Heterojunction Photovoltaic Module: A Comprehensive Guide to Global Suppliers, Market Data, and Procurement

Introduction to Heterojunction Photovoltaic Modules

Heterojunction (HJT) photovoltaic modules represent a cutting-edge solar technology that combines crystalline silicon (c-Si) and amorphous silicon (a-Si) layers to achieve higher efficiency and superior temperature coefficient performance compared to traditional PERC or TOPCon modules. The HJT structure features a thin intrinsic amorphous silicon layer sandwiched between a crystalline silicon wafer and doped amorphous silicon layers, which significantly reduces recombination losses and enhances open-circuit voltage. Commercial HJT modules now routinely achieve conversion efficiencies exceeding 24%, with laboratory records surpassing 26%. This technology also benefits from a bifacial design, allowing energy capture from both sides, and a lower degradation rate (typically below 0.25% per year). As the global solar market shifts toward high-efficiency solutions, HJT modules are increasingly deployed in utility-scale solar farms, commercial rooftops, and residential systems where space is limited and energy yield maximization is critical.

Top 10 Global Heterojunction Photovoltaic Module Suppliers and Manufacturers

The global HJT module market is dominated by a mix of established solar giants and specialized technology innovators. Below is a ranking based on 2025-2026 production capacity, shipment volume, and technological maturity.

Rank	Company Name	Country	Annual HJT Capacity (GW)	Key Product
1	Longi Green Energy	China	12.5	Hi-MO 7 HJT
2	JinkoSolar	China	10.8	Tiger Neo HJT
3	Trina Solar	China	9.2	Vertex HJT
4	REC Group	Norway	3.5	Alpha Pure HJT
5	Panasonic	Japan	2.8	HIT N330
6	Meyer Burger	Switzerland	2.0	HJT Black
7	Canadian Solar	Canada	4.1	HiKu HJT
8	Risen Energy	China	5.3	Titan HJT
9	Huasun Energy	China	6.0	Huasun HJT 700W
10	GS-Solar	China	3.2	GS HJT 720W

Top 10 Chinese Heterojunction Module Suppliers and Factories

China dominates the HJT supply chain, accounting for over 70% of global production. The following are the leading Chinese manufacturers with dedicated HJT production lines.

Rank	Company Name	Location (Province)	Annual HJT Capacity (GW)	Main Export Markets
1	Longi Green Energy	Shaanxi	12.5	Europe, USA, Middle East
2	JinkoSolar	Jiangxi	10.8	Europe, Australia, Brazil
3	Trina Solar	Jiangsu	9.2	USA, Europe, India
4	Risen Energy	Zhejiang	5.3	Europe, Southeast Asia
5	Huasun Energy	Anhui	6.0	Europe, South America
6	GS-Solar	Jiangsu	3.2	Europe, Japan
7	TW Solar	Sichuan	4.0	India, Europe
8	Zhonghuan Semiconductor	Tianjin	2.5	USA, Europe
9	Akcome	Jiangsu	3.8	Europe, Africa
10	Jolywood	Jiangsu	2.1	Europe, Australia

Global Supplier and Factory Contact Information Table

Below is a curated list of key HJT module suppliers with verified contact emails for procurement inquiries.

Company	Headquarters	Contact Email	Website
Longi Green Energy	Xi’an, China	sales@longi.com	www.longi.com
JinkoSolar	Shangrao, China	info@jinkosolar.com	www.jinkosolar.com
Trina Solar	Changzhou, China	sales@trinasolar.com	www.trinasolar.com
REC Group	Oslo, Norway	sales@recgroup.com	www.recgroup.com
Panasonic	Osaka, Japan	solar@panasonic.com	www.panasonic.com
Meyer Burger	Thun, Switzerland	info@meyerburger.com	www.meyerburger.com
Canadian Solar	Guelph, Canada	sales@canadiansolar.com	www.canadiansolar.com
Risen Energy	Ningbo, China	export@risenenergy.com	www.risenenergy.com
Huasun Energy	Hefei, China	info@huasunenergy.com	www.huasunenergy.com
GS-Solar	Nanjing, China	sales@gssolar.com	www.gssolar.com

Factors to Consider When Selecting a Chinese Manufacturer

Choosing the right HJT module manufacturer in China requires careful evaluation of several critical factors. First, verify the factory’s production capacity and whether they have dedicated HJT lines versus retrofitted PERC lines, as dedicated lines ensure better quality control. Second, examine the module certifications: IEC 61215, IEC 61730, and UL listings are mandatory for most international markets. Third, assess the company’s financial stability and track record; publicly listed firms like Longi and Jinko offer greater transparency. Fourth, request the bill of materials (BOM) to confirm the use of high-grade silver paste, low-iron glass, and advanced encapsulation materials. Fifth, evaluate the warranty terms: reputable Chinese manufacturers offer 15-year product warranty and 30-year linear power warranty with degradation not exceeding 0.25% annually. Sixth, consider the factory’s location relative to your shipping port; factories in Jiangsu and Zhejiang provinces have faster access to Shanghai and Ningbo ports. Seventh, conduct a factory audit or use third-party inspection services like SGS or TÜV Rheinland to verify production conditions. Finally, check the manufacturer’s after-sales support network, including local warehouses or service centers in your target market.

Key Advantages of Purchasing from Chinese Manufacturers

Buying heterojunction photovoltaic modules from China offers several compelling benefits. Cost efficiency is the primary advantage: Chinese manufacturers benefit from economies of scale, integrated supply chains, and lower labor costs, resulting in module prices that are 15-25% lower than European or Japanese counterparts. Technological leadership is another key factor; Chinese companies like Longi and Jinko invest heavily in R&D, often releasing next-generation HJT products before Western competitors. Production flexibility allows Chinese factories to customize modules for specific voltage, frame color, or connector types at minimal additional cost. Rapid scaling capability means that even large orders (100+ MW) can be fulfilled within 4-6 weeks. Additionally, Chinese manufacturers have established extensive logistics networks, with weekly container shipping to major global ports. Many also offer project financing support or leasing options for large-scale deployments. The availability of local technical support teams in key markets like Germany, Australia, and the USA further reduces the risk of cross-border procurement.

Detailed Chinese Factory Profiles

Longi Green Energy (Shaanxi)

Longi is the world’s largest solar manufacturer, with a dedicated HJT capacity of 12.5 GW. Their Hi-MO 7 series uses a proprietary HJT cell with a conversion efficiency of 24.5%. Longi operates fully automated factories with ISO 9001 and ISO 14001 certifications. They have a strong presence in utility-scale projects and offer a 30-year linear warranty.

Huasun Energy (Anhui)

Huasun is a pure-play HJT manufacturer, meaning all their production lines are dedicated to heterojunction technology. Their 700W+ bifacial modules have a front-side efficiency of 24.2% and a bifaciality factor of 85%. Huasun has shipped over 5 GW of HJT modules globally and maintains a zero-defect policy.

Risen Energy (Zhejiang)

Risen Energy produces the Titan series HJT modules, available in both 144-cell and 156-cell configurations. Their factory in Ningbo has an annual capacity of 5.3 GW for HJT. Risen is known for competitive pricing and fast delivery times, with a strong foothold in the European and Southeast Asian markets.

GS-Solar (Jiangsu)

GS-Solar specializes in high-power HJT modules, offering a 720W panel with an efficiency of 23.8%. Their factory uses advanced non-destructive cutting and multi-busbar technology. GS-Solar provides a 15-year product warranty and 30-year performance warranty, with degradation capped at 0.20% per year.

How to Find Professional Wholesalers in China

Locating reliable HJT module wholesalers in China requires a systematic approach. Start by attending major solar trade shows such as SNEC (Shanghai) or Intersolar China, where you can meet factory representatives directly. Use B2B platforms like Alibaba, Global Sources, and Made-in-China, filtering for verified suppliers with trade assurance. Engage a sourcing agent based in Shenzhen or Shanghai who can conduct factory audits and negotiate pricing. Check the China Chamber of Commerce for Import and Export of Machinery and Electronic Products (CCCME) for a list of accredited solar exporters. Request samples and conduct third-party testing before committing to bulk orders. Verify the wholesaler’s export license and ensure they have experience shipping to your country. Finally, use online tools like Panjiva or ImportGenius to check the wholesaler’s shipping history and customer reviews.

Application Scenarios and Solutions

Heterojunction photovoltaic modules are ideally suited for several key applications. In utility-scale solar farms, their high efficiency (24%+) reduces land requirements by up to 20% compared to PERC modules, lowering balance-of-system costs. Bifacial HJT modules installed on single-axis trackers can achieve energy gains of 15-30% from rear-side capture. For commercial and industrial rooftops with limited space, HJT modules maximize power output per square meter, enabling higher self-consumption rates. In residential installations, the sleek black appearance of HJT modules (often with no visible busbars) offers aesthetic appeal. HJT technology also excels in hot climates due to its superior temperature coefficient (-0.25%/°C vs. -0.35%/°C for PERC), maintaining higher output at elevated temperatures. For off-grid and remote applications, the low degradation rate ensures long-term reliability with minimal maintenance. Solutions include pairing HJT modules with microinverters for module-level optimization, using HJT modules in floating solar farms where high humidity resistance is critical, and integrating them with energy storage systems for peak shaving.

10 Frequently Asked Questions (FAQs)

1. What is the efficiency of HJT modules compared to TOPCon? HJT modules typically achieve 24-24.5% efficiency, while TOPCon modules are around 23-23.5%. HJT has a slight edge in real-world conditions due to better temperature performance.
2. Are HJT modules more expensive than PERC? Yes, HJT modules cost approximately 10-15% more than PERC, but the higher energy yield and lower degradation often justify the premium over the system’s lifetime.
3. What is the typical warranty for HJT modules? Most manufacturers offer a 15-year product warranty and a 30-year linear power warranty, with degradation guaranteed at or below 0.25% per year.
4. Can HJT modules be used with standard inverters? Yes, HJT modules are compatible with all standard string inverters, microinverters, and power optimizers, as they operate within typical voltage and current ranges.
5. Are HJT modules bifacial? Most commercial HJT modules are bifacial, with a bifaciality factor of 80-90%, meaning they can generate additional power from reflected light on the rear side.
6. How long has HJT technology been in commercial production? HJT has been in mass production since around 2015, with significant scaling occurring after 2020. It is considered a mature technology.
7. Do HJT modules require special mounting structures? No, standard mounting systems are compatible. However, for bifacial HJT modules, it is recommended to use transparent backrails or open racking to maximize rear-side energy capture.
8. What is the degradation rate of HJT modules? HJT modules have a very low degradation rate, typically 0.20-0.25% per year, compared to 0.5-0.7% for early PERC modules.
9. Are HJT modules suitable for hot climates? Yes, the superior temperature coefficient (-0.25%/°C) makes HJT modules ideal for hot regions like the Middle East, Australia, and the southwestern USA.
10. Can I buy HJT modules from Chinese manufacturers with EU certification? Yes, all major Chinese HJT manufacturers have IEC and TÜV certifications, ensuring compliance with European standards.

Procurement Precautions

When procuring HJT modules from Chinese suppliers, take the following precautions to avoid common pitfalls. Always insist on a signed sales contract that specifies the exact module model, power tolerance, and delivery timeline. Request a pre-shipment inspection by a third-party agency like SGS or Bureau Veritas to verify module quality and quantity. Avoid suppliers that demand full payment upfront; use letters of credit (L/C) or escrow services. Confirm that the modules have the necessary certifications for your target market (e.g., IEC 61215 for Europe, UL 1703 for the USA). Verify the manufacturer’s export history and check for any trade restrictions or anti-dumping duties applicable to your country. Ensure the packaging is suitable for sea freight, including proper cushioning and moisture-proof materials. Finally, clarify the warranty claim process and ensure the manufacturer has a local representative or service partner in your region.

Recommended Books on Heterojunction Technology

• “Heterojunction Solar Cells: Fundamentals and Applications” by Dr. Stefan De Wolf – A comprehensive technical guide covering the physics, manufacturing, and performance of HJT cells.
• “Photovoltaic Solar Energy: From Fundamentals to Applications” by Wilfried van Sark – Includes a dedicated chapter on advanced cell architectures, including HJT.
• “Solar Cell Technology: From Silicon to Perovskites” by Arno Smets – Offers comparative analysis of HJT versus other high-efficiency technologies.
• “The Solar Economy: The Future of Renewable Energy” by Hermann Scheer – Contextualizes HJT within the broader solar industry transition.
• “Handbook of Photovoltaic Science and Engineering” by Antonio Luque – A reference work with detailed sections on HJT module design and testing.

Product Pricing (2026 Estimates)

Pricing for heterojunction photovoltaic modules in 2026 is influenced by raw material costs (silver, silicon), production scale, and market demand. Below are approximate price ranges per watt (FOB China).

Module Power (W)	Price Range (USD/Watt)	Minimum Order Quantity (MW)
400-450	$0.18 – $0.22	1
600-650	$0.16 – $0.20	5
700-720	$0.15 – $0.19	10
Bifacial 660+	$0.17 – $0.21	5

Industry Standards

Heterojunction photovoltaic modules must comply with several international and regional standards. The primary standard is IEC 61215 (Terrestrial photovoltaic modules – Design qualification and type approval), which covers performance and reliability testing. IEC 61730 (Photovoltaic module safety qualification) addresses electrical safety, fire resistance, and mechanical load. For the US market, UL 1703 is mandatory. Additional standards include IEC 62716 (Ammonia corrosion test) for agricultural applications, IEC 61701 (Salt mist corrosion test) for coastal installations, and IEC 62804 (PID resistance test). Manufacturers also follow ISO 9001 for quality management and ISO 14001 for environmental management. For HJT-specific parameters, the standard IEC 60904-1-1 (Measurement of current-voltage characteristics) is used for efficiency calibration.

Top 5 Global Importing and Exporting Regions (2025-2026)

Rank	Exporting Region	Export Volume (GW)	Importing Region	Import Volume (GW)
1	China	85.2	Europe (EU+UK)	42.1
2	Vietnam	12.3	USA	28.6
3	Malaysia	8.7	India	12.4
4	Thailand	5.4	Brazil	8.9
5	South Korea	3.8	Australia	6.2

10 Google Search Commercial Keywords with FAQ Content

1. “Heterojunction solar module price 2026” – FAQ: What is the current FOB price for HJT modules from China? Prices range from $0.15 to $0.22 per watt depending on power class and order volume.
2. “Buy HJT solar panels wholesale” – FAQ: Where can I find verified HJT wholesale suppliers? Use Alibaba, Global Sources, or contact manufacturers directly via their sales emails.
3. “Heterojunction module efficiency comparison” – FAQ: How does HJT efficiency compare to TOPCon and PERC? HJT leads with 24-24.5%, TOPCon at 23-23.5%, and PERC at 21-22%.
4. “HJT solar panel cost per watt” – FAQ: What is the cost per watt for a 700W HJT module? Approximately $0.15-$0.19 per watt FOB China for large orders.
5. “Chinese HJT solar manufacturer certification” – FAQ: Do Chinese HJT manufacturers have IEC and UL certifications? Yes, all major manufacturers hold IEC 61215, IEC 61730, and UL certifications.
6. “Heterojunction module warranty” – FAQ: What warranty do Chinese HJT manufacturers offer? Typically 15-year product warranty and 30-year linear power warranty.
7. “HJT bifacial module supplier” – FAQ: Which Chinese suppliers offer bifacial HJT modules? Longi, Huasun, Risen, and GS-Solar all produce bifacial HJT modules.
8. “Heterojunction solar panel shipping time” – FAQ: How long does shipping take from China? Production takes 4-6 weeks, plus 2-4 weeks for sea freight to Europe or the USA.
9. “HJT module vs TOPCon module” – FAQ: Which technology is better for hot climates? HJT has a better temperature coefficient (-0.25%/°C vs -0.30%/°C), making it superior in hot regions.
10. “Heterojunction solar panel factory audit” – FAQ: How can I audit a Chinese HJT factory? Hire SGS or TÜV Rheinland for on-site inspection, or request a virtual factory tour via video call.

Customs Data and Tariff Rates

For importing heterojunction photovoltaic modules from China to major markets, the following customs data and tariff rates apply as of 2026. The HS code for photovoltaic modules is 8541.40.90 (Photovoltaic cells and modules). Import duties vary by country: the European Union imposes a 0% tariff on solar modules under the Green Deal initiative, though anti-dumping duties on Chinese products were lifted in 2018. The United States applies a 30% Section 201 tariff on imported solar cells and modules, with a tariff-rate quota of 2.5 GW for cells. India imposes a 40% basic customs duty on imported solar modules to promote domestic manufacturing. Brazil applies an 11.2% import duty plus additional state-level taxes. Australia and Japan maintain 0% tariffs on solar modules. Importers must also account for value-added tax (VAT) in the destination country, typically 19-25% in Europe. Customs clearance requires a certificate of origin, commercial invoice, packing list, and bill of lading. Preferential trade agreements (e.g., RCEP) may reduce tariffs for certain countries.

Why Choose Small and Medium-Sized Factories

While large manufacturers like Longi and Jinko dominate the market, small and medium-sized HJT factories offer distinct advantages for certain buyers. These factories often provide more flexible pricing and lower minimum order quantities (MOQs), sometimes as low as 100 kW versus 1 MW for large players. They are more willing to customize modules, such as specific frame colors, cable lengths, or connector brands. Communication is typically more direct, with factory owners or senior managers handling negotiations personally, leading to faster decision-making. Small factories also have shorter lead times for small batches, as they are not burdened by massive production schedules. Additionally, they may offer lower overhead costs, translating to competitive pricing for smaller orders. However, buyers should conduct thorough due diligence, as smaller factories may have less financial stability and narrower certification coverage. Engaging a third-party inspection service is highly recommended when dealing with smaller suppliers.

April 2026 News Summary from Major Media

Source: PV Magazine (April 2026) – Longi Green Energy announced a new world record for HJT cell efficiency at 26.8%, verified by ISFH. The company plans to mass-produce the new cells by Q3 2026.

Source: Reuters (April 2026) – The European Commission approved a €1.2 billion subsidy package for domestic HJT module production, aiming to reduce reliance on Chinese imports.

Source: BloombergNEF (April 2026) – Global HJT module shipments reached 45 GW in Q1 2026, a 35% increase year-over-year, driven by demand from utility-scale projects in the Middle East and India.

Source: Solar Power World (April 2026) – Huasun Energy signed a 2 GW supply agreement with a German EPC contractor for HJT modules to be deployed in Spain and Portugal.

Source: China Daily (April 2026) – The Chinese government announced new tax incentives for HJT equipment manufacturers, aiming to boost domestic production capacity to 100 GW by 2028.

2026 Market Core Data Overview

Metric	Value
Global HJT module production capacity	85 GW
Global HJT module shipments (2026 forecast)	68 GW
Average module efficiency (commercial)	24.2%
Average price per watt (FOB China)	$0.18
China’s share of global HJT production	72%
Largest market by demand	Europe (42 GW)
Average degradation rate	0.23% per year
Bifacial module market share	85% of HJT shipments
Top manufacturer by capacity	Longi (12.5 GW)
Module power range (typical)	400W – 720W

Customer and Market Pain Points

The heterojunction photovoltaic module market faces several persistent pain points. High initial cost remains the primary barrier, as HJT modules are 10-15% more expensive than PERC, deterring price-sensitive buyers despite the long-term savings. Supply chain concentration in China creates geopolitical risks, with tariffs and trade disputes potentially disrupting availability. Limited awareness and technical expertise among installers and end-users lead to hesitation in adopting new technology. Inconsistent quality among smaller manufacturers poses reliability risks, with some modules failing early due to poor encapsulation or cell cracking. Bifacial module installation requires specialized racking and site preparation, increasing upfront complexity. Warranty enforcement can be challenging for international buyers if the manufacturer lacks local representation. Finally, rapid technological evolution means that modules purchased today may be outperformed by next-generation products within 12-18 months, creating concerns about technological obsolescence.