The JA Solar 545W solar panel represents the pinnacle of photovoltaic technology, engineered for superior performance in diverse environmental conditions. As a leading solution in the JA Solar 545W series, this monocrystalline module delivers exceptional power output with a maximum efficiency of up to 21.3%. Designed for commercial, industrial, and utility-scale installations, the JA Solar 545W panel utilizes advanced half-cut cell technology and TOPCon N-type cells, minimizing power loss and enhancing energy yield even in low-light scenarios.
With a robust 30mm anodized aluminum alloy frame and high-transmission tempered glass, the JA Solar 545W ensures long-term durability against harsh weather, including wind loads up to 2400Pa and snow loads up to 5400Pa. Certified under international standards such as IEC 61215 and IEC 61730, this panel offers a 12-year product warranty and a 30-year linear power warranty, guaranteeing at least 87.4% output after 30 years. Ideal for international trade and B2B procurement, the JA Solar 545W module supports seamless integration into large-scale solar farms, rooftop systems, and ground-mounted arrays, driving sustainable energy projects worldwide.
JA Solar's commitment to innovation shines through in the 545W model's multi-busbar (MBB) design, which reduces resistive losses and boosts overall reliability. Whether optimizing space-constrained rooftops or maximizing ROI in expansive solar parks, the JA Solar 545W delivers consistent, high-yield performance backed by rigorous testing for salt mist corrosion and ammonia resistance, making it perfect for coastal or agricultural applications.
| Category | Parameter | Value |
|---|---|---|
| Electrical Data (STC) | Maximum Power (Pmax) | 545W |
| Module Efficiency | 21.3% | |
| Open Circuit Voltage (Voc) | 52.25V | |
| Short Circuit Current (Isc) | 13.62A | |
| Maximum Power Voltage (Vmpp) | 43.60V | |
| Maximum Power Current (Impp) | 12.50A | |
| Fill Factor | 83.1% | |
| Bifaciality | 80% | |
| Electrical Data (NMOT) | Maximum Power (Pmax) | 411W |
| Open Circuit Voltage (Voc) | 49.10V | |
| Short Circuit Current (Isc) | 11.12A | |
| Maximum Power Voltage (Vmpp) | 35.94V | |
| Maximum Power Current (Impp) | 11.44A | |
| Efficiency at NMOT | 16.0% | |
| Temperature Characteristics | NMOT | 43 ± 2°C |
| Pmax Temperature Coefficient | -0.30%/°C | |
| Voc Temperature Coefficient | -0.26%/°C | |
| Isc Temperature Coefficient | +0.045%/°C | |
| Operating Temperature | -40°C to +85°C | |
| Mechanical Data | Cell Type | N-Type TOPCon, 182mm Half-Cut |
| Number of Cells | 144 (2 x 72) | |
| Dimensions (L x W x H) | 2278 x 1134 x 30 mm | |
| Weight | 27.3 kg | |
| Front Glass | 3.2mm Tempered Glass | |
| Frame | Anodized Aluminum Alloy | |
| Junction Box | IP68 Rated | |
| Qualifications & Warranty | Certifications | IEC 61215, IEC 61730, UL 61730, CE |
| Product Warranty | 12 Years | |
| Power Warranty | 30 Years (87.4% at Year 30) | |
| Maximum System Voltage | 1500V DC | |
| Maximum Series Fuse Rating | 30A |
STC: Irradiance 1000W/m², Cell Temperature 25°C, AM 1.5. NMOT: Irradiance 800W/m², Ambient Temperature 20°C, Wind Speed 1m/s. Specifications subject to final datasheet; tolerances apply.

The JA Solar 545W panel excels in a wide array of deployment scenarios, tailored for B2B projects requiring reliable, high-output photovoltaics. In utility-scale solar farms, its high power density and bifacial capabilities maximize land utilization, generating substantial MW-scale energy with minimal footprint. For commercial rooftops on warehouses, factories, and office buildings, the JA Solar 545W offers optimal tilt angles and wind resistance, reducing structural reinforcement needs while accelerating payback periods through elevated efficiency.
Industrial applications, such as solar-powered manufacturing facilities or EV charging stations, benefit from the module's low degradation rate (under 0.4% annually) and robust PID resistance, ensuring uninterrupted power supply. In residential ground-mount systems or agrivoltaic setups, the JA Solar 545W integrates seamlessly with trackers, leveraging its superior low-light performance to boost yields during dawn, dusk, and cloudy days. Coastal and desert projects appreciate its salt mist and sand abrasion resistance, while floating solar installations capitalize on the lightweight design and corrosion-proof materials.
Globally, the JA Solar 545W supports hybrid systems combining PV with energy storage, ideal for off-grid mining operations or remote telecom sites, delivering consistent performance across latitudes from equatorial to temperate zones.
Choosing the JA Solar 545W provides distinct competitive edges in the solar market. Its N-type TOPCon technology outperforms traditional PERC modules by 10-15% in energy yield, thanks to higher bifacial factors and reduced light-induced degradation. The half-cut configuration minimizes micro-cracks and hotspot risks, extending operational lifespan and lowering LCOE (Levelized Cost of Energy) for large-scale deployments.
With a best-in-class temperature coefficient, the JA Solar 545W maintains higher outputs in high-heat regions compared to competitors, while its 21.3% efficiency allows for fewer panels per MW, slashing installation costs and BOS (Balance of System) expenses. Rigorous third-party testing confirms <1% first-year degradation, far below industry averages, ensuring predictable returns over decades.
Furthermore, the JA Solar 545W's compatibility with mainstream inverters and trackers simplifies system design, and its eco-friendly production aligns with ESG standards, appealing to sustainability-focused buyers in international trade.
As a trusted global distributor of JA Solar products, we prioritize quality assurance through direct sourcing from JA Solar's state-of-the-art facilities in Asia. Every JA Solar 545W panel undergoes pre-shipment EL testing and power sorting to ±3W tolerances, guaranteeing consistency batch-to-batch. Our extensive inventory supports rapid fulfillment for projects of any scale, with flexible container loading optimized for sea freight efficiency.
We offer comprehensive technical support, including string sizing calculators, shading analysis tools, and on-site commissioning guidance from certified engineers. Compliance with ISO 9001 and ISO 14001 standards ensures traceability and ethical supply chains, while our partnerships with leading logistics providers enable worldwide delivery with minimal lead times. Backed by JA Solar's global service network, selecting us for your JA Solar 545W needs means reliable performance, competitive pricing, and peace of mind for your solar investments.
Q: What is the efficiency rating of the JA Solar 545W panel?
A: The JA Solar 545W achieves a module efficiency of 21.3% under STC, making it one of the most efficient choices for space-optimized installations.
Q: Does the JA Solar 545W support bifacial power generation?
A: Yes, with up to 80% bifaciality, it can generate additional power from the rear side when installed over reflective surfaces, increasing total yield by 10-30%.
Q: What warranties are provided with the JA Solar 545W?
A: A 12-year product material warranty and a 30-year linear power output warranty, retaining at least 87.4% of initial power after 30 years.
Q: Is the JA Solar 545W suitable for high-wind areas?
A: Absolutely, certified to withstand 2400Pa front-side wind load and 5400Pa snow load, ideal for exposed rooftops and open fields.
Q: What cell technology does the JA Solar 545W use?
A: N-type TOPCon half-cut cells (182mm), offering superior performance in low light and high temperatures compared to P-type alternatives.
Q: Are JA Solar 545W panels PID resistant?
A: Yes, rigorously tested for Potential Induced Degradation (PID) under IEC TS 62804, ensuring long-term reliability in high-voltage systems.
Q: What is the maximum system voltage for the JA Solar 545W?
A: 1500V DC, compatible with modern central and string inverters for efficient large-array configurations.