Hjt

HJT (Heterojunction Technology) combines crystalline silicon and amorphous silicon thin-film technologies. Its primary advantages include a higher conversion efficiency (often exceeding 24%), a lower temperature coefficient (-0.24%/°C to -0.26%/°C) which ensures better performance in hot climates, and superior bifaciality (up to 90%+), allowing the back side to generate significantly more energy from reflected light.

To ensure safety and international market access, buyers must verify IEC 61215 (terrestrial PV modules design qualification) and IEC 61730 (safety qualification). For specific markets, look for UL 1703 (North America), CE Marking (Europe), and TÜV Rheinland/SÜD factory audits. Additionally, ensure the product has PID (Potential Induced Degradation) resistance certification to guarantee long-term stability.

HJT cells use N-type monocrystalline silicon wafers, which are inherently immune to LID (Light Induced Degradation) because they do not suffer from boron-oxygen complexes found in P-type cells. This results in a lower annual degradation rate (approx. 0.25% - 0.4%) and typically allows manufacturers to offer 25 to 30-year linear power warranties.

HJT is ideal for utility-scale power plants with high albedo surfaces (like sand or snow) due to its high bifaciality. It is also highly effective for commercial and industrial (C&I) rooftops where space is limited but high energy density is required, and in high-temperature regions where standard panels lose efficiency rapidly.

Always request an EL (Electroluminescence) test report for the specific batch before shipment to detect micro-cracks or inactive areas. It is highly recommended to use Made-in-China.com's inspection services or third-party auditors like SGS/Intertek to conduct a pre-shipment inspection (PSI) to verify that the modules meet the Grade A specifications promised in the contract.

HJT modules are sensitive to mechanical stress. Ensure the supplier uses vertical packaging with reinforced corner protectors and heavy-duty pallets to prevent cell cracking during sea transit. Clarify Incoterms (e.g., CIF vs. DDP); for solar products, ensure the maritime insurance covers 110% of the cargo value and specifically includes coverage for glass breakage.

For large-scale B2B transactions, avoid 100% upfront payments. A standard professional structure is 30% deposit / 70% against the Bill of Lading (B/L) copy or via a Letter of Credit (L/C) for high-value orders. Utilizing the Secured Trading services on Made-in-China.com provides an additional layer of escrow-like protection, ensuring funds are only released when shipping milestones are met.

Buyers must stay informed on Anti-Dumping and Countervailing Duties (AD/CVD) and specific regional policies like the UFLPA (USA) or the EU's Carbon Border Adjustment Mechanism (CBAM). Request a Certificate of Origin and a full Supply Chain Traceability Report from the supplier to prove the silicon source and manufacturing location to avoid customs seizures.