware, and industrial controls. It buys rather than supplies these components, with REPT BATTERO Energy named as a top-five supplier in 2025. The top five suppliers account for 25.12% of annual purchases, and battery cells are strategically important for storage-system capacity and cost.

On the customer side, Sungrow serves large infrastructure and energy projects. Named customers include Algihaz Contracting Company, China Energy Engineering Group, CCT Leasing, Hubei United Investment Group, and Larsen & Toubro. For its emerging AI data-center business, it has reportedly signed strategic-cooperation agreements with Dongyangguang and Zhonglian Data to deploy its AIDC power systems.

Customers

  • Algihaz Contracting Company4.50% of FY2025 revenue
  • China Energy Engineering Group Co., Ltd.3.51% of FY2025 revenue
  • CCT Leasing Co., Ltd.3.40% of FY2025 revenue
  • Hubei United Investment Group Co., Ltd.2.89% of FY2025 revenue
  • Larsen & Toubro Limited2.66% of FY2025 revenue

Suppliers

  • REPT BATTERO Energy Co., Ltd.2.54% of FY2025 purchases

Partners

  • DongyangguangStrategic cooperation for AIDC power systems
  • Zhonglian DataStrategic cooperation for AIDC power systems

Competitors

  • TeslaInferredCompetes in utility-scale battery energy-storage systems
  • BYDInferredCompetes in energy storage and power-electronics systems
  • HuaweiInferredCompetes in solar inverters, digital power, and energy storage
  • CRRC Zhuzhou InstituteInferredCompetes in utility-scale energy storage
  • SMA Solar Technology AGInferredCompetes in global PV inverter markets

Geopolitics and risk

Sungrow's largest risk is its exposure to overseas trade barriers. Revenue outside mainland China reached 60.54% of total revenue in 2025. This makes the company highly exposed to tariffs, local-content rules, procurement restrictions, and changing treatment of Chinese energy equipment.

Storage systems combine batteries, controls, communications, and grid infrastructure, which can trigger cybersecurity and national-security reviews in the United States, Europe, and other markets. While Sungrow is diversifying its global footprint, it must navigate increasing scrutiny of China-origin supply chains in critical energy and data-center infrastructure. The company's ability to maintain its export momentum depends on managing these complex geopolitical dynamics and complying with evolving international trade regulations.

Risk matrix
Risk Severity Why it matters
Overseas trade barriers High High exposure to tariffs and procurement restrictions with over 60% of revenue from outside mainland China.
China-origin supply-chain scrutiny High Storage systems can trigger cybersecurity and national-security reviews in the US and Europe.
AI-data-center commercialization risk High AIDC power products are new, and customer adoption remains unproven at a material revenue scale.
Competitive substitution High Tesla, BYD, Huawei, and others compete for the same utility-scale storage projects.
Battery-cell and component concentration Medium Reliance on external battery-cell suppliers impacts capacity, cost, and delivery schedules.
Commodity and battery-price deflation Medium Falling component prices can pressure selling prices, inventory valuation, and project margins.
Utility-project execution and receivables Medium Large infrastructure projects involve long completion, financing, and collection cycles.
Domestic new-energy investment cyclicality Medium Project-development activities are sensitive to policy and cyclical demand.

Governance and ownership

Sungrow is an independent, publicly listed Chinese company, not a state-owned enterprise, chaebol, or keiretsu. It is founder-led, with Cao Renxian serving as legal representative, chairman, president, and chief executive.

It operates within China's regulated electricity and capital-market systems, and state-related entities appear as customers, though this commercial exposure does not establish state control. The company is subject to Shenzhen Stock Exchange disclosure requirements and filed a Hong Kong Stock Exchange IPO application in October 2025 for a secondary listing, indicating a push for broader international capital access and regulatory transparency.

What to watch

  • Whether FY2026 energy-storage revenue stabilizes after first-half revenue declines 13.18% year over year.
  • Whether AIDC power equipment moves from small-batch deliveries to disclosed revenue and repeat orders.
  • Whether the EnerNeo solid-state transformer achieves load-bearing operation in a production AI-computing environment.
  • Whether the Dongyangguang and Zhonglian Data framework agreements become named revenue contracts.
  • Whether overseas revenue remains above 60% of total revenue as trade restrictions evolve.
  • Whether declining domestic photovoltaic sales continue to be offset by energy storage and export demand.

Recent developments

  1. Reported first-half 2026 revenue of RMB30.912 billion, down 28.99% year over year.
  2. Presented battery energy storage as infrastructure for AI data centers, emphasizing grid-forming capabilities.
  3. Reported FY2025 revenue of RMB89.184 billion, with energy storage becoming its largest business line.
  4. Established an AIDC Power Supply Business Unit and set out a roadmap for solid-state transformers and 800V DC systems.
  5. Filed a Hong Kong Stock Exchange IPO application for a secondary listing.
  6. Reported first-half 2025 R&D spending of RMB2.037 billion, up 37%.

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About this profile

Compiled with AI-assisted research from company filings, market data, and published reporting as of September 12, 2026, then reviewed by AsiaAI.FYI. Figures marked Estimate are not company-reported. Check primary filings before relying on any number.

Confidence: B. Audited and company-filed FY2025 financial information is strong, but AI-data-center revenue contribution and detailed shareholder composition are not disclosed.

Main sources: Sungrow annual reports and annual-report summaries; Shenzhen and CNINFO filings; Sungrow investor-relations and product announcements; Energy-industry market research; Financial-market data.

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