What Tongwei Solar does

Tongwei Solar, a wholly-owned subsidiary of Shanghai-listed Tongwei Co., Ltd. (SHA: 600438), is a vertically integrated photovoltaic manufacturer spanning high-purity polysilicon, N-type solar cells, PV modules, and downstream power station development. The company is the world's largest producer of high-purity polysilicon (900,000 tons annual capacity, No. 1 global share since 2021) and the No. 1 global solar cell shipper for nine consecutive years with 400GW+ cumulative shipments across 150GW+ of N-type cell capacity. Its module business operates approximately 90GW of capacity, shipping to 70+ countries, and ranks No. 5 on BloombergNEF's Tier 1 list with AA bankability.

The company's technology stack centers on its proprietary TNC (Tongwei N-type Cell) platform — TOPCon-based iterations from TNC 1.0 through TNC 3.0 achieving 26.3%+ conversion efficiency, plus THC (HJT, 26.49% on cells and 802.43W modules), TBC (Tongwei Back-Contact, 27.29% R&D efficiency in Q1 2026), and perovskite/silicon tandem cells (34.94% lab efficiency on 1.07 cm² area). Manufacturing is supported by 3,956 PV-related patents, the world's first Lighthouse Factory in PV cell manufacturing at Meishan, and 380+ intelligent production lines with 5,000+ automated transport robots. The Global Innovation R&D Center provides pilot lines for next-generation cell and module architectures, including copper interconnection metallization to reduce silver consumption.

Tongwei's business model is B2B hardware sales with direct enterprise engagement plus a distributor and regional partner network. Pricing is negotiated by order volume and specification; products are sold to utility-scale developers, commercial and industrial rooftop customers, residential installers, and through the company's own Fishery & PV Integration power station platform (56+ stations, 5.1GW+ grid-connected capacity across 20+ Chinese provinces). Go-to-market combines direct sales offices in Chengdu, Frankfurt, and Sydney with strategic partners in the Philippines, Middle East, Thailand, and Australia, and an authorized dealer network for module distribution. Leadership is concentrated around founder-Chairman Liu Hanyuan and Chairman & CEO Liu Shuqi, with board oversight from former Huawei Smart PV President Xu Yingtong and other senior policy and finance figures.

Name

Tongwei Solar

Legal name

Tongwei Co., Ltd.

Website

https://en.tongwei.cn

Company type

Public

Founded year

1982

Operating status

Operating

Headcount range

5,001–10,000 employees

Short description

Tongwei Solar is a vertically integrated Chinese PV manufacturer — the world's largest polysilicon producer (900,000 tons) and #1 global solar cell shipper for nine years — supplying N-type cells, modules, and Fishery & PV Integration power stations to utilities, C&I buyers, and residential installers across 70+ countries.

Ownership category

akta.pro rank

Product category

Photovoltaic Manufacturing

NAICS

Semiconductor and Related Device Manufacturing (334413)

SIC

Semiconductors & Related Devices (3674)

akta.pro primary industry

Solar PV Module & Cell Manufacturing (Crystalline, Thin-Film) (EUAMAHAA)

akta.pro secondary industries

Solar PV Module Manufacturing (Cells, Modules, Thin-Film) (EUAMABAD), Next-Gen Photovoltaics R&D (Perovskite, Tandem, Organic, BIPV Materials) (EUAMAOAA)

Keywords

• Crystalline silicon production
• Solar cell manufacturing
• Photovoltaic modules
• Fishery-PV integration
• Agrivoltaic power stations

Headquarters

HQ city

Chengdu

HQ country

China

HQ region

Asia

Offices14 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Technology or R&D, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. High-purity Crystalline Silicon Sales: Tongwei is the world's largest producer of high-purity polysilicon with 900,000 tons annual capacity. Products are sold to solar cell manufacturers globally.
2. Solar Cell Sales: TW Solar Co., Ltd. manufactures and sells solar cells globally. Has ranked No. 1 globally in cell shipments for nine consecutive years since 2017. Production capacity exceeds 150GW for N-type cells.
3. PV Module Sales: TW Solar Technology Co., Ltd. manufactures and sells PV modules globally. PV module production capacity reaches approximately 90GW. Products shipped to over 70 countries and regions.
4. PV Power Station Development and Operation: Tongwei New Energy Co., Ltd. focuses on 'Fishery & PV Integration' power station development. Has developed and constructed 56 power stations with grid-connected capacity exceeding 5.1GW across 20+ provinces.

Go-to-market motion2 records

Distribution channels4 records

Marketing channels7 records

Core offering

Tongwei Solar manufactures high-purity crystalline silicon (polysilicon), N-type solar cells, and high-efficiency photovoltaic modules, with combined annual production capacities of 900,000 tons, 150GW+, and 90GW respectively. The company also develops and operates "Fishery & PV Integration" power stations, with 56 stations constructed and grid-connected capacity exceeding 5.1GW. Products are sold to enterprise customers including solar cell/module manufacturers, utility-scale developers, commercial & industrial project owners, and residential installers across 70+ countries.

Product overview

Tongwei Solar is a vertically integrated photovoltaic company offering a comprehensive product portfolio across the solar value chain. The core offering includes high-efficiency N-type solar cells (TNC-M10, TNC-G12, TNC-G12R) and premium solar modules (TWMNF/TWMNH series), with three generations of TNC cell technology (TNC 1.0, 2.0, 3.0) achieving over 26.3% conversion efficiency. The TNC 3.0 BIFIMAX module delivers up to 770W with 93.07% bifaciality, while the THC-G12-66 HJT module reaches 802.43W. Advanced technologies include 908 Technology (0BB), TPE, Poly Tech, and Stencil Printing. Beyond modules, Tongwei provides complete PV solutions including high-purity crystalline silicon (900,000 tons annual capacity), Fishery & PV Integration power stations, flexible mounting structures, and cloud-based O&M services. The company operates world's first Lighthouse Factory in PV cell manufacturing with integrated AI inspection and full lifecycle traceability.

Differentiator

Problem solved

Functional benefit

Brands

• TNC: Tongwei N-type cell technology lineup including TNC 1.0, 2.0, and 3.0 with conversion efficiency above 26.3%
• THC
• TBC
• Fishery & PV Integration

Products and services

• High-purity Crystalline Silicon (Polysilicon) High-purity polysilicon with purity of 99.999999999% (over 90% reaches electronic grade), manufactured via the Modified Siemens Method with proprietary Cold Hydrogenation, Anti-disproportionation, and High-efficiency Reduction technologies. Annual production capacity of 900,000 tons, ranked No.1 globally in market share and shipment since 2021. Sold to solar cell manufacturers globally as the foundational raw material for the PV value chain.
• TNC-M10 Bifacial Cell N-type monocrystalline bifacial solar cell with dimensions of 182.2mm x 183.75mm, achieving efficiency up to 25.6% with front efficiency up to 25.6% and rear efficiency >20.5%. Manufactured by TW Solar Co., Ltd. for sale to module assemblers and global solar manufacturers.
• TNC-G12 Bifacial Cell Large-size N-type monocrystalline bifacial solar cell with dimensions of 210mm x 210mm, achieving efficiency up to 25.6% with front efficiency up to 25.6% and rear efficiency >20.5%. Part of TNC platform for utility-scale and C&I module applications.
• TNC-G12R Bifacial Cell N-type monocrystalline bifacial solar cell with dimensions of 210mm x 182mm, achieving efficiency up to 25.7% with rear efficiency up to >21.5%. Rectangle-format TNC cell for high-power bifacial modules.
• TNC Cell Technology Platform (TNC 1.0, TNC 2.0, TNC 3.0) Tongwei's proprietary N-type cell technology platform available in three generations: TNC 1.0, TNC 2.0 (with TPE Tungsten Phosphide Environment, multi-slicing, and Poly Tech methods delivering >10W power gain per module), and TNC 3.0 (multi-cut cell achieving >26.3% conversion efficiency with five-percentage-point bifacial improvement). TNC cells are sold globally to module manufacturers.
• TBC Cell Technology Back-contact (TBC) solar cell technology under development at Tongwei, with R&D efficiency reaching 27.29% in Q1 2026. Part of Tongwei's next-generation cell technology portfolio alongside TNC, THC, and perovskite/silicon tandem cells.
• TWMNF-66QD Module High-efficiency bifacial solar module with maximum power of 770W, part of TNC 3.0 technology platform with mass production bifaciality of 90±5%. Designed for utility-scale and C&I installations.
• TWMNH-66QD Module High-efficiency bifacial solar module with maximum power of 670W, featuring TNC technology for superior energy yield. Targeted at utility-scale and commercial installations.
• TWMNF-66HD Module High-efficiency solar module with maximum power of 750W, featuring 908 Technology (Tongwei's zero-busbar technology), TPE Technology, Stencil Printing, and Poly Tech for enhanced efficiency and reliability.
• TWMNH-66HD Module High-efficiency solar module with maximum power of 655W, utilizing advanced TNC cell technologies for improved power performance in utility and commercial applications.
• TWMNH-48HW Module Residential solar module with maximum power of 480W, designed for rooftop installations with compact dimensions under 2 m², featuring dual-glass structure and 2.0mm heat-strengthened glass for wind and hail resistance.
• TWMNH-48HE Module Residential solar module with maximum power of 475W, optimized for residential rooftop applications with TNC cell technology and compact form factor.
• THC-G12-66 Bifacial Module High-power HJT (Heterojunction) bifacial module with maximum power of 802.43W, featuring 0BB interconnection technology, copper interconnection technology, bifacial microcrystalline process, and ultrathin wafer technology. Power is 60W+ higher than PERC modules with 20+% higher bifaciality.
• TNC 3.0 BIFIMAX Module High-efficiency bifacial solar module launched at Intersolar Europe 2026, featuring 93.07% bifaciality rate, up to 770W power output, and 24.8% conversion efficiency, certified by TÜV Rheinland. Built on TNC 3.0 multi-cut cell technology with 908, TPE, Poly Tech, and multi-slicing innovations.
• TNC 2.0 G12R-48 Module Residential solar module delivering 480W maximum output in a compact design under 2 m². Features dual-glass structure and 2.0mm heat-strengthened glass for outstanding resistance to wind and hail. Tested to withstand hailstones up to 45mm at 30.8 m/s and wind speeds of 167.76 km/h (Category 15 typhoon).
• Fishery & PV Integration Power Station Solutions Innovative agrivoltaic development model enabling electricity generation above water and aquaculture in water. Developed by Tongwei New Energy Co., Ltd., with 56 stations constructed and grid-connected capacity exceeding 5.1GW across 20+ provinces. Supports 120-150GW of PV capacity potential over 266,800 hectares of ponds while producing healthy aquatic products.
• Flexible Bracket Structure for Fishery-PV World's first V-shaped cable system structure with unique anti-arch technology, enabling module low-stress and zero-disturbance installation platform. Ultra-long span (40-60M), high clearance (7.0M), passes scale 13 typhoon tests. 100MW-level flexible projects completed with 20+ patents.
• Cloud Monitoring Service for PV Power Stations Smart O&M service for PV power stations using PV power station smart cloud platform with integrated AI inspection, micromagnetic eddy current damping vibration absorption technology, and grating fiber cable force online monitoring technology. Enables automated monitoring, lifecycle traceability, and intelligent operations management.
• PV Power Station Development (EPC) Turnkey development of grid-connected PV power stations across multiple provinces and municipalities in China. Tongwei New Energy Co., Ltd. focuses on utility-scale and agrivoltaic project development with 56+ stations developed and 5.1GW+ total grid-connected capacity.

Quantifiable outcome

• TNC 3.0 module generates additional €180,000 annually and 81.62 million kWh over lifespan at 100MW Hamburg project
• +7 more outcomes

Named customers7 records

Segments4 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

AI capability2 records

Feature16 records

Partnerships

Ten partnerships are on record, tiered core and flagship.

• Haitian Water GroupcoreTechnology or Integration · 1 March 2026Upgraded partnership through end of 2030. Haitian Water is world's largest solar cell maker's priority supplier for silver paste. In return, Tongwei will provide priority pricing, quality control, and after-sales service. Haitian Water entered PV materials by acquiring Heraeus' silver paste business for CNY502 million.
• Sungrid Energy Corp.coreStrategic or Co-development Partner · 26 November 2025Strategic cooperation agreement signed at Tongwei Global Partner Summit 2025. Sungrid Energy Corp. is a Philippines-based solar energy company. Partnership focuses on advancing solar technology adoption and renewable energy projects in the Philippine market.
• Arab Consulting OfficecoreStrategic or Co-development Partner · 26 November 2025Strategic cooperation agreement signed at Tongwei Global Partner Summit 2025. Arab Consulting Office is a Middle East-based consulting firm. Partnership aims to expand Tongwei's presence and promote solar solutions in Middle Eastern markets.
• Sun City To Import Renewable Solar Energy SystemscoreStrategic or Co-development Partner · 26 November 2025Strategic cooperation agreement signed at Tongwei Global Partner Summit 2025. Company specializes in importing renewable solar energy systems. Partnership focuses on market development in the Middle East region.
• Constant Energy Services (Thailand) Co., Ltd.coreStrategic or Co-development Partner · 26 November 2025Strategic cooperation agreement signed at Tongwei Global Partner Summit 2025. Thailand-based solar services company. Partnership aims to expand solar project development and deployment in Southeast Asian markets.
• World Wide Fund for Nature (WWF)flagshipStrategic or Co-development Partner · 25 November 2025Multi-year partnership for Arctic protection and responsible renewable energy development. Tongwei is the first solar company in China to join WWF's Arctic programme. Includes sea ice monitoring, human-wildlife coexistence tools, and data-driven environmental decision-making solutions.
• Blue Sun GroupcoreChannel Partner/ Reseller/ Distributor · 21 August 2025Australia-based solar distributor. Partnership for roadshow events in Brisbane, Sydney, and Melbourne showcasing TNC 2.0 modules. Blue Sun Group distributes Tongwei products throughout the Australian market with focus on reliability testing for extreme weather conditions.
• Trina Solar Co., Ltd.coreStrategic or Co-development Partner · 1 April 2021Joint venture - Tonghe Company. Jointly invested and constructed by TW Solar Co., Ltd. and Trina Solar Co., Ltd. Gives full play to leading advantages of both companies across industrial chain aspects, strengthening strategic partnership with professional division of labor, dislocation development, and mutually beneficial collaboration.
• China Telecom and HuaweicoreTechnology or IntegrationJintang Company is first company in global PV industry to apply 5G in industrial Internet field. Partnership enables intelligent manufacturing capabilities including 5G proprietary frequency band stability of 99.999%.
• ILOS Projects GmbH & Co. KGcoreChannel Partner/ Reseller/ DistributorAnnual TOP Project Client Award recipient at Tongwei Global Partner Summit 2025. Outstanding partner demonstrating exceptional performance in PV sector and commitment to driving renewable energy adoption.

Scale indicators29 records

Recent moves7 records

Expansion highlights6 records

Direct peers

• JA Solar: Top-five global PV module manufacturer with vertically integrated wafer, cell, and module production. Directly comparable to Tongwei in crystalline silicon module manufacturing scale, N-type technology adoption, and global distribution across utility-scale, C&I, and residential segments.
• JinkoSolar: One of the world's largest and most recognized PV module manufacturers with vertically integrated cell and module production. Directly comparable to Tongwei in module scale, N-type TOPCon technology adoption, and global shipment reach across 70+ countries.
• Xinte Energy: China-based polysilicon manufacturer and subsidiary of TBEA, one of the leading global polysilicon producers. Directly comparable to Tongwei's Yongxiang polysilicon division, competing in polysilicon ASPs, capacity, and electronic-grade silicon purity grades.
• GCL Technology: Major Chinese polysilicon and wafer producer with integrated cell and module operations. Highly comparable to Tongwei's Yongxiang polysilicon business, competing head-to-head in polysilicon ASPs, wafer cutting, and downstream silicon-based module supply.
• First Solar: Largest Western-headquartered thin-film (CdTe) PV module manufacturer and a leading global module supplier. Comparable to Tongwei as a major utility-scale module manufacturer competing for the same global utility-scale project pipelines, though differentiated by thin-film vs. crystalline silicon technology.
• LONGi Green Energy: World's largest monocrystalline silicon and PV module manufacturer with vertically integrated operations spanning wafers, cells, and modules. Directly comparable to Tongwei as both are vertically integrated crystalline silicon leaders with polysilicon exposure and global module footprints.
• Risen Energy: Vertically integrated PV module manufacturer with HJT and TOPCon technology portfolios and global module shipments. Directly comparable to Tongwei in module technology positioning, N-type cell adoption, and global project execution capabilities.
• Hanwha Qcells: Major Korea-based PV module manufacturer with vertically integrated cell and module production and a top-five global module market share. Comparable to Tongwei as a major non-Chinese-headquartered module supplier competing in utility-scale, C&I, and residential markets with N-type technology.
• Trina Solar: Top global PV module manufacturer with vertically integrated cell and module capabilities and an existing joint venture (Tonghe Company) with Tongwei. Directly comparable as both are leading N-type TOPCon module suppliers with similar technology roadmaps and overlapping customer bases.
• Canadian Solar: Vertically integrated solar manufacturer producing ingots, wafers, cells, and modules with significant global project development arm. Comparable to Tongwei in vertically integrated manufacturing and the combination of module supply with utility-scale project development.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles9 records

Subsidiaries6 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tongwei Solar