LONGi Solar Panel 550W - Premium High-Efficiency Monocrystalline Module

1. Product Overview

The LONGi solar panel 550W represents the pinnacle of photovoltaic innovation from LONGi Solar, a global leader in monocrystalline silicon technology. Engineered with advanced HPBC (Hybrid Passivated Back Contact) cell architecture, this 550W module delivers exceptional power output and efficiency, reaching up to 22.8% module efficiency. Designed for demanding commercial and industrial applications, the LONGi solar panel 550W combines cutting-edge manufacturing processes with robust build quality to ensure maximum energy yield over its 30-year lifespan.

Ideal for large-scale solar projects, rooftop installations, and utility-scale farms, the LONGi solar panel 550W minimizes levelized cost of energy (LCOE) through superior performance in low-light conditions and high-temperature environments. Its half-cut cell design reduces microcracking risks and boosts shade tolerance, making it a reliable choice for international trade partners seeking Tier 1 quality. Certified to international standards including IEC 61215, IEC 61730, and UL 1703, this panel guarantees compliance and peace of mind for B2B buyers worldwide.

With a focus on sustainability, LONGi incorporates recyclable materials and low-carbon production methods, aligning with global ESG goals. Whether you're outfitting a commercial warehouse or a ground-mounted array, the LONGi solar panel 550W sets a new benchmark for reliability, efficiency, and return on investment in the renewable energy sector.

2. Key Features

• Ultra-High Efficiency: Achieving 22.8% efficiency with HPBC 2.0 technology, the LONGi solar panel 550W maximizes power generation per square meter, perfect for space-constrained installations.
• Advanced Bifacial Design: Optional bifacial configuration captures rear-side irradiance, increasing energy yield by up to 25% in reflective environments like white rooftops or snowy terrains.
• Superior Durability: Anodized aluminum frame and tempered glass with AR coating ensure resistance to PID, salt mist, ammonia, and extreme weather, backed by a 30-year linear power warranty.
• Low-Light Performance: Optimized for dawn, dusk, and cloudy days, delivering 98.5% efficiency at 200W/m² irradiance.
• Smart Manufacturing: Produced in fully automated lines with diamond wire-sawn wafers, minimizing defects and ensuring batch-to-batch consistency.
• Easy Integration: Compatible with major inverters and tracking systems, with MC4 connectors and optimized dimensions for standard racking.
• Environmental Resilience: Wind load up to 2400Pa and snow load up to 5400Pa, certified for harsh climates from deserts to coastal regions.

3. Technical Specifications

Note: Specifications are STC (Standard Test Conditions: 1000W/m², 25°C, AM 1.5). Actual performance may vary based on installation conditions.

4. Application Scenarios

The LONGi solar panel 550W excels in diverse B2B deployment scenarios, offering versatility for international projects. In commercial rooftops, its compact footprint and high efficiency enable optimal space utilization for warehouses, factories, and office buildings, reducing electricity bills by up to 70%.

For utility-scale solar farms, the panel's low degradation rate (0.4% annually) and bifacial gains make it ideal for ground-mounted arrays on trackers, maximizing ROI in large MW-scale developments across deserts or farmlands.

Industrial applications benefit from its robustness against harsh conditions, such as oil & gas facilities or agricultural greenhouses, where ammonia and salt resistance prevents premature failure.

Additionally, floating solar projects leverage its lightweight design and anti-soiling coating for water-based installations, minimizing algae buildup. In off-grid scenarios like remote mining sites or telecom towers, the LONGi solar panel 550W provides reliable hybrid power solutions, paired with batteries for energy independence.

5. Advantages

Choosing the LONGi solar panel 550W delivers tangible advantages over conventional modules. Its HPBC technology surpasses traditional PERC by reducing recombination losses, yielding 10-15% more annual energy production. This translates to shorter payback periods and higher internal rates of return (IRR) for investors.

With a first-year degradation under 1% and linear warranty guaranteeing 87.4% output at year 30, the LONGi solar panel 550W outperforms competitors in long-term reliability. Bifaciality enhances performance on reflective surfaces, boosting yields in real-world conditions by 10-30%.

Cost-efficiency is evident in its low BOS (balance of system) requirements due to higher power density, fewer panels needed, and compatibility with 1500V systems. Environmental benefits include a carbon footprint of just 800g CO2/kWh during lifecycle, supporting corporate sustainability targets.

Backed by LONGi's global supply chain, the panel ensures consistent quality from wafer to module, with rigorous EL testing eliminating hidden cracks.

6. Why Choose Us

As a premier distributor of LONGi products, we offer the authentic LONGi solar panel 550W with full traceability via serial numbers linked to LONGi's manufacturing database. Our B2B expertise spans international trade, providing competitive bulk pricing, flexible MOQs, and swift global logistics to ports in Europe, Americas, Asia, and beyond.

We prioritize quality assurance with third-party inspections, ISO 9001-certified warehousing, and comprehensive documentation including test reports and customs clearances. Our technical support team assists with system design, yield simulations via PVSyst, and post-installation monitoring.

Partnering with us means access to LONGi's Tier 1 banking and insurance, mitigating project risks. We stock millions of watts ready for shipment, ensuring timelines for EPC contractors and developers. Committed to mutual success, we deliver value through performance guarantees, extended warranties, and tailored financing options.

7. FAQ

What is the power warranty for the LONGi solar panel 550W?

The LONGi solar panel 550W comes with a 30-year linear power output warranty, ensuring at least 98.2% output in year 1, with annual degradation of 0.4% thereafter, reaching 87.4% at year 30.

Is the LONGi solar panel 550W suitable for bifacial installations?

Yes, select models feature bifacial technology, capturing up to 25% additional energy from rear-side reflection, ideal for ground mounts with albedo surfaces.

What certifications does the LONGi solar panel 550W hold?

It complies with IEC 61215/61730 for durability, UL 1703 for fire safety, CE for Europe, and other regional standards like INMETRO and JET.

How does the LONGi solar panel 550W perform in high temperatures?

With a low temperature coefficient of -0.34%/°C, it maintains superior output, losing only 12.6% at 65°C compared to STC.

Can the LONGi solar panel 550W be used in off-grid systems?

Absolutely, its high Voc and compatibility with charge controllers make it perfect for hybrid or standalone setups in remote applications.

What is the lead time for bulk orders of LONGi solar panel 550W?

Standard lead times are 2-4 weeks for pallet quantities, with expedited options for container loads from our regional warehouses.